Growing blueberries is becoming increasingly popular, especially using plastic pots and other containers. Blueberries belong to the Rhododendron family and grow luxuriantly as perennial shrubs from 40 cm to 240 cm in height, depending on the variety. Growing blueberries in containers, such as in pots or in larger containers, provides a controlled environment that supports the plant’s shallow, fibrous root system. An important aspect of container gardening is to ensure that potted plants have adequate drainage, which helps to maintain optimal humidity levels and prevents waterlogging, which is essential for healthy blueberry growth.
Blueberries have oval-shaped leaves and creamy white or pink flowers that bloom for 7 to 15 days. Blueberries depend on a soil environment rich in organic matter for their fruiting period, usually with a pH between 4.5 and 5.5, which is easier to manage in a planter. The use of planters also allows growers to adjust soil composition as needed, which benefits plant health and fruit production.
Blueberry nurseries often grow commercial seedlings in pots before transplanting them into larger nursery containers. This phased growth approach allows for efficient use of space and resources. When growing blueberries in containers, gardeners can replicate the loose, organic-rich soil preferred by blueberries and use fertilizers and soil amendments that closely match the plant’s needs. In addition, containers make it easier to control watering, which is critical to maintaining proper soil moisture levels for blueberries, especially during warmer months when blueberries may go dormant above 30 degrees Celsius.
As blueberries are sensitive to both high salinity and poor drainage, choosing well-drained plastic pots for planting ensures that the roots receive plenty of oxygen. Potting mixes containing organic materials such as pine needles or rice hulls will also improve drainage and aeration, helping blueberry plants establish a strong root system.
To maximize growth, pots should be placed in full sun, away from cold and wind-prone areas. Over time, these strategies for growing blueberries in pots can lead to healthier plants and higher yields, as the container setup provides a customized, protective environment for blueberries, which is critical to their long-term success and yield.
In the blueberry nursery process, growers often start by purchasing pot-bound commercial seedlings. To improve upfront land utilization and reduce inputs, growers will transplant these potting seedlings into their own nursery plots first, and then plant them after they have developed into large seedlings. Transplanting of seedlings is usually done in the spring after the soil has thawed, and Nursery pots, Plastic planters, or Round nursery pots can be used for transplanting.
A suitable nursery site should be a loamy plot with a sunny backdrop, loose soil, and good soil fertility. About 2,000 kg of well-decomposed organic fertilizer should be applied to each mu of land, followed by rotary plowing, leveling, and opening furrows 25-30 cm apart in rows, with a depth of about 15 cm, and sprinkling an appropriate amount of insecticide into the furrows to prevent underground pests. Next, take the blueberry potting seedlings out of the container (can be Plastic nursery plant pots or Seedling starter pots), transplant them into the field at a spacing of about 20 cm, planting depth of about 1-2 cm below the surface at the base of the stem, and 8,000 to 10,000 plants can be transplanted per acre, and water them thoroughly immediately after planting.
In spring and summer, transplanted blueberry seedlings need special attention to weeding, manual weeding is recommended to avoid the use of herbicides. Fertilizer can be applied at the end of June with about 10 grams of ammonium sulfate per plant and watering. Seedlings should also be pruned at the end of summer and beginning of fall, cutting off 20 cm or more of the seedling to promote branching. Before entering the winter, blueberry seedlings transplanted in the open ground need to be protected from the cold, usually using film or grass curtain cover and other methods.
To the next spring, with the growth of seedlings, the need for interplanting transplanting, transplanting a reasonable density of 2000 to 3000 plants per mu, and pruning of seedlings again. Pruning in the seedling height of about 40 centimeters to promote tree branching, while timely removal of weak branches, pruning work is best completed before May. Spring and autumn fertilization is also crucial, spring can choose ammonium sulfate or potassium sulfate compound fertilizer, the amount of 10 to 20 grams per plant, shallow furrow into the mulch and watering.
Autumn fertilizer can be used to choose rotted farmyard manure, to 2000 ~ 3000 kg per acre of dosage into the cold before also need to carry out a thorough watering. By November, continue to cover against the cold to ensure that the seedlings are safe to overwinter. After 2-3 years of cultivation, blueberry seedlings will gradually grow into, usually have 3~5 branches, tree height above 80 cm, tree posture upright, is a high-quality blueberry seedlings, suitable for planting garden.
About how to grow berries in pots this aspect of knowledge Naturehydro has been on the site many times in detail, if you need to know more, you can look up the site of the relevant other content, this article focuses on the following is the ground planting of blueberries planting technology.
Blueberries are a one-time planting, multi-year harvest species, so the selection of the garden should be long-term thinking. First of all, the blueberry garden should choose to build in the well-drained, no shade on the flat or gently sloping ground. Mountain planting, it is best to choose in the shallow mountains, sunny slopes.
Garden soil, preferably sandy loam with good permeability, soil organic matter content of 12% to 15% between the most conducive to blueberry growth. When building the garden should also pay attention to, blueberry planting needs to have sufficient water. You can use surface pond water, reservoir water, or configure cisterns, machine wells and so on.
As blueberry growth is sensitive to salt, so the water quality of the garden irrigation water testing, water salt higher than one thousandth of the water can not be used.
1.Land Preparation and Fertilization
(1) Choose to build a garden in a place with a slope of no more than 10°, and then apply 20 cubic meters of charcoal soil and 7-10 cubic meters of rotted cow dung per mu.
(2) After fertilization, turn the soil 30 cm deep, then clean up the rocks, grass roots, hardwood blocks and other debris, then level the land and dig a drainage ditch.
2.Timely Planting
Blueberry planting is divided into spring planting and fall planting, spring planting must be completed before the sapling sprouting. In fall planting, it should be started after the sapling has been dormant. Planting, planting holes on the ridge, planting hole length, width, depth of 40 cm, hole spacing of about 1 meter. In plots where the soil is sticky, the holes are filled with three-quarters of rotted organic matter, which can be pine needles, wood chips, rice hulls and so on. And add about 1 kg of organic fertilizer and about 30 grams of nitrogen-phosphorus-potassium compound fertilizer as the bottom fertilizer.
In plots with high sand content, the same volume of charcoal soil should be put in to replace the organic matter, and the charcoal soil can neutralize the soil sandiness and increase the soil organic matter content. Mix the various fillers in the hole with the original soil, after which the blueberry seedlings are placed in the planting hole, seedlings with soil lump planting is the best. Pay attention to let the root system to keep spreading, pay attention to lifting seedlings, avoid nesting roots, bury the soil until the root stem and the ground surface flush, and then step on the topsoil, and make a good tree tray. After planting, water thoroughly to set the roots. Note that the next day to make up another watering, to ensure that the planting hole in the soil water evenly penetrated. The planting density is generally about 330 plants per mu.
(1) Planting time
① If the planting place is dry after winter, it can be planted before the rainy season, or vice versa in the fall to early spring before the sprouting of planting.
② If the irrigation conditions of the planting site is good, it can be planted throughout the year.
(2) Digging a planting hole
The size of the planting hole should be 0.5m×0.5m, and after digging, the organic matter should be mixed with the soil and then backfilled into the hole.
(3) Planting distance
① planting dwarf bush blueberry, row spacing of 0.5 meters × 1 meter is appropriate.
② planting half-high bush blueberry, plant spacing of 1 meter × 2 meters.
③ planting highbush blueberry, plant spacing of 0.6-1.5 meters × 2-2.5 meters is appropriate.
(4) Configure pollination trees
① planting dwarf blueberry varieties can be directly with a single variety of gardening, planting highbush blueberry need to configure pollination tree.
② Configuration of pollination tree is conducive to improve the fruiting rate, increase the weight of a single fruit, but also to a certain extent to improve the yield and quality.
③ Configuration of pollination tree ratio of 1:1 or 2:1. 1:1 for the main varieties and pollination varieties every 1-2 rows of equal planting, 2:1 for the planting of the main varieties, every 2 rows and then planted 1 line of pollination trees.
(5) Planting method
① suitable for planting objects for 2-3 years old strong seedlings, can also be planted 1 year-old rooted seedlings, but the survival rate of such seedlings is low, after planting to carry out fine management.
② planting seedlings from the nutrient bowl, if the bowl has been full of roots, you can break the soil on the root system and then planting, or directly planting.
③ Planting depth should be appropriate to ensure that the original seedling soil mass can be covered to about 3 cm. After planting to fill the soil, and gently step on the soil, and finally watered.
3.Water and Fertilizer Management
(1) Use acidic water as irrigation water, watering every 3-5 days.
(2) Mainly apply nitrogen, phosphorus and potassium fertilizers, the fertilizer ratio is 1:1:1. nitrate nitrogen fertilizer, ammonium chloride and other chlorine-containing fertilizers should not be applied.
4.Timely Pruning
(1) young trees
①The main work of young trees is to cultivate the tree to reduce nutrient consumption, such as pruning weak branches, erasing flower buds and so on.
② After entering the growth period, when the branch length reaches 40 cm, the new shoots should be plucked, which is conducive to increasing the number of lateral branch sprouting, rapid expansion of the crown.
(2) Adult trees
①Pluck the elongated branches and sprouting branches (when the length reaches 40 cm) during the growing season. For 3-4 year old fruit trees, remove the lower weak branches and crowded branches in the middle of the crown.
② If the plant growth time is more than 5 years, but the plant growth is average, it is necessary to retract the main branch in time, that is, cut from the base of the main branch, or according to the specific varieties to determine the pruning intensity.
5.Configuration Pollination Tree
Blueberry is self-pollinating plants, but the configuration of pollination trees can improve fruit quality and yield. Pollination trees are usually selected from blueberry varieties with strong productivity, good taste and similar or slightly early flowering period with the main plant varieties. The configuration ratio of main plant variety and pollination tree variety is about 5:1. when planting, pollination tree should be evenly distributed in the garden.
6.Post Planting Management
Blueberry seedlings after planting about two weeks for the slow period, this period, water management is to improve the survival rate and promote the growth of blueberry seedlings is the most important factor, to small water watering, keep the soil moist. Soil relative humidity of about 60% is good. After planting in the fall, young blueberry trees should be winterized before freezing. The Dalian area usually has to be well protected from cold by November. The method of direct burial can be used.
When operating, bury the soil along the ridge. First, on one side of each blueberry bush, horizontally cultivate a soil pillow about 10 centimeters high. Then the branches of the blueberry bush together, according to the direction of the ridge, to the soil pillow bent down, and then covered with soil, generally 13-15 cm thick soil layer is good. Ensure that the young blueberry trees are not frozen, safe overwintering.
7.Pest Control
(1) When there are leaf pests such as large silkworm moths, moths, poisonous moths, etc., we can use lights at night to trap and kill the adult worms.
(2) When there are branch pests such as heart-eating bugs and aspens, the holes can be plugged with medicated cotton, which can kill the larvae.
(3) When adult fruit flies and golden turtles appear, they can be trapped with sugar and vinegar solution from mid- to late-April to mid-August.
(4) If the planting place is located in the forest area, it is necessary to avoid blueberries being pecked by birds.
8. Timely Picking
(1) In general, blueberries will be ripe in June-August, most of its surface is blue-black after ripening, and can be picked in batches at this time.
(2) Picking time in the evening is appropriate, high temperature days, rainy days, fruit surface water can not be picked.
(3) Blueberries used for fresh food should be picked artificially, blueberries used for processing can be picked mechanically, picking every 2-3 days during the fruiting period, picking every 3-4 days during the beginning and the end of the fruiting period.
Planting conditions
(1) The soil is loose and aerated, with good drainage, PH value of 4-5.5, organic matter content of 8-12%, and sufficient water source near the planting site.
(2) In case of unsatisfactory PH value, sulfur powder can be sprinkled to regulate it (the maintenance effect can be more than 3 years). If the soil’s PH is too high, blueberries will be prone to poor growth, decreased yield or even plant death.
(3) Blueberries are sensitive to water. During planting, river water, groundwater and reservoir water can be used as irrigation water, and the salinity of water should be high.
(4) 1 year before planting, should be combined with the pressure of green manure work will be 20-25 cm of soil deep turning, more weeds can be applied in advance to weed control, if the soil type does not meet the conditions, the need to improve the soil, to ensure that blueberries can grow normally.
Young Tree Management
In the spring of the second year of planting, when the earth is basically thawed, it can be removed to prevent cold. This is followed by cultivation of the soil and bedding of the tree’s roots. The main task after removing the cold protection is to prune the young blueberry trees. Cut off injured, horizontal, weak branches. Remove all the flower buds that are formed, and try not to let them bear fruit. Another important aspect of young tree management is organic mulching. “Organic mulching can effectively inhibit the growth of weeds in the garden, increase the content of soil organic matter, maintain soil moisture, and in the cool summer season, it can also reduce the ground temperature. It is an essential technical point to ensure high and stable blueberry production.”
Mulch can be made from corn stalks, sawdust, pine needles, and rice hulls. Growers can use local materials. Generally, the thickness of the mulch is kept at about 10 centimeters, and as the organic matter decays, it will continue to be added every year thereafter. The young tree period of blueberries refers to the period from the blueberry planting to can be picked before, if managed properly, usually for a year, the central task of the young tree period is to raise the tree. Young blueberry trees are in the vigorous growth stage, the relative humidity of the soil should be controlled at about 60%.
In late May, fertilizer can be applied in order to strengthen the growth of young blueberry trees. Condition, it is best according to the soil nutrient element measurement results of scientific fertilization. Normal growth of blueberries need the full nitrogen content of the soil is 0.1-0.2%, below the content, can be applied at a dosage of 50-100 grams of ammonium sulfate per plant. Above this content, the same amount of potassium dihydrogen phosphate can be applied. At a distance of 20 cm from the tree, dig a 20 cm deep hole and cover the soil after application.
Summer pruning of young blueberry trees is usually carried out before mid-July. This summer pruning is very important, as it determines the yield for the coming year and the long-term overall growth of the blueberry tree in the future. When pruning, the first step is to standardize the specific tree shape, generally retaining 5 to 8 main branches, and short cutting individual strong branches to encourage more branching. It is necessary to thin out the horizontal branches, sickly branches, and overcrowded branches at the base of young trees to maximize the canopy and maintain the tree’s strength, which is more conducive to improving future yields.
In order to ensure the supply of nutrients, before the end of July to appropriate fertilizer. Generally in 20-30 cm from the tree to dig 20 cm deep hole, can be applied to the amount of 1 ~ 2 kg per plant of rotted organic fertilizer, mulching after application. Over the next few months, blueberry bushes will grow significantly. When the weather becomes cold, the method of burying the soil is still used to protect against the cold.
Fruiting Management
After winter and spring, after removing the cold protection, the blueberry trees in the third year of planting will bloom and bear fruit in large quantities, which also enters the fruiting period management of blueberry trees. Blueberry trees in the spring pruning, according to varieties and tree potential to determine its load, and then cut off excess flower buds, while thinning out the defective branches, weak branches, overcrowded branches, appropriate short-cutting of prosperous branches.
After spring pruning, the application of bud promotion and flower promotion fertilizer, according to the dosage of 1 kg per plant, applying rotted organic fertilizer, more shallow furrow application, mulching after application. Generally at the beginning of May, the blueberry garden on the flowers.
In order to ensure that the planting of the pollination rate and fruit quality, in addition to a reasonable configuration of pollination trees, placed in the garden beehives, is also a good way to assist pollination. General can be placed in a box per 1.5 acres.
Growing blueberries is becoming increasingly popular, especially using plastic pots and other containers. Blueberries belong to the Rhododendron family and grow luxuriantly as perennial shrubs from 40 cm to 240 cm in height, depending on the variety. Growing blueberries in containers, such as in pots or in larger containers, provides a controlled environment that supports the plant’s shallow, fibrous root system. An important aspect of container gardening is to ensure that potted plants have adequate drainage, which helps to maintain optimal humidity levels and prevents waterlogging, which is essential for healthy blueberry growth.
Blueberries have oval-shaped leaves and creamy white or pink flowers that bloom for 7 to 15 days. Blueberries depend on a soil environment rich in organic matter for their fruiting period, usually with a pH between 4.5 and 5.5, which is easier to manage in a planter. The use of planters also allows growers to adjust soil composition as needed, which benefits plant health and fruit production.
Blueberry nurseries often grow commercial seedlings in pots before transplanting them into larger nursery containers. This phased growth approach allows for efficient use of space and resources. When growing blueberries in containers, gardeners can replicate the loose, organic-rich soil preferred by blueberries and use fertilizers and soil amendments that closely match the plant’s needs. In addition, containers make it easier to control watering, which is critical to maintaining proper soil moisture levels for blueberries, especially during warmer months when blueberries may go dormant above 30 degrees Celsius.
As blueberries are sensitive to both high salinity and poor drainage, choosing well-drained plastic pots for planting ensures that the roots receive plenty of oxygen. Potting mixes containing organic materials such as pine needles or rice hulls will also improve drainage and aeration, helping blueberry plants establish a strong root system.
To maximize growth, pots should be placed in full sun, away from cold and wind-prone areas. Over time, these strategies for growing blueberries in pots can lead to healthier plants and higher yields, as the container setup provides a customized, protective environment for blueberries, which is critical to their long-term success and yield.In the blueberry nursery process, growers often start by purchasing pot-bound commercial seedlings. To improve upfront land utilization and reduce inputs, growers will transplant these potting seedlings into their own nursery plots first, and then plant them after they have developed into large seedlings. Transplanting of seedlings is usually done in the spring after the soil has thawed, and Nursery pots, Plastic planters, or Round nursery pots can be used for transplanting.A suitable nursery site should be a loamy plot with a sunny backdrop, loose soil, and good soil fertility. About 2,000 kg of well-decomposed organic fertilizer should be applied to each mu of land, followed by rotary plowing, leveling, and opening furrows 25-30 cm apart in rows, with a depth of about 15 cm, and sprinkling an appropriate amount of insecticide into the furrows to prevent underground pests. Next, take the blueberry potting seedlings out of the container (can be Plastic nursery plant pots or Seedling starter pots), transplant them into the field at a spacing of about 20 cm, planting depth of about 1-2 cm below the surface at the base of the stem, and 8,000 to 10,000 plants can be transplanted per acre, and water them thoroughly immediately after planting.In spring and summer, transplanted blueberry seedlings need special attention to weeding, manual weeding is recommended to avoid the use of herbicides. Fertilizer can be applied at the end of June with about 10 grams of ammonium sulfate per plant and watering. Seedlings should also be pruned at the end of summer and beginning of fall, cutting off 20 cm or more of the seedling to promote branching. Before entering the winter, blueberry seedlings transplanted in the open ground need to be protected from the cold, usually using film or grass curtain cover and other methods.To the next spring, with the growth of seedlings, the need for interplanting transplanting, transplanting a reasonable density of 2000 to 3000 plants per mu, and pruning of seedlings again. Pruning in the seedling height of about 40 centimeters to promote tree branching, while timely removal of weak branches, pruning work is best completed before May. Spring and autumn fertilization is also crucial, spring can choose ammonium sulfate or potassium sulfate compound fertilizer, the amount of 10 to 20 grams per plant, shallow furrow into the mulch and watering.Autumn fertilizer can be used to choose rotted farmyard manure, to 2000 ~ 3000 kg per acre of dosage into the cold before also need to carry out a thorough watering. By November, continue to cover against the cold to ensure that the seedlings are safe to overwinter. After 2-3 years of cultivation, blueberry seedlings will gradually grow into, usually have 3~5 branches, tree height above 80 cm, tree posture upright, is a high-quality blueberry seedlings, suitable for planting garden.About how to grow berries in pots this aspect of knowledge Naturehydro has been on the site many times in detail, if you need to know more, you can look up the site of the relevant other content, this article focuses on the following is the ground planting of blueberries planting technology.Blueberries are a one-time planting, multi-year harvest species, so the selection of the garden should be long-term thinking. First of all, the blueberry garden should choose to build in the well-drained, no shade on the flat or gently sloping ground. Mountain planting, it is best to choose in the shallow mountains, sunny slopes.Garden soil, preferably sandy loam with good permeability, soil organic matter content of 12% to 15% between the most conducive to blueberry growth. When building the garden should also pay attention to, blueberry planting needs to have sufficient water. You can use surface pond water, reservoir water, or configure cisterns, machine wells and so on.As blueberry growth is sensitive to salt, so the water quality of the garden irrigation water testing, water salt higher than one thousandth of the water can not be used.1、Land preparation and fertilization(1) Choose to build a garden in a place with a slope of no more than 10°, and then apply 20 cubic meters of charcoal soil and 7-10 cubic meters of rotted cow dung per mu.(2) After fertilization, turn the soil 30 cm deep, then clean up the rocks, grass roots, hardwood blocks and other debris, then level the land and dig a drainage ditch.2、Timely plantingBlueberry planting is divided into spring planting and fall planting, spring planting must be completed before the sapling sprouting. In fall planting, it should be started after the sapling has been dormant. Planting, planting holes on the ridge, planting hole length, width, depth of 40 cm, hole spacing of about 1 meter. In plots where the soil is sticky, the holes are filled with three-quarters of rotted organic matter, which can be pine needles, wood chips, rice hulls and so on. And add about 1 kg of organic fertilizer and about 30 grams of nitrogen-phosphorus-potassium compound fertilizer as the bottom fertilizer.In plots with high sand content, the same volume of charcoal soil should be put in to replace the organic matter, and the charcoal soil can neutralize the soil sandiness and increase the soil organic matter content. Mix the various fillers in the hole with the original soil, after which the blueberry seedlings are placed in the planting hole, seedlings with soil lump planting is the best. Pay attention to let the root system to keep spreading, pay attention to lifting seedlings, avoid nesting roots, bury the soil until the root stem and the ground surface flush, and then step on the topsoil, and make a good tree tray. After planting, water thoroughly to set the roots. Note that the next day to make up another watering, to ensure that the planting hole in the soil water evenly penetrated. The planting density is generally about 330 plants per mu.(1) Planting time① If the planting place is dry after winter, it can be planted before the rainy season, or vice versa in the fall to early spring before the sprouting of planting.② If the irrigation conditions of the planting site is good, it can be planted throughout the year.(2) Digging a planting holeThe size of the planting hole should be 0.5m×0.5m, and after digging, the organic matter should be mixed with the soil and then backfilled into the hole.(3) Planting distance① planting dwarf bush blueberry, row spacing of 0.5 meters × 1 meter is appropriate.② planting half-high bush blueberry, plant spacing of 1 meter × 2 meters.③ planting highbush blueberry, plant spacing of 0.6-1.5 meters × 2-2.5 meters is appropriate.(4) Configure pollination trees① planting dwarf blueberry varieties can be directly with a single variety of gardening, planting highbush blueberry need to configure pollination tree.② Configuration of pollination tree is conducive to improve the fruiting rate, increase the weight of a single fruit, but also to a certain extent to improve the yield and quality.③ Configuration of pollination tree ratio of 1:1 or 2:1. 1:1 for the main varieties and pollination varieties every 1-2 rows of equal planting, 2:1 for the planting of the main varieties, every 2 rows and then planted 1 line of pollination trees.(5) Planting method① suitable for planting objects for 2-3 years old strong seedlings, can also be planted 1 year-old rooted seedlings, but the survival rate of such seedlings is low, after planting to carry out fine management.② planting seedlings from the nutrient bowl, if the bowl has been full of roots, you can break the soil on the root system and then planting, or directly planting.③ Planting depth should be appropriate to ensure that the original seedling soil mass can be covered to about 3 cm. After planting to fill the soil, and gently step on the soil, and finally watered.3, water and fertilizer management(1) Use acidic water as irrigation water, watering every 3-5 days.(2) Mainly apply nitrogen, phosphorus and potassium fertilizers, the fertilizer ratio is 1:1:1. nitrate nitrogen fertilizer, ammonium chloride and other chlorine-containing fertilizers should not be applied.4, timely pruning(1) young trees①The main work of young trees is to cultivate the tree to reduce nutrient consumption, such as pruning weak branches, erasing flower buds and so on.② After entering the growth period, when the branch length reaches 40 cm, the new shoots should be plucked, which is conducive to increasing the number of lateral branch sprouting, rapid expansion of the crown.(2) Adult trees①Pluck the elongated branches and sprouting branches (when the length reaches 40 cm) during the growing season. For 3-4 year old fruit trees, remove the lower weak branches and crowded branches in the middle of the crown.② If the plant growth time is more than 5 years, but the plant growth is average, it is necessary to retract the main branch in time, that is, cut from the base of the main branch, or according to the specific varieties to determine the pruning intensity.5, configuration pollination treeBlueberry is self-pollinating plants, but the configuration of pollination trees can improve fruit quality and yield. Pollination trees are usually selected from blueberry varieties with strong productivity, good taste and similar or slightly early flowering period with the main plant varieties. The configuration ratio of main plant variety and pollination tree variety is about 5:1. when planting, pollination tree should be evenly distributed in the garden.6、Post planting managementBlueberry seedlings after planting about two weeks for the slow period, this period, water management is to improve the survival rate and promote the growth of blueberry seedlings is the most important factor, to small water watering, keep the soil moist. Soil relative humidity of about 60% is good. After planting in the fall, young blueberry trees should be winterized before freezing. The Dalian area usually has to be well protected from cold by November. The method of direct burial can be used.When operating, bury the soil along the ridge. First, on one side of each blueberry bush, horizontally cultivate a soil pillow about 10 centimeters high. Then the branches of the blueberry bush together, according to the direction of the ridge, to the soil pillow bent down, and then covered with soil, generally 13-15 cm thick soil layer is good. Ensure that the young blueberry trees are not frozen, safe overwintering.7、Pest control(1) When there are leaf pests such as large silkworm moths, moths, poisonous moths, etc., we can use lights at night to trap and kill the adult worms.(2) When there are branch pests such as heart-eating bugs and aspens, the holes can be plugged with medicated cotton, which can kill the larvae.(3) When adult fruit flies and golden turtles appear, they can be trapped with sugar and vinegar solution from mid- to late-April to mid-August.(4) If the planting place is located in the forest area, it is necessary to avoid blueberries being pecked by birds.8. Timely picking(1) In general, blueberries will be ripe in June-August, most of its surface is blue-black after ripening, and can be picked in batches at this time.(2) Picking time in the evening is appropriate, high temperature days, rainy days, fruit surface water can not be picked.(3) Blueberries used for fresh food should be picked artificially, blueberries used for processing can be picked mechanically, picking every 2-3 days during the fruiting period, picking every 3-4 days during the beginning and the end of the fruiting period.Planting conditions(1) The soil is loose and aerated, with good drainage, PH value of 4-5.5, organic matter content of 8-12%, and sufficient water source near the planting site.(2) In case of unsatisfactory PH value, sulfur powder can be sprinkled to regulate it (the maintenance effect can be more than 3 years). If the soil’s PH is too high, blueberries will be prone to poor growth, decreased yield or even plant death.(3) Blueberries are sensitive to water. During planting, river water, groundwater and reservoir water can be used as irrigation water, and the salinity of water should be high.(4) 1 year before planting, should be combined with the pressure of green manure work will be 20-25 cm of soil deep turning, more weeds can be applied in advance to weed control, if the soil type does not meet the conditions, the need to improve the soil, to ensure that blueberries can grow normally.Young tree managementIn the spring of the second year of planting, when the earth is basically thawed, it can be removed to prevent cold. This is followed by cultivation of the soil and bedding of the tree’s roots. The main task after removing the cold protection is to prune the young blueberry trees. Cut off injured, horizontal, weak branches. Remove all the flower buds that are formed, and try not to let them bear fruit. Another important aspect of young tree management is organic mulching. “Organic mulching can effectively inhibit the growth of weeds in the garden, increase the content of soil organic matter, maintain soil moisture, and in the cool summer season, it can also reduce the ground temperature. It is an essential technical point to ensure high and stable blueberry production.”Mulch can be made from corn stalks, sawdust, pine needles, and rice hulls. Growers can use local materials. Generally, the thickness of the mulch is kept at about 10 centimeters, and as the organic matter decays, it will continue to be added every year thereafter. The young tree period of blueberries refers to the period from the blueberry planting to can be picked before, if managed properly, usually for a year, the central task of the young tree period is to raise the tree. Young blueberry trees are in the vigorous growth stage, the relative humidity of the soil should be controlled at about 60%.In late May, fertilizer can be applied in order to strengthen the growth of young blueberry trees. Condition, it is best according to the soil nutrient element measurement results of scientific fertilization. Normal growth of blueberries need the full nitrogen content of the soil is 0.1-0.2%, below the content, can be applied at a dosage of 50-100 grams of ammonium sulfate per plant. Above this content, the same amount of potassium dihydrogen phosphate can be applied. At a distance of 20 cm from the tree, dig a 20 cm deep hole and cover the soil after application.Summer pruning of young blueberry trees is usually carried out before mid-July. This summer pruning is very important, as it determines the yield for the coming year and the long-term overall growth of the blueberry tree in the future. When pruning, the first step is to standardize the specific tree shape, generally retaining 5 to 8 main branches, and short cutting individual strong branches to encourage more branching. It is necessary to thin out the horizontal branches, sickly branches, and overcrowded branches at the base of young trees to maximize the canopy and maintain the tree’s strength, which is more conducive to improving future yields.In order to ensure the supply of nutrients, before the end of July to appropriate fertilizer. Generally in 20-30 cm from the tree to dig 20 cm deep hole, can be applied to the amount of 1 ~ 2 kg per plant of rotted organic fertilizer, mulching after application. Over the next few months, blueberry bushes will grow significantly. When the weather becomes cold, the method of burying the soil is still used to protect against the cold.Fruiting managementAfter winter and spring, after removing the cold protection, the blueberry trees in the third year of planting will bloom and bear fruit in large quantities, which also enters the fruiting period management of blueberry trees. Blueberry trees in the spring pruning, according to varieties and tree potential to determine its load, and then cut off excess flower buds, while thinning out the defective branches, weak branches, overcrowded branches, appropriate short-cutting of prosperous branches.After spring pruning, the application of bud promotion and flower promotion fertilizer, according to the dosage of 1 kg per plant, applying rotted organic fertilizer, more shallow furrow application, mulching after application. Generally at the beginning of May, the blueberry garden on the flowers.In order to ensure that the planting of the pollination rate and fruit quality, in addition to a reasonable configuration of pollination trees, placed in the garden beehives, is also a good way to assist pollination. General can be placed in a box per 1.5 acres.
Post time: Nov-04-2024