Application of Controlled Release Fertilizers on Fruit Trees

The application of apple trees

Appropriate formula apple controlled release fertilizer ratio (N-P2O5-K2O) can choose 22-8-12, 18-9-18, 17-9-19, 21-5-16 and so on.

The application time is recommended to be applied in spring or autumn; or according to the release period of controlled-release fertilizer, the period of fertilizer application and interval time should be determined.

Application method for root fertilization, can be applied to acupuncture and furrow. Acupuncture points: digging inside the crown of the fruit tree, 20 to 30 cm deep, and about 30 cm in diameter, the controlled release fertilizer will be applied after the cover soil. Gully Application: Dig a radial or annular ditch about 1 meter away from the trunk of the fruit tree, about 20 to 30 centimeters deep, near the trunk slightly shallow, and the outside of the canopy is deeper, and then apply the controlled-release fertilizer to the cover soil.

The application amount is generally about 2.5 kg per tree in the fruit period, about 1.5 kg per tree in the initial result tree, and about 1.0 kg in the result tree.

Precautions The release of controlled-release fertilizer exclusively for apple is closely related to soil type, soil temperature, soil pH, soil microbial activity, soil moisture content, and irrigation water volume. It should be scientifically applied according to actual conditions when applied.

The application effect is strong, the chlorophyll content is increased, and the thick green leaves are thick; the single fruit weight of the fruit is increased and even, the result is more, the yield is increased; the color is bright, and the fruit sugar content, hardness, vitamin C content and aroma substance are effectively improved, and the quality is obviously improved.

The application of hawthorn

Appropriate formula Hawthorn tree special controlled release fertilizer ratio (N-P2O5-K2O) can choose 16-9-16,15-9-18,16-9-18 and so on.

The application time was applied one time before sprouting in the spring.

Application method Dig out 6 meters deep from the trunk at a depth of 20 to 40 centimeters and a width of 20 to 30 centimeters to the outer edge of the canopy. Fertilize the fertilizer and cover it with a layer of soil and mix it with water.

The application rate is about 50-60 kg of controlled-release fertilizer per 667 square meters.

Attentions When cutting fertilizing materials, part of the roots will be cut off occasionally. It is necessary to take care to prevent the roots from being damaged. During fertilization, the location of the trenches should be changed every year and the fertilization surface should be enlarged.

The application effect is strong, the chlorophyll content is increased, and the thick green leaves are thicker; the single fruit weight of the fruit is increased and even, the result is more, the yield is increased; the color is bright, and the sugar, hardness and vitamin C content of the fruit are effectively improved, and the quality is obviously improved.

Application of peach

The proportion of special controlled-release fertilizer (N-P2O5-K2O) for peach trees suitable for suitable formulations mainly includes 13-7-18, 19-7-12, 13-7-18 and so on.

Application time in the fall of 9 to 10 months fruit harvest application.

Application method Fertilization depth should be 30 ~ 40 cm, can be used ring groove, radial groove, strip groove method. When fertilizing the ring groove, dig a groove around the tree vertically below the edge of the canopy. The depth of the groove is 30 to 40 cm, and the width is 30 to 40 cm. The fertilizer is applied to the groove and the filling is smoothed. Radiating fertilization is to fertilize several radiation ravines on the periphery of the tree trunk along the trunk. Articles are applied on the east and west sides of the tree or on both sides of the tree. Fertilizers are used to open strips of furrows, and the position is changed every year to balance the fertility.

The application amount of fertilizer application is about 2.5 kg per tree.

Precautions Fertilization should fully consider the age of the tree. Because the fertilizers of different tree ages have a wide gap, the general young tree fertilization amount is 20~30% of the adult tree, and the 4~5 year old tree is 50~60% of the adult tree, more than 6 years old. The tree can be applied according to the amount of fertilizer applied in the full fruit period. The barren soil and hill slopes should be increased in fertilization. In fertile fields, the amount of fertilization should be reduced accordingly.

Effects of application Rhizome leaf growth was good, leafy and leafy, photosynthesis increased, fruit yield increased, soluble solids and soluble sugar content increased, the amount of titratable acid decreased.

Application of apricot and plum

Appropriate formula suitable for apricot tree controlled release fertilizer ratio (N-P2O5-K2O) mainly include 21-8-17, 21-5-16, etc., suitable for the special controlled-release fertilizer ratio of plum tree (N-P2O5-K2O) It mainly includes 20-6-16, 22-10-16, 20-8-17 and so on.

The application of controlled-release fertilizer in autumn (from September to October) combined with autumn ploughing and basal application.

Application methods Fertilization methods include radial furrows, annular furrows, etc. Generally, it is advisable to choose the application of radiation grooves, that is, to dig 4 to 8 pieces of 30 to 50 cm deep and 20 to 30 cm wide at different positions of the crown around the trunk. The radiation ring groove with the length depending on the size of the canopy, the shallow depth and the deep depth, will be mixed with fertilizer and soil to cover the ditch and water. Young trees can be combined with acorn expansion.

The application rate of controlled release fertilizer is about 0.6 kg per plant.

Precautions Plum has strong adaptability to soil, but it is still best to have deep fertile soil, strong water retention and fertility, and slightly acidic sandy loam with a pH of 6~6.5. In low-lying areas, it is not appropriate to build a garden so as to avoid cold air deposition, and the flowering period is affected by the late frost, so that the yield is unstable.

Effect of application The tree develops well, the flower buds form stably, the flower drop and fruit drop are reduced, the yield is improved, the fruit quality is good, the sugar content is high, the color is good, the result is extended, and the tree's resistance to the bad environment and diseases and pests is enhanced.

Application of pear trees

Properly formulated pear-specific controlled-release fertilizers (N-P2O5-K2O) can be selected from 16-7-16, 15-7-18, 16-7-16, and 15-7-18.

The application time was applied one time before sprouting in the spring.

Application method Dig out 6 meters deep from the trunk at a depth of 20 to 40 centimeters and a width of 20 to 30 centimeters to the outer edge of the canopy. Fertilize the fertilizer and cover it with a layer of soil and mix it with water.

The application rate is about 50-60 kg of controlled-release fertilizer per 667 square meters.

Attentions When cutting fertilizing materials, part of the roots will be cut off occasionally. It is necessary to take care to prevent the roots from being damaged. During fertilization, the location of the trenches should be changed every year and the fertilization surface should be enlarged.

The application effect is strong, the chlorophyll content is increased, and the thick green leaves are thicker; the single fruit weight of the fruit is increased and even, the result is more, the yield is increased; the color is bright, and the sugar, hardness and vitamin C content of the fruit are effectively improved, and the quality is obviously improved.

Application of vines

The appropriate controlled-release fertilizer (N-P2O5-K2O) suitable for the formulation includes 22-8-12, 18-9-18, 17-9-19, and 21-5-16.

The application time is recommended to be applied in summer and autumn; or according to the release period of controlled-release fertilizer, the period of fertilizer application and the interval time should be determined.

Application method for root fertilization, can be applied to the ditch. Gully application: Ditch the trunk 30 centimeters from the trunk, cover the exposed roots with soil first, and then apply the controlled release fertilizer to the cover soil. Note that the soil and fertilizer are blended.

Application rate In general, the fruit tree period is 60-80 kilograms per 667 square meters, and the initial result tree is 40-60 kilograms, but the result tree is 30 to 40 kilograms.

Precautions The release of controlled-release fertilizer exclusively for grapes is closely related to soil temperature, soil moisture content, and irrigation water volume. It should be used scientifically according to actual conditions when applied.

The application effect is strong and the chlorophyll content is increased; the flesh is hypertrophic, smooth and crispy, with moderate acidity and sweetness, the meat is soft and juicy, and the sugar content of the fruit can be increased; the fruit is full, the single grain weight is increased, the yield is increased; the commodity value is increased; and the resistance is increased Disease, resistance to storage and transport.

Application of cherry tree

The proportion of suitable controlled-release fertilizer for cherries (N-P2O5-K2O) suitable for the formulation includes 22-10-15, 16-10-20 and so on.

The application time was combined with the organic fertilizer before the winter, combined with deep-sweeping soil in the deep hole. Application method: fertilization depth should be 30 ~ 40 cm, can be used ring groove, radiation groove, strip groove method. When fertilizing the ring groove, dig a groove around the tree vertically below the edge of the canopy. The depth of the groove is 30 to 40 cm, and the width is 30 to 40 cm. The fertilizer is applied to the groove and the filling is smoothed. Radiating fertilization is to fertilize several radiation ravines on the periphery of the tree trunk along the trunk. Articles are applied on the east and west sides of the tree or on both sides of the tree. Fertilizers are used to open strips of furrows, and the position is changed every year to balance the fertility.

The application amount of fertilizer application is about 2.5 kg per tree.

Precautions Fertilization should fully consider the age of the tree. Because the fertilizers of different tree ages have a wide gap, the general young tree fertilization amount is 20~30% of the adult tree, and the 4~5 year old tree is 50~60% of the adult tree, more than 6 years old. The tree can be applied according to the amount of fertilizer applied in the full fruit period. The barren soil and hill slopes should be increased in fertilization. In fertile fields, the amount of fertilization should be reduced accordingly.

Effects of application Rhizome leaf growth was good, leafy and leafy, photosynthesis increased, fruit yield increased, soluble solids and soluble sugar content increased, the amount of titratable acid decreased.

Application of jujube

Suitable formulations for controlled-release fertilizer of jujube tree (N-P2O5-K2O) can be selected 21-12-17, 18-12-21 and so on.

The application time was applied as a base fertilizer before germination in the spring.

The application method generally adopts three kinds of annular groove, radial groove and alternate groove. Ring Groove Method: Dig 40-50 cm deep and 30-40 cm wide annular fertilization ditch along the circumference of the canopy, apply the fertilizer into the ditch, and fill the fertilization ditch in time. The radiation channeling method is to fertilize about 80 centimeters from the main trunk to the periphery of the canopy, and dig 6~8 shallow, deep shallow radiation channels with a depth of 24~45 cm. Alternating groove method: Dig deep fertilizing ditch with width of 40 cm and length of canopy on both sides of the canopy, and apply fertilization ditch in east-west and north-south alternately.

The application rate is about 48 kg of controlled release fertilizer per 667 square meters.

Precautions Jujube trees belong to deep-rooted crops. Fertilizers applied to the surface of the soil can be difficult to be absorbed. Only a certain depth of soil can be absorbed and used to function. Jujube tree absorption of nutrients, especially nutrients to absorb fertilizer mainly depends on the level of the root system, jujube tree horizontal root system is not strong branching ability, low density, cutting off the wound is not easy to occur after the new root, so when applying controlled release fertilizer should pay attention not to cut off the time when digging trenches The root of the tree.

The effect of the application of tall tree, strong branches, increased chlorophyll content, thick green leaves thicker; fruit weight increased, stable fruit set, increased yield; bright colors, effectively improve the fruit hardness and vitamin C content, quality improved significantly.

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