Key points of postharvest management of pomegranate

The fruit harvested with base fertilizer in autumn is treated with appropriate amount of base fertilizer, mainly organic fertilizer, and can be mixed with appropriate amount of phosphorus and potassium fertilizer. The effect of fertilization in radiation ditch is better, the depth of fertilizer ditch is 30-50 cm, the width is about 40 cm, and the length and number of strips depend on the specific situation.

Plastic pruning and winter shearing are mainly thinning and long shearing. Thinning the excess whorled branches, cross branches and overdense drooping branches, disease and insect branches, dead branches and so on in the canopy, so as to balance the tree potential and improve the ventilation and light transmission conditions. The culture result branch group filled the inner chamber and enlarged the fruit area. For the branches with serious outward movement of the result position, choose the appropriate position to retract. The mixed buds of pomegranate are all born at the top or near the top of the sturdy short branches. The short branches and fruiting mother branches should be kept long and should not be cut short.

Cultivate soil to prevent cold and low temperature in winter is easy to freeze the neck of pomegranate. It is necessary to cultivate soil on the neck of pomegranate before freezing on the soil, with a thickness of about 20 cm. It is required that the soil should be moist and loose, and the soil should be taken at a certain distance from the root to prevent root injury. Remove and cultivate the soil in time after thawing in spring to prevent a large number of root tillers from sprouting.

Irrigation and sealing frozen water can help trees survive the winter safely and prevent spring drought, and can eliminate some overwintering pests. It is appropriate to irrigate the soil before freezing. Loosen the soil and preserve soil moisture in time after winter irrigation to prevent soil consolidation.

Prevention of diseases and insect pests in autumn and winter include aphids, peach borer, red spiders, dry rot, brown spot and so on. Should cut off the disease, insect, fruit and diseased branches, scrape off the skin of the old warbler, remove the fallen leaves from the tree, and bury them thoroughly or burn them centrally.