Don't relax the postharvest management of cherries
Cherry postharvest management do not relax in May-June, cherry berries will be ripe and on the market. Fruit harvest is a turning point in the annual growth and development cycle of fruit trees. The following five points should be paid attention to in the management of fruit trees after cherry picking. Loose twisting. Disease and insect branches, drooping branches, overdense branches and long branches can be removed from the base. Twisting shoots can be carried out for more prosperous growth, especially those born on the back. Fertilize and water. Each plant was treated with 50 kg of human feces and urine or 3-4 kg of bean cake water and 0.6-1 kg of urea. Dig 6-8 radiation trenches 1 meter from the tree trunk. The ditch is 20-30 cm deep, 40-50 cm wide and reaches the outer edge of the crown. After putting the fertilizer into the ditch, cover the soil and water it. Drainage in time during the rainy season. When the soil is too wet, ploughing and drying should be carried out to enhance the air permeability of the soil. Ploughing and loosening the soil. Before the fruit-picking fertilizer was applied in June and July and the best part of the rainy season came, the whole garden was ploughed and loosened at a depth of about 10 centimeters. After defoliation, combined with autumn application of base fertilizer, deeper ploughing was carried out between the rows. The tree plate is covered with grass. After the fruit is harvested, the barnyard manure, withered grass, fallen leaves, straw and other materials will be laid in the tree plate. Prevent diseases and insects. Dendrolimus punctatus, peach leaf moth and other harmful leaves, can spray 20% permethrin EC 3000 times, 25% deltamethrin 3000 times. Leaf perforation is the main disease of cherry trees, which mostly occurs in autumn. 0.3-0.5 degree stone sulfur mixture or 200 times Bordeaux solution can be sprayed in July and August.
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Key techniques of Postharvest Management and Summer pruning of Cherry
In order to promote flower bud differentiation and prevent excessive vegetative growth, new shoot coring should be controlled. That is, to pick the coring of the new shoots that have not stopped growing, the position of the coring is generally bounded by the half leaf; after the coring stops for 10 to 15 days, the second shoot will be sent out, and the second coring will be carried out when it grows to 15 centimeters.
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Four measures to promote blossom of sweet cherry
First, spray paclobutrazol. In order to ensure sufficient flower buds every year, 500-1000 mg / kg paclobutrazol should be sprayed on the canopy from mid-June to early July, once every 10-15 days, 1-3 times continuously, to inhibit vegetative growth (moderate trees 1-2 times, vigorous trees 2-3 times, crown branches.
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