Management Techniques After Persimmon Trees Bear Fruit
Timely fertilization: When the fruit reaches 4-5 cm in transverse diameter and when the fruit size has basically become fixed, apply fruit-swelling fertilizer and pre-harvest fertilizer, mainly with quick-acting, readily soluble nitrogen-phosphorus-potassium fertilizer. For bearing trees over five years old, apply 1.5-2 kg of urea and 0.75-1 kg of monopotassium phosphate per tree, or apply 1-1.5 kg of nitrogen-phosphorus-potassium compound fertilizer, broadcast after rain, or...
Timely fertilization: When the fruit reaches 4-5 cm in transverse diameter and when the fruit size has basically become fixed, apply fruit-swelling fertilizer and pre-harvest fertilizer, mainly with quick-acting, readily soluble nitrogen-phosphorus-potassium fertilizer. For bearing trees over five years old, apply 1.5-2 kg of urea and 0.75-1 kg of monopotassium phosphate per tree, or apply 1-1.5 kg of nitrogen-phosphorus-potassium compound fertilizer, broadcast after rain, or dilute with 60-80 kg of clean water and drench, or dilute with 40-60 kg of decomposed mature manure water and drench, or dig a ring-shaped ditch 20-30 cm deep and 20-30 cm wide around the drip line of the canopy and apply. Before fertilizing, all kinds of weeds on the tree plate must first be removed. After fertilizing, cover the tree plate with rice straw or other weeds, with a grass thickness of 3-5 cm, to improve the fertilization effect.
Disease and pest control: In the middle and late stages of fruit bearing of persimmon trees, the fruit is easily harmed by anthracnose and brown spot disease, causing a large number of fallen fruits, with the fruit surface covered with black spots. Therefore, when the fruit reaches 3-4 cm and 6-8 cm in transverse diameter, spray once each time with 800 times Shibingke aqueous solution, or 50% Sukeling wettable powder 1000 times solution. During the fruit ripening period, if there is damage by scale insects, then continuously spray 2-3 times with 800-1500 times Jiesijing aqueous solution, or 1000 times Supusha aqueous solution for control. During the autumn shoot sprouting period, when the new shoots just begin to sprout, unfold leaves, and turn green, spray once each time with a mixed solution of 800 times trichlorfon and 1000 times dichlorvos, to control various diseases and pests harming the new shoots.
Foliar topdressing: In the middle and late stages of fruit bearing of persimmon trees, every about 15 days, spray on the leaves once with 800 times Gaomeishi organic humic acid active liquid fertilizer, 1500 times enhanced Yunda-120 mixed solution, or 500 times plant vitality essence and 2500 times Yiwei yield-increasing bacteria mixed solution, or a mixed solution of 0.1% magnesium sulfate, 0.2% urea, 0.3% monopotassium phosphate, and 500 times Lüfeng 95, spraying 3-5 times continuously, evenly wetting all branches, leaves and fruits, until water droplets begin to drip.