July is the young fruit period and fruit expansion period of sweet persimmon. For the sweet persimmon, the management of this period is very important. The author consulted Zhang Zhicheng, a fruit expert and senior engineer of Northwest A&F University on the summer management technology of sweet persimmon. He reminded the fruit farmers that the sweet persimmon summer tube needs to pay attention to the following four points:
After the fruit-fruit sweet persimmon ends the physiological fruit drop from June to July, the healthy young fruit with no pests and diseases is selected according to the ratio of 20 to 25 leaves and one fruit.
Ring stripping For adult fruit trees, a circular stripping is performed in summer. The method is to cut a 2 to 3 mm wide strip with a sharp knife and use a knife tip to gently cut it, but not to damage the xylem, then gently pick up and peel off the narrow bark with the tip of the knife. The purpose of the ring peeling is to prevent the nutrient-carbohydrate produced by the persimmon leaves during photosynthesis from being transported to the roots.
Weeding and weeding according to weed growth, weeding and weeding 2 to 3 times. When the drought is from July to August, it is necessary to irrigate the drought in time. Any persimmon garden that has not been intercropped should be fully covered with grass to protect the fattening.
Topdressing from June to July is the peak season for persimmon tree growth, and the growth ability of roots and shoots is strong. For saplings, the amount of fertilizer applied per plant is 20 g of pure nitrogen, 10 g of superphosphate, and 20 g of potassium chloride. The adult fruit yield per mu is 4 kg of pure nitrogen, 4 kg of superphosphate and 4 kg of potassium chloride. Generally, on the cloudy or sunny day before 9 am and after 5 pm, the above three kinds of fertilizers are applied and then filled with soil.
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