Chestnut should pay attention to supplement fertilizer after harvest

Chestnuts have a long fruiting period, a large amount of results, and consume more nutrients. Before and after fruit ripening, the tree vigor has been in a state of starvation and half hunger. It is very weak and unfavorable for flowering results in the second year. Fertilizers and supplementary nutrients can speed up tree-trending recovery and promote tree vigor, which will lay a good foundation for high-yield and stable production in the second year. Specific practices are as follows:

When the chestnut fruit turns brown, the pre-harvest fertilizer is mainly available as quick-acting fertilizer. The result is more than 50 kilograms of trees. Each plant applies 1.5-2 kilograms of urea and 0.5-1 kilogram of potassium chloride. After the rain, it is applied or added. Fresh water or brewing decomposed human and animal waste water 80-100 kg after the application. The post-harvest fertilizer is applied within 5-10 days after the fruit is harvested, mainly NPK fertilizer and high-quality organic fertilizer, and 2-3 kg of N, P, and K compound fertilizers are applied per plant to produce cooked man and animal poultry manure 25-30. Kilograms, around the canopy dripping line, dig deep and wide each 25-30 cm ring gutter, if the weather is dry, fertilize each tree after fertilization apply water or decompose human and animal manure water 80-100 kg to promote fertilizer dissolution And transformation, supply root absorption and utilization, improve the effect of fertilization. In addition, before and after fruit harvesting, foliar application of 3-5 times 0.1% magnesium sulfate, 0.3% urea, 0.5% potassium dihydrogen phosphate, once every 7-10 days. The supplement of nutrients from the leaves will help the flower buds to grow strong and strong and the resulting mother buds to differentiate.

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