The skillful application of foliar fertilized grape leaf fertilization is also called spray fertilizer, which is sprayed on the leaf back. The shoot shoots and young fruit can also be sprayed properly, and can be carried out during the whole growth period after summer. Spraying in the evening without wind and rain is best, or between 8 am and 10 am. It is usually sprayed once every 10 to 15 days, from 2 to 4 times in a row .
Fertilization should be carried out 10 days after the application of strong fruit and fertilizer, or when the fruit has the size of mung bean. 500 g of compound fertilizer was applied to each ditch , and the soil was covered with water after application. This is a key fertilizer that promotes the expansion of young fruit and the growth of shoots and must be applied on time.
After harvesting and harvesting grape, the nitrogen fertilizer should be replenished in time to enhance the function of the leaves, prolong the life of the leaves, increase the nutrient storage of the trees, and apply nitrogen and post-harvest nitrogen after harvesting. Better results. Spray 0.4% urea solution, and apply 4 kg of urea per 667 square meters .
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