Fruit leaf surface spraying technology

Foliar spray fertilizer, also known as root dressing, is a kind of fertilization measure that can not be ignored in fruit tree production. This method saves labor, labor, and quick results, and has high utilization rate. Fruit trees such as apples, pears, hawthorns, etc., can increase the fruit setting rate during flowering period; the growth period can promote fruit enlargement and increase the content of chlorophyll.
The types and concentrations of suitable foliar spray fertilizers are: (1) Urea has urea and the concentration is 0.3%. (2) Phosphate fertilizer has ammonium phosphate and potassium phosphate, and the concentration is 0.5-1%. (3) Potassium fertilizer has potassium chloride and potassium sulfate, and the concentration is 1%.
Foliar spray application period: It can be used from the beginning of the fruit tree to the leaf before it stops growing.
The method of use is as follows: the fertilizer can be directly added with water according to the required concentration, and then sprayed after being dissolved. The jet should be avoided at noon with strong sunlight, from 8:00 am to 11:00 pm, from 2 pm to 6:30 pm. When spraying, focus on the back of the sprayed surface, because the back of the leaves has less horniness and is easy to absorb. The number of sprays is usually sprayed once every 10-15 days. It can be combined with spraying pesticides, and the fertilizer is sprayed together in the pesticide.
The type of fertilizer can be determined according to the nutritional status of the tree and the amount of fruit. The results are many, consume more nutrients, can be sprayed with nitrogen fertilizer to supplement nutrition, can significantly enhance the next year's flower yield, improve the fruit yield and quality of the year; Wangshu, saplings have no output in the current year, should spray phosphorus, potassium fertilizer, promote The formation of flower buds, in order to achieve early results, the purpose of early yield.

Author: Liu Xiuling
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