Foliar spray fertilizer to save time and effort

Foliar spray fertilizer, also called root dressing, is a fertilization measure that cannot be ignored in the production of fruit trees. This method saves labor and effort, and has quick results and high utilization rate. It can absorb 80% of the fertilizer in 24 hours. Apple, pear, hawthorn and other fruit trees in the flowering period can increase the fruit setting rate, spraying leaves and fruit during the growth period can promote fruit enlargement, increase the content of chlorophyll.

First, the type and concentration of foliar spray fertilizer. 1. Nitrogen fertilizer is urea and the use concentration is 0.3%. 2. The use concentration of ammonium nitrate and ammonium sulfate is 0.2%. 3, phosphate fertilizer ammonium phosphate, potassium phosphate, the use of concentrations are 0.5% to 1%. 4. Potassium fertilizers include potassium chloride and potassium nitrate, with a concentration of 1%.

Second, foliar spray fertilizer time. It can be used from the fruit tree to the leaves before the leaves stop growing.

Third, the use of methods. Fertilizer can be added directly to water at the required concentration and sprayed after being dissolved. When spraying, avoid sunlight at noon, usually from 8 a.m. to 11 p.m. and from 2 p.m. to 6 p.m. At noon the temperature is high, the fertilizer evaporates quickly, the spray fertilizer is not effective, and it is easy to burn the leaves and fruits. When spraying, it is necessary to focus on the backside of the spray blade. Since the back surface of the leaves is less horny, it is easy to absorb. Spray once every 10 to 15 days, can be combined with spray pesticides at the same time, the fertilizer will be sprayed together in pesticides.

The type of spray fertilizer can be based on the nutritional status of the tree and the size of the fruit. There are many fruits of the year, consume more nutrition, and can apply nitrogen fertilizer to supplement nutrition, so that it can significantly increase the amount of flowers in the next year and improve the fruit production and quality of the year. When Wangshu and young trees have no yield in the year, they should be sprayed with phosphate fertilizer and potash fertilizer to promote the formation of flower buds, thereby achieving the purpose of early results and high yields.

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