The advantages of apple leaf surface spray fertilizer are:
1. Distribution equilibrium is less affected by the growth center.
2. Fast speed, low dosage and high efficiency.
3, not subject to soil leaching and fixation, good effectiveness, supplemented with phosphorus and trace elements, etc., the effect is particularly obvious.
4. Improve leaf function, extend leaf life and increase nutrient storage.
The period of apple leaf surface spray fertilizer:
1. In the first half of the growing season, nitrogen is mainly used, the concentration should be low, such as urea is 0.3-0.5%; in the second half of the growing season, phosphorus and potassium are mainly sprayed, and the concentration can be high, such as spraying dihydrogen phosphate. Potassium is 0.5%, at which point the spray of urea can reach 0.5-0.7%.
2, the flowering period is mainly nitrogen, boron (0.2-0.3%) photosynthetic micro-fertilizer, and the deficiency is often added.
3, do a good job of "two before" (before defoliation and before germination), high concentration (1% of urea before defoliation, up to 3% of sprayed buds before germination), the focus of spraying with obvious results.
4, choose no wind before 10 am or after 5 pm, increase the amount of fertilizer.
Hua County: Yue Xiuli
1. Distribution equilibrium is less affected by the growth center.
2. Fast speed, low dosage and high efficiency.
3, not subject to soil leaching and fixation, good effectiveness, supplemented with phosphorus and trace elements, etc., the effect is particularly obvious.
4. Improve leaf function, extend leaf life and increase nutrient storage.
The period of apple leaf surface spray fertilizer:
1. In the first half of the growing season, nitrogen is mainly used, the concentration should be low, such as urea is 0.3-0.5%; in the second half of the growing season, phosphorus and potassium are mainly sprayed, and the concentration can be high, such as spraying dihydrogen phosphate. Potassium is 0.5%, at which point the spray of urea can reach 0.5-0.7%.
2, the flowering period is mainly nitrogen, boron (0.2-0.3%) photosynthetic micro-fertilizer, and the deficiency is often added.
3, do a good job of "two before" (before defoliation and before germination), high concentration (1% of urea before defoliation, up to 3% of sprayed buds before germination), the focus of spraying with obvious results.
4, choose no wind before 10 am or after 5 pm, increase the amount of fertilizer.
Hua County: Yue Xiuli
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