Vegetable foliar spray fertilizer has the advantages of fertilizer saving, quick effect, and increased yield, but it is necessary to select different foliar fertilizers according to different vegetable types in order to receive good results.
1. Leafy vegetables such as cabbage, spinach, celery, etc. require more nitrogen. Spraying fertilizer should be mainly urea and ammonium sulfate. The concentration of urea is 1% to 2% and ammonium sulfate is 1.5%.
Spraying 2 to 4 times per season is preferred for spraying in the early stage of growth.
2, melon and fruit vegetables such as pepper, eggplant, tomato, beans and various melons, the need for NPK is relatively balanced, should use NPK mixed solution or compound fertilizer. Can be sprayed with 1%
～2% urea and 0.3%-0.4% potassium dihydrogen phosphate mixed solution, or 2% compound fertilizer solution, generally sprayed once or twice in the pre-growth stage and the late stage. Spraying in the later stage can prevent premature aging, enhance stamina, and have a good yield increase effect.
3, root vegetables, garlic, onions, radishes, potatoes, etc. need more phosphorus and potassium, foliar fertilizer can choose 0.3% potassium dihydrogen phosphate solution, 10% grass ash leaching solution. It is usually sprayed 3 times to 4 times per season, and the effect is good.
Spraying foliar fertilizer is best when the afternoon sun is not too strong on cloudy or sunny days. According to the amount of vegetable growth, 30 kg to 50 kg per mu of spray fertilizer is used to limit the spray on the foliage. According to the demand of different vegetables for trace elements, the appropriate amount of micro-fertilizer is applied.
Can play a role in increasing production and improving quality, but the spraying concentration should not be too high; add pesticides and pests and diseases as needed, save labor and other effects, but avoid acid and alkali neutralization.
1. Leafy vegetables such as cabbage, spinach, celery, etc. require more nitrogen. Spraying fertilizer should be mainly urea and ammonium sulfate. The concentration of urea is 1% to 2% and ammonium sulfate is 1.5%.
Spraying 2 to 4 times per season is preferred for spraying in the early stage of growth.
2, melon and fruit vegetables such as pepper, eggplant, tomato, beans and various melons, the need for NPK is relatively balanced, should use NPK mixed solution or compound fertilizer. Can be sprayed with 1%
～2% urea and 0.3%-0.4% potassium dihydrogen phosphate mixed solution, or 2% compound fertilizer solution, generally sprayed once or twice in the pre-growth stage and the late stage. Spraying in the later stage can prevent premature aging, enhance stamina, and have a good yield increase effect.
3, root vegetables, garlic, onions, radishes, potatoes, etc. need more phosphorus and potassium, foliar fertilizer can choose 0.3% potassium dihydrogen phosphate solution, 10% grass ash leaching solution. It is usually sprayed 3 times to 4 times per season, and the effect is good.
Spraying foliar fertilizer is best when the afternoon sun is not too strong on cloudy or sunny days. According to the amount of vegetable growth, 30 kg to 50 kg per mu of spray fertilizer is used to limit the spray on the foliage. According to the demand of different vegetables for trace elements, the appropriate amount of micro-fertilizer is applied.
Can play a role in increasing production and improving quality, but the spraying concentration should not be too high; add pesticides and pests and diseases as needed, save labor and other effects, but avoid acid and alkali neutralization.
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