Vegetable leaf spray fertilizer must be based on different vegetables use different leaf fertilizer in order to receive good results.
Leaf vegetables cabbage, spinach, celery, etc. should be based on urea, ammonium sulfate. Spraying concentration: urea 2%, ammonium sulfate 1.5%. Usually sprayed once every 10-15 days, sprayed 2-4 times per season, spray 500 times more when the vinegar spray, the effect is better.
Fruits, vegetables, melons, tomatoes, eggplants, peppers, etc. should be sprayed with a mixture of nitrogen, phosphorus, potassium or compound fertilizer, can spray 1%-2% of urea and 2% of the compound fertilizer solution, generally in the growth Spray 1-2 times during the period and later. In the later period, 3000-4000 times of mixed solution of 802 can be added to prevent premature aging.
Root vegetables such as garlic, onion, radish, and potatoes. 0.3% potassium dihydrogen phosphate solution, 10% ash leaching solution, and 2% calcium perchlorate filter solution can be used. Spray 3-4 times a season.
Spraying foliar fertilizers on vegetables works best on sunny mornings or evenings. Each time about 50 kilograms of fertilizer solution per acre is sprayed to wet the blades.
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