How to improve the effect of foliar spraying on vegetables?
How can the effect of foliar spraying on vegetables be improved? Please give an introduction. For foliar fertilization of vegetables, different foliar fertilizers must be selected according to different vegetables in order to achieve good results. Leafy vegetables such as Chinese cabbage, spinach, celery, etc. should be mainly treated with urea and ammonium sulfate. Spraying concentration: urea at 2%, ammonium sulfate at 1.5%. Generally 10-1...
How can the effect of foliar spraying on vegetables be improved? Please give an introduction.
For foliar fertilization of vegetables, different foliar fertilizers must be selected according to different vegetables in order to achieve good results.
Leafy vegetables: Chinese cabbage, spinach, celery, etc. should be mainly treated with urea and ammonium sulfate. Spraying concentration: urea at 2%, ammonium sulfate at 1.5%. Generally spray once every 10-15 days, 2-4 times per season. Adding 500 times edible vinegar to the spray gives an even better effect.
Melon and fruit vegetables: various melons, tomato, eggplant, pepper, etc. should be sprayed with a mixed solution of nitrogen, phosphorus and potassium or a compound fertilizer. A 1%-2% urea solution and a 2% compound fertilizer solution can be sprayed, generally 1-2 times each during the growing period and the late period. In the late period, add 3000-4000 times 802 solution and spray together to prevent premature senescence.
Root and stem vegetables: garlic, onion, radish, potato, etc. can use a 0.3% potassium dihydrogen phosphate solution, a 10% plant ash extract, or a filtered soak of 2% superphosphate. Spray 3-4 times per season.
For foliar fertilizer spraying on vegetables, the best effect is achieved in the morning or evening of a sunny day. Each time, spray about 50 kg of fertilizer solution per mu, just enough to wet the leaves.
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