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In the pre-greening period, pre-union stage, pre-pregnancy stage, pre-flowering stage, and pre-grouting stage, 400 grams per acre is applied, and 75 to 150 times of water is fully dissolved and sprayed.
2, rapeseed application method
In the pre-emergence stage and the late seedling stage, spray potassium dihydrogen phosphate (containing potassium ammonium dihydrogen phosphate) twice, each time with 200 g of potassium dihydrogen phosphate (containing potassium ammonium dihydrogen phosphate) and water 30 kg, sprayed in the flood season. Potassium dihydrogen phosphate (containing potassium ammonium dihydrogen phosphate) twice per acre of 400 grams of water 30 kg, from flowering to maturity, spraying potassium dihydrogen phosphate (containing potassium dihydrogen phosphate) every 10 days, each Each batch of 800 grams of water is 50 kilograms of water. The performance is that the seedlings are full, less diseased, and the increase is large.
3. Tea application method
Spraying once every 7 to 10 days in the growth period of tea, the concentration is 0.3%, about 50-100 grams per mu, potassium dihydrogen phosphate (containing potassium dihydrogen phosphate) (potassium dihydrogen phosphate (potassium potassium dihydrogen phosphate) Ammonium) can effectively resist drought, cold, yellow leaves and other diseases, and can greatly increase the yield and quality of tea.
4. Method for super-constant application of cucumber, tomato, bean, eggplant and other vegetables
The seedling period was sprayed twice with potassium dihydrogen phosphate (containing potassium ammonium dihydrogen phosphate) at a concentration of 1%. At the time of transplantation, the concentration of 1% potassium dihydrogen phosphate (containing potassium ammonium dihydrogen phosphate) can be immersed or rooted, and the seedlings can be sprayed twice in the pre-flowering period, and potassium dihydrogen phosphate (dihydrogen phosphate) is used per mu per time. Potassium ammonium) 200 grams of water 30 kg, sprayed once every 7 days after fruit setting, using 400 grams of water per acre 50 kg.
Application of potassium dihydrogen phosphate on crops
1. Wheat application method
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