1. Wheat. The topdressing of wheat should be in the 3-leaf stage, topdressing 13~18kg ammonium nitrate or 9~12kg urea once per 667m2; heading and dressing topdressing once during anthesis and flowering period, and using potassium dihydrogen phosphate 120g, 30alkanol per 667m2. The original liquid 1.5mg is formulated into a mixture spray of 20kg of water, and can also be applied with potassium dihydrogen phosphate 160g plus urea 1.5kg per 667m2 and 30kg water spray. 2. Corn. After the jointing of corn to the big bell-mouth period, it is the peak period of nutrient absorption. After the jointing, the first fertilizer is applied, and 10 kg of ammonium nitrate or 7 kg of urea is applied per 667 m2; the first 2 to 10 days before heading are applied. Sub-fertilizer, top 20kg ammonium bicarbonate or urea 10kg per 667m2; if the base fertilizer is adequate, the soil is very fertile, and only 1 topdressing can be concentrated, combined with cultivating and weeding. 3. Rice. The absorption of nitrogen fertilizers by rice gradually increased from the time it was turned green, and reached the peak of fertilizer absorption at the peak of tillering. In order to promote the early growth of rice, early delivery should be applied early and re-applied. Can be applied 7 to 10 days after transplanting, apply ammonium nitrate 1.5kg per 667m2, and recover 7kg urea after heading. 4. Soybeans. Soybean is a crop that requires more nitrogen fertilizer. Applying nitrogen fertilizer once at the early flowering stage can reduce the rate of flower drop, prolong plant lifespan, increase grain weight, and increase yield. In general, 10 to 15 kg of ammonium nitrate or 10 kg of urea is applied per 667 m2. 5. Peanuts. About 15 days after the emergence of peanuts, flower buds began to differentiate a lot and nodules began to form. When two pairs of lateral branches appear in the plant, nitrogen fertilizer should be applied one time in advance, applying 10 kg of ammonium per 667 square meters or 8 kg of urea. 6. Potato. Generally, topdressing can be applied before flowering of the potato. Early-maturing varieties are preferably top-dressing, and medium- and late-maturing varieties are top-dressed before budding. Topdressing ammonium bicarbonate 13 to 15 kg or urea 10 kg per 667 square meters. 7. Millet. From booting to heading stage, 6 kg of urea is applied in combination with irrigation or rainfall; spraying potassium dihydrogen phosphate 150-250 g per 667 square meters during heading and grain filling. 8. Sorghum. When the first joint fertilizer is applied at the jointing stage, 10 to 15 kg of ammonium nitrate or 8 to 12 kg of urea can be applied for every 667 square meters, and the second fertilizer can be applied at the booting stage, and 10 kg of ammonium carbonate or 5 kg of urea can be used per 667 square meters. Fresh Garlic,Natural Garlic,Premium Garlic,Organic Garlic Yirun Agricultural Cooperative , https://www.yiruncn.com