At present, some farmers are fertilizing crops due to inappropriate fertilizers and poor technology, resulting in low fertilizer utilization, increased fertilizer costs, and even crop damage. Farmers' friends should pay attention to the following six points: 1. Calcium, magnesium and phosphate fertilizers should not be used as top dressings. They can only be used as base fertilizers and organic fertilizers. 2. Nitrogen fertilizers such as urea and ammonium bicarbonate should not be applied lightly, applied, or applied at too high a concentration. 3. Superphosphate should not be directly seeded so as not to affect seed germination rate and emergence rate. 4. Potassium fertilizer should not be applied only with nitrogen and phosphoric acid. 5. The zinc fertilizer should not be mixed with the phosphate fertilizer, the phosphate fertilizer should be used as the base fertilizer, and the zinc fertilizer should be used as the seedling fertilizer in order to give full play to the fertilizer effect. 6. Do not use cold water to dissolve borax spray. Add boiling water to dissolve and spray cold water. Kn95 Face Mask,Surgical Kn95 Mask,Medical Kn95 Mask,Disposable Kn95 Mask Guangzhou Aikangli Medical Technology Co., Ltd. , https://www.aikanli.com