1. Urea foot soluble fertilizer, with strong mobility, can easily cause loss. After spreading urea on dry land, avoid watering immediately. Pet Seat Covers,Dog Car Seat Cover,Dog Seat Cover,Dog Seat Cover For Car Ningbo Yinzhou Hengxi Winbate Household Product Manufacturer , https://www.nbwinbate.com
2. Ammonium carbonate should not be applied to the surface of ten soils. Ammonium carbonate is highly volatile and can easily cause seedlings to burn. It is best to open a deep hole.
3. Ammonium carbonate should not be used in greenhouses and greenhouses. Ammonium carbonate is known as "gas fertilizer", which is easily decomposed into ammonia gas and volatilized when applied in greenhouses and greenhouses.
4. Do not mix carbon-based nitrogen fertilizer with alkaline fertilizer. Carbonic nitrogen fertilizers such as ammonium bicarbonate, ammonium sulfide, ammonium nitrate, ammonium phosphate, etc., encounter alkaline substances and cause nitrogen loss. Do not mix with alkaline fertilizers such as grass ash, kiln ash potassium fertilizer and lime nitrogen.
5. Do not apply nitrate nitrogen fertilizer in aquatic flowers. The nitrate ions dissociated by ammonium nitrate and other nitronitrile fertilizers are easily dissolved in water to the deep soil layer and cause denitrification, resulting in nitrogen loss.
6. Ammonium sulfate is not suitable for long-term application. Ammonium sulfate is a physiological fertilizer, applied alone on a piece of land, it will increase the acidity of the soil and destroy the physical structure of the soil.
7. Phosphate fertilizers should not be dispersed. Phosphorus has little mobility and is easily absorbed and fixed by soil. It is best to use furrow application or hole application to concentrate application near the roots of crops.
8. Potassium fertilizer should not be used in the later stage of crops. Potassium has the characteristic that it can be transferred from the basal stems and leaves of the crop to the young part of the top for reuse, so the symptoms of potassium deficiency are later than those of nitrogen and phosphorus. Therefore, potassium fertilizer should be applied in the early stage of crop growth before catching, or applied as a base fertilizer at one time.
9. Avoid using chlorinated fertilizer alone for a long time, and avoid applying it to crops that avoid chlorine. Long-term application of potassium chloride alone will increase the accumulation of chloride ions in the soil, resulting in nutrient structure in the upper soil
Destruction and soil acidification.
10. Nitrogenous compound fertilizers should not be used in large quantities in legume crops. Soybeans, peanuts, mung beans, fava beans, peas, alfalfa.