Maize fertilization can produce high yields, but it is not fertilization. The more, the better. In the process of fertilization, attention should be paid to the restriction of the minimum nutrient law. When the minimum nutrient law means that the soil lacks certain nutrients, although there are many other nutrient contents, the crop cannot grow well, and the crop yield is within this limit with this nutrient. Change and change. Therefore, a rational formula fertilization technique must be used. Formula fertilization is based on the organic fertilizer-based conditions, according to the amount of nutrients the target needs to absorb, the ability to provide nitrogen, phosphorus, potassium and other nutrients in the soil and the utilization of the applied fertilizer, calculate the required The appropriate amount and proportion of nitrogen, phosphorus, potassium and trace fertilizers were used for fertilization. The use of formula fertilization can increase the fertilizer production benefit by adjusting the ratio of nutrient application without increasing fertilizer investment. Therefore, rational formula fertilization is an important measure to reduce the cost of fertilization and achieve high yield and quality of corn. Reasonable formula fertilization is often based on the production of land, with the principle of N, P and K supplementation. Under normal circumstances, the middle-level fertility level applies 12-15 kg of pure nitrogen per acre. Phosphorus pentoxide 4-5 kilograms, potassium oxide 5 kilograms; high yield fertility levels, 15-18 kilograms of pure nitrogen per acre, phosphorus pentoxide 7-9 kilograms, potassium oxide 10 kilograms. Phosphorus and Potassium fertilizers were applied as a base fertilizer or a 5-leaf seedling was applied at one time. Nitrogen fertilizer was applied twice at the jointing stage (25 days after sowing) and during the big bell mouth period (45 days after sowing). The first fertilization accounted for 30%-40% of the total nitrogen fertilizer, and the second fertilization accounted for 60%-70% of the total nitrogen fertilizer. Ibuprofen Tablets And Capsules Ibuprofen Tablets And Capsules,Ibuprofen Tablet,Painkiller Ibuprofen Tablets,Fda Ibuprofen Tablets SHANDONG XINHUA PHARMACEUTICAL Co., Ltd. , https://www.sdxinhuapharm.com