How to fertilize summer corn scientifically

How to fertilize summer corn scientifically? Please introduce the method that corn is a high-yield crop, which requires a large amount of fertilizer. Scientific fertilization is the key to obtain high and stable yield of corn. According to the law of fertilizer demand of corn, the reasonable fertilization method and the appropriate proportion of fertilizer can be determined in order to realize the high and stable yield of corn and obtain the maximum economic benefit. Good application of base fertilizer or seed fertilizer: summer corn should apply base fertilizer before sowing, mainly organic fertilizer (less used in production), and straw can also be directly returned to the field by using the previous stubble wheat (appropriate amount of nitrogen fertilizer should be applied, carbon-nitrogen ratio should be adjusted and straw rot should be accelerated). The main kinds of fertilizers are available nitrogen, phosphorus and potassium fertilizers, such as diammonium phosphate (about 5 kg-10 kg per mu) and potassium sulfate compound fertilizer (about 10 kg-15 kg per mu with 45% content), all of which have a good effect on increasing production. Proper topdressing is the key: topdressing plays an important role in the growth of maize, which is mainly composed of available nitrogen fertilizer and phosphorus and potassium fertilizer according to different growth stages of maize. In practice, it is usually divided into three stages of topdressing: seedling fertilizer, jointing fertilizer and panicle fertilizer. Fertilization at the seedling stage should be applied early, accounting for about 10% of the total topdressing amount, and jointing fertilizer accounts for about 60% of the total topdressing amount. This fertilization is the key topdressing fertilizer, and ear-breaking fertilizer accounts for about 30%. Summer corn has more demand for nitrogen, phosphorus and potassium at jointing and booting stage. phosphorus and potassium fertilizer should be applied according to specific conditions. Pay attention to the application of foliar fertilizer: foliar fertilization, as an economical and effective fertilization measure, is recognized and applied by many people. For example, spraying 0.2% muri 0.3% potassium dihydrogen phosphate 2-3 times at jointing stage can increase maize yield by more than 10%. Spraying 0.1% MUE 0.3% zinc sulfate solution at maize seedling stage and jointing stage can prevent the occurrence of maize white seedling mosaic disease. The application of special fertilizer should be careful. At present, special fertilizers with various names emerge one after another in the agricultural market, including many fake and shoddy products. Today is a special fertilizer for corn, and tomorrow, as soon as the packaging bag is changed, it may be a special fertilizer for wheat. Therefore, we must be careful when buying and using fertilizer, and choose fertilizer according to the growth characteristics of corn and soil nutrients. Click to get more corn planting techniques click to get more food crop planting techniques