Maize is a kind of high-yielding crop, which requires large amount of fertilizer. Scientific fertilization is the key to obtaining high and stable yield of corn. According to the law of demand for fertilizer in maize, rational determination of fertilization methods and fertilization techniques is the key to achieve high and stable yields of maize, and it is also the main measure to achieve maximum economic benefits.
Top dressing is based on available nitrogen fertilizer. According to the different growth stages of corn, a certain amount of potash fertilizer can be properly applied. The top dressing method for corn science is three top dressings, namely Miao Fei, jointing fertilizer and panicle fertilizer, but in agricultural production practice,. Miaofei and panicle fertilizer are often omitted or incorporated into the jointing fertilizer. What is more, one-time fertilization method is used, and no fertilizer is simply added. From a scientific point of view, it is not necessary to release the controlled release agent. Promote a one-time fertilization.
Foliar fertilization is an economic and effective fertilization measure. For example, spraying foliar potassium dihydrogen phosphate, plant growth regulators, humic acid and other foliar fertilizers at the seedling stage and jointing stage have a certain effect on the increase of maize yield, especially in maize. Under adverse conditions such as drought, low-temperature chilling, and phytotoxicity, spraying foliar fertilizer is more effective.
Corn Note: Reasonably determine the top dressing time, do deep fertilization, see growing up fertilizer. Appropriate amount of potassium fertilizer. Reasonable application of foliar fertilizer.
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