Should corn topdressing be before or after the rain? When is the best topdressing time?
Should corn be topdressing before or after the rain? When is the best topdressing time? Generally speaking, when corn grows to 6-8 leaves, it is the jointing stage of corn, so it will rain. Once the weather forecast says that there will be moderate to heavy rain, some farmers will bring fertilizer to the fields to spread. It is best to fertilize before the rain. However, the weather changes rapidly in summer, and the weather forecast is sometimes inaccurate. At this time, farmers are waiting for the rain to spread. Some farmers spread seeds after the rain. There are various methods, including fertilizing one by one, sowing evenly along the corn ridge, and chasing rain.
No matter before, during or after the rain, the effect of fertilization is very good, mainly about how to apply it and how to use different fertilizers at different stages. Generally, high-nitrogen compound fertilizer is applied before and after rainfall, and soil burial method is adopted. Because high-nitrogen compound fertilizer melts slowly, it can prevent the increase of nutrients. Therefore, the soil burial method was chosen. If you fertilize in the rain, mainly nitrogen fertilizer, such as urea, urea melts and penetrates into the soil faster when it meets water. If urea is applied after rain, the wet soil will dissolve slowly and increase when the sun is seen, which is not conducive to the absorption of plants. Because we are on the plain, there are wheat bran and broken straw fragments in the fields, generally there will be no water inflow in the corn fields, and fertilizer and water will not flow to the fields of outsiders.
when planting corn, you will choose to apply sole fertilizer. When planting corn, you will fertilize it together, which is convenient and quick. In the middle and late stage, few people use the fertilizer applicator for topdressing, because it is not spring corn, and the field is clean and there is no debris. When sowing corn in summer, there are a lot of sundries in the field, which makes the corn denser and more troublesome to fertilize. Generally speaking, when fertilizing in the rain, urea is artificially applied, some in barrels, some in pots, and two people chase after several acres of land for a period of time.
Although the base fertilizer is sufficient, it is suggested to topdressing some nitrogen fertilizer in the middle and late stage, generally about 1 kg per mu. Don't waste too much, it will affect the maturity of corn. Top dressing time should be about 1 corn leaves. When the rainfall is moderate or heavy, topdressing is not recommended if the rainfall is light. However, it is not easy for farmers to cultivate, especially when topdressing corn, the leaves of corn are rough, and the rain and sweat are really unpleasant.
the best topdressing time of maize
the best topdressing time of maize is from 2 leaves and 1 core to 6 leaves and 1 core. Generally speaking, in the process of corn planting, high nitrogen urea is mainly applied as topdressing. Although urea is a high-concentration nitrogen fertilizer, which is very soluble in water, it can be rapidly decomposed by rain in rainy days, so the amount of rainfall is very important. If the rainfall is small, it is best to apply it before it rains. If it is heavy rain, it is best to apply it after the rain to prevent the fertilizer from being washed away by the rain.