During the growth of corn, fertilizers need to be applied to provide the required nutrients. So, how many times do you need to apply fertilizer to corn?In general, the number of times corn is fertilized depends mainly on factors such as the fertility of the soil, the variety of corn, and climatic conditions.
First of all, base fertilizer is a very important part of corn growth. Base fertilizer is usually applied to the soil before sowing to provide basic nutrients for corn throughout its growth cycle. The type and amount of base fertilizer should be determined according to the fertility of the soil and the fertilizer demand characteristics of corn, and the organic fertilizer and compound fertilizer are generally the main ones.
Secondly, in the growth process of corn, top dressing is also required. The number and time of top dressing should be determined according to the growth of corn and the nutrient status of the soil. In general, in the growth cycle of corn, top dressing is required 1-2 times. The first topdressing is usually carried out at the jointing stage of maize, mainly nitrogen fertilizer, which promotes the growth of maize plants. The second topdressing was carried out before the heading of the corn, mainly potassium fertilizer, which promoted the formation and fullness of the corn kernels.
In addition, in some areas, farmers also carry out a third top dressing during the growth of the corn to supplement the other nutrients needed by the corn. However, it should be noted that excessive fertilization may cause problems such as soil salinization and environmental pollution, so the number of fertilization and the amount of fertilization should be determined according to the actual situation in actual production.
In short, the number of fertilization of corn should be determined according to the actual situation. Proper fertilization can not only provide the nutrients needed for the growth of corn, but also improve the yield and quality of corn. At the same time, pay attention to controlling the amount and method of fertilization to avoid negative effects on the soil and the environment.