Corn is a high-yield crop, which requires a large amount of fertilizer. When fertilizing, it must be based on the law of corn fertilizer and scientific fertilization, in order to obtain high quality and high yield of corn, and obtain maximum economic benefits. Based on years of experience in agrochemical services, the author summarizes some tips for fertilizing summer corn and hopes to help the majority of farmers.
Pay attention to straw returning to the field. Straw returning can effectively increase the content of organic matter and improve soil fertility. Through investigation, focusing on the land that is returned to the straw, the corn yield can be significantly improved. However, after the straw is returned to the field, the appropriate amount of nitrogen fertilizer should be applied to adjust the carbon to nitrogen ratio to accelerate the straw maturity.
Skillful application of base fertilizer. The summer corn base fertilizer can be selected from high-nitrogen type controlled release fertilizer, and can also be applied in the field of 4-5 leaves of corn. The nutrient is slowly released, which can meet the demand for nutrients in various stages of corn, comprehensively improve the utilization rate of fertilizer, and apply once. It is not necessary to carry out topdressing in the later period, saving time and labor. It is also possible to use a high-nitrogen compound fertilizer, and then carry out a timely topdressing.
Grab the topdressing skills. The number of top dressings is also determined by the soil fertility, the amount of fertilizer applied, and the amount of base fertilizer. The big trumpet period is the period when the corn needs the most fertilizer, and it is the key period for determining the size of the ear and the amount of grain. The top dressing can be applied once in the big bell stage, or twice in the jointing stage and the big bell stage, but In the jointing stage, the topdressing should be less, and the latter should be chased. Pay attention when topdressing, and carry out the chasing on the shade of the corn row. There are two advantages to the topdressing of the shade: First, the milky surface is larger than the surface of the sun, which is beneficial to the release of fertilizer nutrients and the absorption of nutrients by the corn, which can improve the utilization rate of the fertilizer. Second, the root system of the yin surface is weaker than the root of the sun. This method of fertilization can be used. Enhance the roots of the labyrinth to prevent the corn from lodging.
Pay attention to straw returning to the field. Straw returning can effectively increase the content of organic matter and improve soil fertility. Through investigation, focusing on the land that is returned to the straw, the corn yield can be significantly improved. However, after the straw is returned to the field, the appropriate amount of nitrogen fertilizer should be applied to adjust the carbon to nitrogen ratio to accelerate the straw maturity.
Skillful application of base fertilizer. The summer corn base fertilizer can be selected from high-nitrogen type controlled release fertilizer, and can also be applied in the field of 4-5 leaves of corn. The nutrient is slowly released, which can meet the demand for nutrients in various stages of corn, comprehensively improve the utilization rate of fertilizer, and apply once. It is not necessary to carry out topdressing in the later period, saving time and labor. It is also possible to use a high-nitrogen compound fertilizer, and then carry out a timely topdressing.
Grab the topdressing skills. The number of top dressings is also determined by the soil fertility, the amount of fertilizer applied, and the amount of base fertilizer. The big trumpet period is the period when the corn needs the most fertilizer, and it is the key period for determining the size of the ear and the amount of grain. The top dressing can be applied once in the big bell stage, or twice in the jointing stage and the big bell stage, but In the jointing stage, the topdressing should be less, and the latter should be chased. Pay attention when topdressing, and carry out the chasing on the shade of the corn row. There are two advantages to the topdressing of the shade: First, the milky surface is larger than the surface of the sun, which is beneficial to the release of fertilizer nutrients and the absorption of nutrients by the corn, which can improve the utilization rate of the fertilizer. Second, the root system of the yin surface is weaker than the root of the sun. This method of fertilization can be used. Enhance the roots of the labyrinth to prevent the corn from lodging.
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