As one of the main food crops in China, the application of fertilizer during planting has an important impact on the growth and yield of corn. Whether urea can increase yield after corn ear emergence has always been a matter of great concern. This paper will discuss the correct fertilization method in the process of maize planting, especially the effect and precautions of timely application of urea after corn earing.
At the seedling stage, an appropriate amount of ureain can promote the growth of maize and improve the quality of seedlings. Especially in the case of poor soil nitrogen, timely urea can supplement the nitrogen in the soil and provide sufficient nutrients for corn. At the same time, urea can also promote the development of roots and increase the stress resistance of corn plants.
In actual planting, in addition to urea, it can also be combined with other fertilizers, such as phosphate fertilizer, potassium fertilizer, etc., to maintain the balance of soil fertility. In addition, the adjustment of soil pH is also an important part, which can be adjusted by adding neutral compounds such as lime.
The jointing stage is one of the most critical stages in the growth of corn. Appropriate urea application can promote the growth of stems and leaves, improve the efficiency of photosynthesis, increase the thickness of corn stalks and leaf area, and then increase the absorption and utilization efficiency of light energy.
In addition, proper nitrogen can also stimulate corn plants to produce more roots, improving plant stress resistance. Therefore, timely application of urea at the jointing stage can lay a solid foundation for the growth of corn.
During the tasseling stage of maize, urecin can promote the development of stamens, increase pollen yield, and improve pollen vigor and fertilization rate of maize. This plays a crucial role in the kernel development and yield improvement of maize.
In addition, an appropriate amount of nitrogen can also increase the green leaf area of corn, improve photosynthetic efficiency, and provide sufficient nutrients and energy for the growth of corn. Therefore, timely application of urea during the tasseling period can help maize plants to better photosynthesize and promote the healthy growth of maize.
In the elution stage of maize, appropriate urea application can promote the development of pistils and increase the number of fruits and yield of maize. At the same time, reasonable nitrogen** can also improve the fertilization rate and fertilization uniformity, reduce the empty ear rate and non-seed setting rate, and further increase the dry matter accumulation and yield of maize.
In summary, an appropriate amount of urea can play a variety of roles in promoting growth and increasing yield after corn earing. However, urea must be applied at the right amount, as excessive use can pollute the environment and waste nutrient resources. Therefore, it is necessary to determine the appropriate amount of urea according to soil fertility and the needs of corn crops when fertilizing, and use it in combination with other nutrients to achieve the best fertilization effect.
In addition, proper irrigation management is also one of the key factors in improving corn yields. Moderate urea application can increase the yield and quality of maize, but it can only be best achieved under reasonable irrigation conditions.
Timely urea sprinkled after corn ears emerges can promote plant growth and increase yield. In different growth stages, the role of urea is also different, but in general, the appropriate amount of urea application can increase the stalk diameter and leaf area of maize, improve the photosynthetic efficiency, promote root development, increase pollen vigor and fertilization rate, reduce the empty ear rate and non-seed setting rate, and finally achieve the effect of increasing maize yield and improving quality.
However, it is necessary to pay attention to the appropriateness of the dosage when fertilizing to avoid nutrient waste and environmental pollution caused by overapplication. At the same time, urea application also needs to be combined with other nutrients to maintain the balance of soil fertility. In addition, reasonable irrigation management is also one of the important measures to improve corn yield.
For farmers, when planting corn, reasonable fertilization is the key to improving yield. Therefore, according to their own soil conditions, climatic conditions and the needs of the corn growth stage, the type and amount of fertilizer should be reasonably selected and adjusted to ensure the balance and timeliness of nutrients. At the same time, make full use of scientific and technological means and professional technical guidance, keep abreast of new fertilization technologies and methods, continuously optimize their planting management, and improve corn yield and quality.
In practice, it can be adjusted in combination with factors such as the application time, method, dosage and formula of fertilizer to adapt to different soil fertility and crop needs. In addition, attention should also be paid to rational irrigation management and pest control, comprehensively do a good job in improving and protecting farmland soil, and improve soil fertility and the quality of the ecological environment.
In summary, timely application of urea after corn ear emergence can increase yield and improve quality, but fertilization still needs to be adjusted according to local conditions and according to specific conditions. Reasonable fertilization can not only improve the economic benefits of farmland, but also promote the development of sustainable agriculture and achieve green, efficient and sustainable development of agriculture.