Detailed Explanation of Key Points for Fertilizing Corn: Scientific Fertilization Promotes High Yield
Corn is a food crop with very high nutritional value, and its planting area in China is very large. It is loved by many people in China and has a huge market demand. When we plant corn, if we want high corn yields, then fertilization work is essential. So when we plant corn, how should we fertilize? Today, the editor has brought you the key points for fertilizing corn. Let's take a look below!
1. Increase the application of organic fertilizer
The yield of corn is relatively high, so its demand for fertilizer during growth is also relatively large. Moreover, the yield of corn is directly related to the fertility of the soil. Therefore, when planting corn, if you want high yield and high efficiency, then you must appropriately increase the application of organic fertilizer, improve the soil structure, and increase soil fertility. Organic fertilizer is generally mainly used as base fertilizer, and its application rate per mu should be maintained at about 4000kg.
2. Apply nitrogen fertilizer steadily
When planting spring corn, not only sufficient base fertilizer should be applied, but the amount of topdressing should also be controlled well. For summer corn, topdressing should be the main method. If the yield per mu exceeds 500kg, then the application rate of nitrogen fertilizer should be stabilized at about 10kg. If the yield is 300-500kg, then the nitrogen fertilizer rate should be maintained at about 8kg. Finally, if the yield is less than 300kg, then nitrogen fertilizer should be maintained at 6kg/mu. In addition, the fertilization time and method should be reasonably adjusted to improve the fertilizer efficiency of nitrogen fertilizer.
3. Control phosphorus fertilizer application
When applying phosphorus fertilizer, we should control the amount of phosphorus fertilizer applied according to the content of available phosphorus in the soil. For soils with different yields, the amount of phosphorus fertilizer per mu also varies. For example, the phosphorus fertilizer rate for high-yield fields should be controlled at about 7kg, while for low-yield fields, the rate should not exceed 5kg. Moreover, the application method of phosphorus fertilizer is also different for cultivation in different seasons. For example, if it is spring corn, then phosphorus fertilizer should be applied as base fertilizer, while for summer corn, it needs to be applied together with nitrogen fertilizer.
4. Increase potassium fertilizer application
The longer the soil has been used, the content of available potassium and other nutrients in the soil will decrease year by year. The phenomenon of potassium deficiency in corn will also become more and more serious, because in order to meet the demand for potassium during corn growth, attention should be paid to increasing the application rate of potassium fertilizer. Similarly, the yield level should also be used as the standard for the potassium fertilizer rate. High-yield fields 8kg, medium-yield fields 7kg, low-yield fields 6kg, etc. The application ratio of nitrogen, phosphorus, and potassium fertilizers should be controlled at about 1:0.5:0.6.
The above is a brief introduction to the key points for fertilizing corn. In addition, we should also pay attention to the supplemental application of microfertilizers to ensure comprehensive growth nutrition for corn. That is all for today's introduction. Thank you for your reading and support.