What Are the Key Points of Corn Fertilization? A Full Analysis of the Latest Methods
Corn is a food crop with very high nutritional value, and its planting area in our country is very large. It is loved by many people in our country and has a large market demand. When we plant corn, if we want high corn yields, then fertilization work is indispensable. So when we plant corn, how should we fertilize it? Today the editor has brought you the key points of corn fertilization. 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 and efficient corn yields, 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 should sufficient base fertilizer be applied, but the amount of topdressing should also be controlled well. Summer corn should mainly rely on topdressing. 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 the 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 the application of phosphate fertilizer
When applying phosphate fertilizer, we should control the application rate of phosphate fertilizer according to the content of available phosphorus in the soil. For fields with different yields, the phosphate fertilizer rate per mu also differs. For example, the phosphate 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 phosphate fertilizer is also different for cultivation in different seasons. For example, if it is spring corn, then phosphate fertilizer should be applied as base fertilizer, while for summer corn it should be applied together with nitrogen fertilizer.
4. Increase the application of potassium fertilizer
The longer the soil is used, the more the content of available potassium and other nutrients in the soil will decrease year by year. And 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, and the yield level should likewise be used as the standard for the potassium fertilizer rate. High-yield fields 8kg, medium-yield fields 7kg, low-yield fields 6kg, etc. And 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 of corn fertilization. In addition, we should also pay attention to the supplementary application of micro-fertilizers to ensure comprehensive growth nutrition for corn. That is all for today's introduction. Thank you for your reading and support.