Key points of fertilization for Maize

Corn is a kind of food crop with 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 great market demand. When we plant corn, if we want high yield of corn, then fertilization is essential. So when we are planting corn, how to fertilize it? Today, the editor brings you the main points of corn fertilization. Let's take a look at it.

1. Apply organic fertilizer

The yield of corn is relatively high, and the demand for fertilizer in the growth will be relatively large. And the yield of corn is directly related to the fertility of the soil. Therefore, when planting corn, if we want high yield and high efficiency of corn, then we must properly apply organic fertilizer to improve soil structure and improve soil fertility. Organic fertilizer is generally based on base fertilizer, and the amount of organic fertilizer per mu should be kept at about 4000kg.

2. Steady application of nitrogen fertilizer

When planting spring corn, we should not only apply sufficient base fertilizer, but also control the amount of topdressing. Summer corn should be topdressing mainly if the yield per mu exceeds 500kg. Then the amount of nitrogen fertilizer should be stable at about 10kg, if the yield is about 300-500kg, then the amount of nitrogen fertilizer should be kept at about 8kg. If the final yield is lower than 300kg, then the nitrogen fertilizer should be kept at 6kg/ mu. In addition, the time and method of fertilization should be adjusted reasonably to improve the efficiency of nitrogen fertilizer.

3. Control the application of phosphate fertilizer

When applying phosphate fertilizer, we should control the amount of phosphate fertilizer according to the content of available phosphorus in the soil. For the geology and mineral resources with different output, the amount of phosphate fertilizer per mu is also different. For example, the amount of phosphate fertilizer in high-yield fields should be controlled around 7kg, while in low-yield fields, the amount should not exceed 5kg. And the application method of phosphate fertilizer is also different in different seasons. For example, if it is spring corn, then phosphate fertilizer should be applied as base fertilizer, while summer corn should be applied with nitrogen fertilizer.

4. increase the application of potash fertilizer.

The longer the useful life of the soil is, the content of available potassium in the soil will decrease year by year. The phenomenon of potassium deficiency in corn will become more and more serious, because in order to meet the demand for potassium during the growth of corn. Attention should be paid to increasing the amount of potash fertilizer, and the yield should also be taken as the standard of potash fertilizer application. High yield field 8kg, middle yield field 7kg, low yield field 6kg and so on. On the other hand, the application ratio of nitrogen, phosphorus and potassium fertilizer should be controlled at about 0.5 / 0.5 / 0.6.

The above is a brief introduction to the main points of corn fertilization. In addition, we should also pay attention to the supplementary application of micro-fertilizer to ensure comprehensive growth nutrition for corn. That's all for today's introduction. Thank you for your reading and support.