Upgrade of topdressing technology for maize root

Deep pursuit of ridges and furrows:

When the corn has 8 leaves, about 40 centimeters, use the fertilizer of the seeder to shovel deep into the furrow, and the fertilizer shovel will apply the chemical fertilizer directly to the depths of the furrow. This method breaks the phenomenon of less soil topdressing, serious root injury and low fertilizer utilization rate, and the fertilizer is not easy to evaporate. Early topdressing and deep topdressing are adopted in the seedling stage to improve the fertilizer utilization rate.

Spread the ridge surface with a big plough cover:

Combined with the third intermediate ploughing, the fertilizer was applied directly on the ridge, and then the soil was covered with a big plough. The disadvantage is that fertilizer is applied on top of the root, and there must be sufficient water after fertilization in order to exert fertilizer effect.

Topdressing in planing pits between plants:

This method can top fertilizer according to the required fertilization depth, plant roots are deep, and enhance the ability of fertilizer absorption, water absorption, drought resistance and lodging resistance. Topdressing in planing pits between plants requires more labor, but topdressing in a large area is not easy to achieve, so it is suitable for vegetables and cash crops.

Foliar spraying:

Timely foliar spraying of Zhuangsuiling can activate plant ecological growth positive energy, broaden plant vessel path, enhance plant water and fertilizer absorption, and improve yield and quality.