Corn root topdressing technology upgraded

Deep furrow topdressing:

When corn has 7-8 leaves, about 40 cm, use the fertilizer shovel of the seeder to deeply run through the furrow, and the fertilizer shovel applies the chemical fertilizer directly deep into the furrow. This method breaks the previous conventional topdressing phenomena of little soil coverage, heavy root damage, and low fertilizer utilization rate. The fertilizer does not evaporate easily. Adopting the method of early and deep topdressing at the seedling stage improves the fertilizer utilization rate.

Broadcasting fertilizer on the ridge surface and covering with a large plow:

Combined with the third intertillage, apply the fertilizer directly on the ridge platform, then use a large plow to run soil over and cover the fertilizer. The disadvantage is that the fertilizer is applied above the roots, and sufficient moisture is needed after fertilization to bring the fertilizer effect into play.

Digging holes between plants for topdressing:

This method can carry out topdressing at the required fertilization depth. The crop roots go deep, enhancing the plant's ability to absorb fertilizer and water and its drought resistance and lodging resistance. Digging holes between plants for topdressing requires a lot of manual labor, and it is not easy to do for large-area topdressing. It is suitable for vegetables and cash crops.

Foliar spraying:

Timely foliar spraying of Zhuangsuling can activate the positive energy of plant ecological growth, broaden the plant conduit pathways, enhance the plant's water and fertilizer absorption capacity, and improve yield and quality.