Application of Humic Acid Slow and Controlled Release Fertilizer on Corn

Humic acid slow-release fertilizer is a combination of humic acid compound fertilizer and slow-release nitrogen fertilizer. Activated humic acid can promote the absorption of phosphorus and potassium and improve fertilizer utilization. It is a natural growth regulator and can promote the growth of corn roots; it can Promote the formation of soil aggregate structure and regulate soil water and fertilizer conservation. Slow-controlled release nitrogen fertilizer can ensure the supply of nitrogen fertilizer throughout the growth period of corn. The combination of the two has a synergistic effect on corn fertilizer requirements.

According to the nutritional demand characteristics of corn and the soil nutrient status, choose a suitable formula of humic acid slow and controlled release fertilizer products. Various regions can also add the required trace elements in a targeted manner according to the lack of trace elements. The release period of slow- and controlled-release fertilizers is generally 2 to 3 months.

Use a corn seed and fertilizer co-seeder to sow seeds and humic acid slow-release fertilizer into the soil at one time to achieve a "good seed + good fertilizer + good method" package, improve the accuracy of sowing and fertilization, and improve farming efficiency.

Appropriately late harvesting without affecting the sowing of the next crop can increase production by more than 5%, which is an effective measure to increase income without cost. Harvest can be done when the milk line of corn kernels has basically disappeared and the black layer at the base appears. During harvesting, a combine harvester is used to harvest the ears while crushing the straw and returning it to the field, reducing operating procedures and improving efficiency. Crushed straw must be spread evenly, and piles must be spread manually. Straw larger than 10cm must be cleared out of the field, and then more than 20cm must be plowed in time to ensure the quality of land preparation.