According to the characteristics of soil fertility in China, corn special fertilizer was developed through soil testing formula. Nitrogen and phosphorus produced by patented technology of Chinese Academy of Sciences are added to the product. Potassium and other nutrient elements synergistic materials.
Under the action of synergist, the fertilizer supply rate of nitrogen fertilizer conforms to the growth demand law of gramineous crops such as corn, prolongs the validity period of nitrogen fertilizer, ensures the nitrogen demand of gramineous crops such as corn in the growth period, and realizes one-time fertilization during sowing without topdressing during the whole growth period.
Corn generally uses one-off corn special fertilizer, and compound fertilizer can also be used as base fertilizer and late topdressing. The common chemical fertilizers used in maize planting are nitrogen, phosphorus and potassium fertilizer special for maize. Commonly used fertilizers for corn are urea, diammonium phosphate, ammonium sulfate and ternary compound fertilizer. Common chemical fertilizers, phosphate fertilizers and nitrogen fertilizers, preferably compound fertilizers.
Application method of corn special fertilizer:
The recommended fertilization amount of this product is 40-50 kg per mu, which should be applied once when sowing, and no topdressing is needed in the later stage. If the recommended fertilization amount is not reached, it is slightly higher than diammonium phosphate, but it should be properly topdressing in the later stage. When making seed fertilizer, it must be applied separately from the seeds. Long fertilizer effect period. The effective period of the fertilizer can reach 90- 120 days, and it is applied once in spring, and no topdressing is needed in the whole growth period.