A kind of fertilizer coated slow-release agent and application method thereof

Abstract

The invention discloses a fertilizer coating slow-release agent and its application method, belonging to the technical field of fertilizers. By setting a load-bearing slow-release ball at the bottom of a conical slow-release body, after the conical slow-release body is thrown and put in, the conical slow-release The slow-release body is inserted into the soil with the cooperation of the soil-entry cone, and water is sprayed to the fertilization site. Multiple fast hydrolysis parts and slow hydrolysis parts are hydrolyzed successively, and the water is introduced into the elliptical envelope to dilute the fertilizer. When the slow hydrolysis part is completely hydrolyzed, it is used to trigger the sinking ball. The sinking ball falls in the infinite position and pierces the upper film and the lower film in turn. After the lower film is pierced, the diluted fertilizer It is exported downward through the seepage port, and slowly infiltrates into the soil through the load-bearing slow-release ball and the conical slow-release body. It has long-term effect and does not require topdressing. The film layer between them, the conical slow-release body and the load-bearing slow-release ball all play a role in moisturizing the soil.

Description

technical field [0001] The invention relates to the technical field of fertilizers, in particular to a fertilizer coating slow-release agent and an application method thereof. Background technique [0002] For a long time, the nutrient utilization rate of chemical fertilizers in my country has been quite low. Taking urea as an example, only 30-40% of 50 kg of urea sprinkled on the ground is really absorbed and utilized by crops, and the remaining 60-70% are lost due to volatilization and rain, resulting in Fertilizer absorption and utilization rate are very low, and regular and continuous fertilization is required to meet the growth of plants; [0003] In addition, some fertilizers may cause large differences in concentration due to uneven local distribution during application. Excessive concentration may damage crop seeds, seedlings or burn leaves. These fertilization processes not only increase labor intensity, but also increase labor cost. [0004] Traditional common fer...

AI Technical Summary

Problems solved by technology

[0002] For a long time, the nutrient utilization rate of chemical fertilizers in my country has been quite low. Taking urea as an example, only 30-40% of 50 kg of urea sprinkled on the ground is really absorbed and utilized by crops, and the remaining 60-70% are lost due to volatilization and rain, resulting in Fertilizer absorption and utilization rate are very low, and regular and continuous fertilization is required to meet the growth of plants;

[0003] In addition, some fertilizers may cause large differences in concentration due to uneven local distribution during application. Excessive concentration may damage crop seeds, seedlings or burn leaves. These fertilization processes not only increase labor intensity, but also increase labor cost

[0004] Traditional common fertilizers are mainly based on nitrogen, phosphorus, and potassium, which cannot meet the more needs of crop growth, and cannot reduce the problem of fertilizer loss

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