Fertilizer coating sustained-release agent and application method thereof

Abstract

The invention discloses a fertilizer coating sustained-release agent and an application method thereof, and belongs to the technical field of fertilizers. A bearing sustained-release ball is arrangedat the bottom of a conical sustained-release body, after the conical sustained-release body is thrown, the conical sustained-release body is inserted into soil under the cooperation of a soil penetrating cone, water is sprayed to a fertilization site, multiple rapid hydrolysis parts and slow hydrolysis parts are hydrolyzed in sequence, water is guided into an oval coating shell to dilute the fertilizer, after the slow hydrolysis parts are completely hydrolyzed, the slow hydrolysis parts are used for triggering sinking balls, the sinking balls fall off when not limited and sequentially pierce an upper film and a lower film, and when the lower film is pierced, the diluted fertilizer is guided out downwards through a material seeping opening and slowly permeates into the soil through the bearing slow-release ball and the conical slow-release body, the long-acting effect is achieved, topdressing is not needed, and a film covering layer arranged between the oval coating shell and the conical slow-release body, the conical slow-release body and the bearing slow-release ball play a role in moisturizing the soil.

Description

Technical field[0001]The invention relates to the technical field of fertilizers, and more specifically, to a fertilizer coated 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 is quite low. Take urea as an example. Only 30-40% of 50 kg of urea is actually absorbed and used by crops when 50 kg of urea is sprayed on the ground. The remaining 60-70% are lost due to volatilization and rain. Fertilizer efficiency 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 have large differences in concentration during application due to uneven local distribution during application. Excessive concentrations can damage crop seeds, seedlings, or burn leaves. These fertilization processes not only increase labor intensity, but also increase Cost of labor.[0004]Traditional...

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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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