High-efficiency organic-inorganic compound fertilizer and production method thereof

Abstract

The invention discloses an efficient organic-inorganic compound fertilizer and a production method thereof. The compound fertilizer sequentially comprises a fertilizer core 1, an interlayer 2 and a surface layer 3 from inside to outside, the fertilizer core is composed of fertilizer particles; the interlayer is composed of interlayer fertilizer and organic fertilizer; the surface layer is composedof a surface layer fertilizer; the interlayer and the surface layer both contains sulfate; and the fertilizer core, the interlayer and the surface layer all contain phosphate fertilizer. Systematic design is developed for increasing the utilization rate of the phosphate fertilizer, and finally the utilization rate of the phosphate fertilizer can be remarkably increased to 40%-60% or even higher;the utilization rate of the nitrogen fertilizer is higher than that of a common nitrogen fertilizer and can reach 50%-65%, and important application value is achieved.

Description

technical field [0001] The invention belongs to the field of fertilizers, and relates to a high-efficiency organic-inorganic compound fertilizer and a production method thereof. Background technique [0002] my country's per-mu fertilizer consumption of 21.9 kg is much higher than the world average (8 kg), 2.6 times that of the United States and 2.5 times that of the European Union (Ministry of Agriculture and Rural Affairs of China, 2015). my country's fertilizer utilization rate is far below the world average. In terms of excessive fertilization, China's excessive nitrogen and phosphorus inputs accounted for 33% and 36% of the world respectively. [0003] In 2015, the Ministry of Agriculture and Rural Affairs of the People's Republic of China issued the "Action Plan for Zero Growth in Fertilizer Use by 2020", which proposed a technical path of one refinement, two adjustments, three changes and four replacements. Among them, "adjustment" refers to the adjustment of the st...

AI Technical Summary

Problems solved by technology

[0004] In my country, the technology system of organic nutrient resource utilization is immature and the application cost is high, resulting in low utilization rate of organic nutrient resources

Our country has been promoting the fertilization strategy combining organic and inorganic materials, but due to the influence of technical conditions and fertilizer product structure, it has not been able to achieve the expected goal.

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