Novel ecological slow release carbamide compound, and preparation method and application thereof in production of agriculture or forestry

Abstract

The invention discloses a novel ecological slow release carbamide compound, and a preparation method and application thereof in the production of agriculture or forestry, belonging to the fields of agriculture or forestry. By using carbamide as the core, the novel ecological slow release carbamide compound comprises 31-37wt% of total nitrogen, 2-15wt% of organic substance, no less than 2wt% of trace element, 1-3wt% of medium element and the balance of C and O elements; and the probiotic viable count of the plant is greater than or equal to 20000 thousand per gram. Compared with the prior art, the novel ecological slow release carbamide compound can provide multiple long-acting and balanced nutrients for crops according to the different nutrient requirements at different growth periods of the crops, can supplement special sensitive medium and trace elements to different crops and can prevent plants, vegetables and the like from the nutrient deficiency symptom.

Description

technical field [0001] The invention relates to a novel ecological slow-release urea compound, its preparation method and its application in agricultural or forestry production. Background technique [0002] my country has about 1.826 billion mu of arable land, but the per capita is less than 1.35 mu, and the existing arable land is constantly being occupied and reduced. Improving the output rate of limited land resources is the core issue of building modern agriculture. As we all know, due to volatilization, leaching, runoff and other reasons, the utilization rate of single application of chemical fertilizers is very low, and most of the effective nutrients are lost. The low utilization rate of fertilizer directly leads to the increase of agricultural cost and environmental pollution. According to statistics, of the 35 million tons (pure conversion) of nitrogen fertilizer used in my country each year, 24 million tons (pure conversion) are lost through different channels, ...

AI Technical Summary

Problems solved by technology

However, due to the low utilization rate of chemical fertilizers in my country, especially nitrogen fertilizers, the annual loss rate of farmland nitrogen fertilizers is 33.3% to 73.6%, and the average total loss rate is about 60%.

On the other hand, due to the unreasonable excessive application of chemical fertilizers, it has caused negative impacts on crops, soil, water bodies and the atmosphere, such as soil compaction, the decline in fertility levels has no stamina, the economic benefits of fertilization have declined, and the quality of agricultural products has decreased—the so-called " Melons are not fragrant, fruits are not sweet, and vegetables are tasteless”

The nitrification of ammonia in nitrogen fertilizer increases the content of nitrate and nitrite in the water body, resulting in excessive nitrate and nitrite content in agricultural products, especially vegetables, posing a threat to human health

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