Nitrogen stabilizing agent and application thereof

Abstract

The invention relates to a nitrogen stabilizing agent and application of the nitrogen stabilizing agent. The nitrogen stabilizing agent is a clathrate compound formed by mechanically mixing urease inhibitors, nitrification inhibitors and beta-cyclodextrin or the beta-cyclodextrin and zeolite or the beta-cyclodextrin and attapulgite clay at normal temperature for 1-2 hours, and comprises the following raw materials by weight: 1-20 parts of the beta-cyclodextrin or the beta-cyclodextrin and the zeolite or the beta-cyclodextrin and the attapulgite clay, 1-10 parts of the urease inhibitor and 0.5-10 parts of the nitrification inhibitor, wherein the zeolite is 50-90% of total using amount of the beta-cyclodextrin and the zeolite, and the attapulgite clay is 50-90% of total using amount of the beta-cyclodextrin and the attapulgite clay. The nitrogen stabilizing agent and nitrogenous fertilizers are mixed to produce long-acting controlled release fertilizers for use, wherein the using amount of the nitrogen stabilizing agent is 0.5wt%-10wt% of nitrogen element total amount of the nitrogenous fertilizers. Nitrogen using ratio of the nitrogenous fertilizers is improved, and nitrogen loss is reduced.

Description

technical field [0001] The invention relates to a nitrogen stabilizer and its application. Background technique [0002] The application of chemical fertilizers and pesticides is the main measure to increase grain production. In the past ten years, my country's total grain output has increased with the increase of chemical fertilizer application, but due to the low utilization rate of fertilizer, the rate of increase in yield per unit of fertilizer has decreased significantly with the increase of chemical fertilizer application. The current utilization rate of chemical fertilizers in my country is about 30% to 35% of nitrogen, 10% to 20% of phosphorus, and 35% to 50% of potassium. This not only increases the cost of food production, but also causes a series of environmental problems, including agricultural non-point source pollution and air pollution, through surface loss, leaching and evaporation due to the excessive use of nitrogen fertilizers, which are not absorbed by p...

AI Technical Summary

Problems solved by technology

However, because the stability of these biological inhibitors is relatively poor, the effect of fixing nitrogen fertilizer during processing and use will gradually lose its efficacy over time.

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