Nitrogen stabilizer as well as preparation method and application thereof

Abstract

The invention relates to a nitrogen stabilizer comprising the following materials in percentage by weight: 30%-50% of calcium base bentonite, 15%-30% of humic acids and 10%-30% of thiourea. Compared with the prior art, the nitrogen stabilizer can effectively prolong the residence time of nitrogen, thereby effectively prolonging the fertilizer effect period and enhancing the utility ratio; in addition, the nitrogen stabilizer has low price, flexible use, convenient and easy preparation, and the like and is suitable for various nitrogenous fertilizers, thereby being an optimal stabilizer for producing various long-acting slow-release nitrogenous fertilizers and long-acting slow-release compound fertilizers.

Description

technical field [0001] The invention relates to a fertilizer additive, especially a fertilizer stabilizer. Background technique [0002] At present, my country has become the largest country in the consumption and production of chemical fertilizers in the world. Nitrogen fertilizer is the most widely used fertilizer variety in agricultural production, and its production and application volume are increasing year by year, especially in some economically developed areas, where the expensive rural labor costs make people abandon the tradition of using organic fertilizers and replace them with large amounts of chemical fertilizers. . According to statistics, in 2004, the total domestic consumption of chemical fertilizers was about 44 million tons, of which the consumption of nitrogen fertilizers was about 21.6 million tons. Ranked first in the world. [0003] However, the low utilization rate of nitrogen fertilizer in our country has always restricted agricultural development...

AI Technical Summary

Problems solved by technology

[0003] However, the low utilization rate of nitrogen fertilizer in our country has been restricting agricultural development and farmers' income. For example, the utilization rate of urea nitrogen is only 30% to 40%, and the fertilizer effect period is only about 50 days, so it is mainly used as topdressing fertilizer.

However, the existing long-acting slow-release fertilizers have not been popularized and applied due to high cost, complicated process, or unsatisfactory fertilizer efficiency and environmental problems.

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