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Urease inhibitor composition and fertilizer composition containing same

The technology of a urease inhibitor and a composition is applied in the field of fertilizer technology synergy to achieve the effects of reducing pollution, reducing dosage and improving efficiency

Active Publication Date: 2022-07-29
北京艾格鲁国际农业科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the application of yucca extract in the field of fertilizer urease inhibitors is rarely mentioned, and it has a high potential for development and utilization

Method used

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  • Urease inhibitor composition and fertilizer composition containing same
  • Urease inhibitor composition and fertilizer composition containing same
  • Urease inhibitor composition and fertilizer composition containing same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0060] This example discloses the preparation of yucca extract. The leaves of yucca plants (origin: Shuyang, Jiangsu) are taken, dried at a constant temperature of 50°C, pulverized to powder, and passed through a 40-mesh sieve to obtain yucca powder for later use. The preparation of yucca extract includes the following steps:

[0061] Decoction: take 2kg of sifted yucca powder, add 12kg of water, decoct for 2 hours, filter, repeat 2 times, and combine the filtrates of each time to obtain a decoction liquid;

[0062] Primary concentration: the decoction liquid is concentrated under reduced pressure to a relative density of 1.10, and allowed to cool to room temperature to obtain a primary concentrated solution;

[0063] Extraction: the primary concentrated solution is extracted with an extraction solvent to obtain an extraction solution; the extraction solvent is a water-saturated n-butanol solution, and the volume ratio of the primary concentrated solution to the n-butanol is 1...

Embodiment 2

[0070] This example discloses the urease inhibitory efficacy of yucca extract (YE) and N-butylthiophosphoric triamide (NBPT) alone as urease inhibitors.

[0071] Test material: The soil for test was collected from the 0-20cm topsoil of the peanut experimental field of Beijing Aiglu International Agriculture Co., Ltd., and the texture was sandy loam. After the fresh soil was collected, the sundries and residual roots were removed, and the soil was air-dried and passed through a 2mm sieve for use. The test fertilizer urea was an analytical reagent, the test yucca plant extract was prepared under the method of Example 1, and the test urease inhibitor N-butylthiophosphoric triamide (NBPT) was produced by Wuhan Huaxiang Kejie Biotechnology Produced by Technology Co., Ltd.

[0072] Experimental design and method: The experiment was set up with 4 treatments, each treatment was repeated 3 times, and the treatments were as follows:

[0073] Treatment 1: Blank control (CK): no materia...

Embodiment 3

[0083] This example discloses the urease inhibitory efficacy of Yucca extract (YE) and N-butylthiophosphoric triamide (NBPT) in combination as a urease inhibitor composition.

[0084] The test materials are the same as those in Example 2.

[0085] Experiment design and method: The experiment was set up with 7 treatments, and each treatment was repeated 3 times. The order of each treatment was as follows:

[0086] Treatment 1: single urea treatment (U);

[0087] Treatment 2: 0.1%NBPT+10%YE+U treatment;

[0088] Treatment 3: 0.1%NBPT+20%YE+U treatment;

[0089] Treatment 4: 0.1%NBPT+30%YE+U treatment;

[0090] Treatment 5: 0.3%NBPT+10%YE+U treatment;

[0091] Treatment 6: 0.3%NBPT+20%YE+U treatment;

[0092] Treatment 7: 0.3% NBPT+30% YE+U treatment.

[0093] Among them, the urea application amount of each treatment was the same, which was 350 mg / kg dry soil according to the pure N amount; the dosage of NBPT and yucca extract was calculated as the percentage of urea N amou...

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Abstract

The invention discloses a urease inhibitor composition, which is characterized by comprising a yucca extract; and a chemical urease inhibitor. The urease inhibitor composition can reduce the use amount of the urease inhibitor, improve the efficiency of the urease inhibitor and reduce the pollution to the environment, and the urease inhibitor composition and the fertilizer composition which are suitable for being used for the land for a long time and do not have residues are provided.

Description

technical field [0001] The invention relates to the field of fertilizer technology synergy, in particular to a urease inhibitor composition and a fertilizer composition containing yucca extract and a preparation method thereof. Background technique [0002] Urea is currently the most widely used nitrogen fertilizer in agricultural production, and plays a significant role in improving crop quality and yield. As urea is applied to the soil, it is first hydrolyzed into NH by urease 4 + , part with NH 3 form escaping from the soil. After that, NH 4 + Under the action of soil nitrifying bacteria, NO is formed 3 - , the whole process only takes 7-10 days. Urea is converted to NH 3 and NO 3 - The faster the rate, the more serious the nitrogen loss. Among them, the rate of hydrolysis of urea by urease is 10% without enzyme catalysis. 14 The direct utilization rate of urea by plants is only 30%-35%, and the annual loss of nitrogen in the country is about 1.0*10 7 t arou...

Claims

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Application Information

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IPC IPC(8): C05G3/90C05C9/00
CPCC05G3/90C05C9/00Y02P60/21
Inventor 刘统棋齐季周爽
Owner 北京艾格鲁国际农业科技有限公司
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