A method for increasing the content of urease and phosphatase in farmland

A medium urease and phosphatase technology, applied in soil preparation methods, fertilization methods, agricultural machinery and implements, etc., can solve problems such as excessive nitrate content in groundwater, eutrophication in surface water, and decline in crop yield, so as to promote absorption and increase Urease and phosphatase content, effects of avoiding eutrophication
CN109906703BActive Publication Date: 2022-03-18CHINESE RES ACAD OF ENVIRONMENTAL SCI +2
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHINESE RES ACAD OF ENVIRONMENTAL SCI
Publication Date
2022-03-18

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Abstract

The invention provides a method for increasing the content of urease and phosphatase in farmland. This method is the first to spray a specific amount of potato and / or sweet potato starch processing wastewater on the farmland after soil preparation and furrowing, and perform deep plowing on the farmland after spraying potato and / or sweet potato starch processing wastewater. It is found that the content of urease and phosphatase in the farmland can be significantly increased. Compared with the method of applying inorganic fertilizers, the content of urease and phosphatase in the soil can be increased by at least 25% in this application, and it can be decomposed by urease and phosphatase Transform the organic nitrogen and phosphorus macromolecules in the soil into inorganic salts, promote the absorption of nitrogen, phosphorus and other nutrients by crops, and finally improve the fertilizer utilization rate and soil fertility; at the same time, the farmland treated with this method will increase the yield by at least 20 per mu. More than %, for example, compared with single application of chemical fertilizers (N equal amount), the yield of corn per mu can be increased by 20% to 35%.
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Description

Technical field

[0001] The present invention belongs to the field of fertilization technology, and more particularly to a method of improving urease and phosphatase content in farmland. Background technique

[0002] After the use of chemical fertilizers in the 1980s began to promote popularization in agricultural production in my country, inorganic fertilizers became the dominant fertilizer for determining crop yield. In order to pursue crop yield, farmers usually apply fertilizers (ignition nitrogen fertilizers), which causing waste of fertilizer, economic benefits, but also caused soil knots and fertility, unused fertilizers will bring surface Water rich eutrition, underground nitrate content exceeds the standard and the atmosphere n 2 O Environmental issues such as emissions.

[0003] However, if the amount of fertilizer is reduced, it will bring a defect with a decrease in crop yield. In addition, conventional fertilizers apply at least 2 times of fertilization in the entire ...

Claims

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