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

Active Publication Date: 2022-03-18
CHINESE RES ACAD OF ENVIRONMENTAL SCI +2
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] For this reason, what the present invention is to solve is that the existing fertilization rate is too little to cause the crop yield to decline, and the fertilization rate causes surface water eutrophication, the content of groundwater nitrate to exceed the standard and the N in the atmosphere. 2 environmental issues such as increased O emissions, and thus provide a method to increase the content of urease and phosphatase in farmland

Method used

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

Examples

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Effect test

Embodiment 1

[0035] This embodiment provides a method of improving the urease and phosphatase content in farmland, including the following steps:

[0036] (1) After the crops were harvested, the farmland was treated, and the area of ​​each m2 was 200m2, and the height of 8cm was 8cm.

[0037] (2) September 6th, the prediments of the potato processing wastewater were repeated and the solid content is ≤5 wt%, and then the potato processing wastewater is mixed with water. The mixture is formed in the mixture. The volume ratio of the potato processing waste water and water : 160, with the potato processing wastewater and water meter, the total spray is 200m 3 / Mu, the above mixture is sprayed into the farmland of the whole place, and the amount is 40m each time. 3 / Mu, interval 3 days is administered once until it is applied, in which potato water is a potato juice, the total nitrogen content in potato juice is 2145 mg / L, total phosphorus content is 208 mg / L, total potassium content is 2645mg...

Embodiment 2

[0041] This embodiment provides a method of improving the urease and phosphatase content in farmland, including the following steps:

[0042] (1) After the crops were harvested, the farmland was treated, and the area of ​​each mortar was 150m2, the height of 10 cm was 10 cm.

[0043] (2) September 6th, the prediments of the potato processing wastewater were repeated and the solid content is ≤5 wt%, and then the potato processing wastewater is mixed with water. The mixture is formed in the mixture. The volume ratio of the potato processing waste water and water : 160, with the potato processing wastewater and water meter, the total spray is 200m 3 / Mu, the above mixture is sprayed into the farmland of the whole place, and the amount is 30m each time. 3 / Mu, interval is administered once, until it is applied, among which potato-processed wastewater is potato juice water, the total nitrogen content of potato juice is 2145 mg / L, total phosphorus content is 208 mg / L, total potass...

Embodiment 3

[0047] This embodiment provides a method of improving the urease and phosphatase content in farmland, including the following steps:

[0048] (1) After the crops were harvested, the farmland was treated, and the area of ​​each mortar was 300m2, and the height of 5 cm was 5 cm.

[0049] (2) September 6th, the prediments of the potato processing wastewater were repeated and the solid content is ≤5 wt%, and then the potato processing wastewater is mixed with water. The mixture is formed in the mixture. The volume ratio of the potato processing waste water and water : 160, with the potato processing wastewater and water meter, the total spray is 200m 3 / Mu, the above mixture is sprayed into the farmland after the whole place, and the amount is 50m each time. 3 / Mu, separated by 4 days until it is administered, in which potato-proof water is potato juice, the total nitrogen content in potato juice is 2145 mg / L, total phosphorus content is 208 mg / L, total potassium content is 2645...

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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%.

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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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01B79/02A01C21/00C05F7/00
CPCY02A40/20
Inventor 赵博超王雪婷苑喜男朱克松窦广玉刘刚王天宁王小虎潘涔轩
Owner CHINESE RES ACAD OF ENVIRONMENTAL SCI
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