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Greenhouse soil nitrate pollution modifying agent, and preparation method and using method thereof

A nitrate and improver technology, applied in the field of agricultural pollution prevention and control, can solve the problems of limited influence of nitrogen utilization rate improvement, difficult control of application amount, high cost investment, etc., to achieve easy survival and reproduction, improve nitrogen utilization rate, reduce The effect of nitrate nitrogen content

Inactive Publication Date: 2014-01-22
HEILONGJIANG ACAD OF SCI INST OF NATURAL RESOURCES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A reasonable combination of nitrogen, phosphorus and potassium can prevent the accumulation of soil nitrate, but there are also problems of high cost input and difficult control of application amount; (4) agronomic measures
The control of soil nitrate often uses single agronomic measures such as increasing irrigation or increasing light, which has limited impact on the transformation of soil nitrate nitrogen and the improvement of nitrogen use efficiency

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0022] The invention relates to a facility soil nitrate pollution modifier and a preparation method thereof, which are applied in the field of agricultural pollution prevention and control. The active ingredients of the improver are composed of sodium humate, dicyandiamide, dipotassium hydrogen phosphate compound solution and EM bacteria solution. The present invention is a facility soil nitrate pollution prevention and control technology. Aiming at the mechanism and cause of facility soil accumulation, comprehensive improvement and application are carried out by using technical means such as biology and chemical control, and a set of facilities with strong practicability and high application value is explored. Comprehensive prevention and control technology of soil nitrate pollution. The implementation of the present invention can effectively prevent and control the risk of nitrate pollution in groundwater in intensive vegetable planting areas, reduce the nitrate nitrogen con...

Embodiment 1

[0031] 1. Raw materials: sodium humate, dicyandiamide and EM bacteria.

[0032] 2. Preparation:

[0033] (1) Composite liquid compounding: Dissolve 380g of sodium humate raw material in 2500ml of water; heat to 46°C, then add 150g of dicyandiamide, stir rapidly for 5 minutes, cool to room temperature after dicyandiamide is completely dissolved, and set the volume to 5000ml, made into barreled products; (2) Fermentation of EM bacteria liquid: mix evenly according to the ratio of 10g of EM bacteria: 1kg of brown sugar: 10kg of purified water at 42°C, and ferment at 36°C in airtight heat preservation, shaking once every 2 days, 7 days Serve, in the meantime, loosen the lid in time to deflate, and immediately cover tightly, until the gas is no longer produced, and the fermentation is successful when you can smell the sweet and sour aroma. After the fermentation is completed, 280ml of bacterial liquid is taken to make a bottled product. In this embodiment, during the preparation ...

Embodiment 2

[0037] 1. Raw materials: sodium humate, dipotassium hydrogen phosphate, dicyandiamide and EM bacteria.

[0038] 2. Preparation:

[0039] (1) Composite liquid compounding: Dissolve 315g of sodium humate raw material in 2500ml of water; heat to 49°C, add 1055g of dipotassium hydrogen phosphate, stir and dissolve for 5 minutes; then add 120g of dicyandiamide, stir rapidly for 5 minutes, wait for double After the cyanamide is completely dissolved, cool to room temperature, set the volume to 5000ml, and make a barreled product; (2) Fermentation of EM bacteria liquid: mix evenly according to the ratio of 11g of EM bacteria: 1.1kg of brown sugar: 9kg of pure water at 42°C, and airtight Keep warm at 37°C for fermentation, shake once every 2 days, and serve in 6 days. During this period, loosen the lid in time to deflate, and immediately cover it tightly until the gas no longer occurs and the fermentation is successful when you can smell the sweet and sour aroma. After the fermentatio...

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PUM

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Abstract

The invention belongs to the field of agricultural pollution prevention and control, and in particular relates to a greenhouse soil nitrate pollution modifying agent used for comprehensively modifying greenhouse soil nitrate pollution and effectively preventing and controlling underground water nitrate pollution risk in intensive vegetable planting regions, and a preparation method and a using method thereof. The greenhouse soil nitrate pollution modifying agent consists of composite liquid and effective microorganism (EM) bacteria liquid with equal mass ratio, wherein the composite liquid is prepared from sodium humate and dicyandiamide through composite proportioning; the EM bacteria liquid is bacterial liquid of fermented EM bacteria; and the composite liquid and the EM bacteria liquid are mixed according to the mass ratio of 1:1. The composite liquid and the EM bacteria liquid are combined to be irrigated and applied to soil, so that the greenhouse soil nitrate pollution can be prevented and controlled through biological and chemical control technological means, the nitric nitrogen content of the greenhouse soil can be reduced by above 10 percent, and the nitrogen utilization ratio of crops can be increased by above 15 percent.

Description

technical field [0001] The invention belongs to the field of agricultural pollution prevention and control, and specifically relates to a facility soil nitrate pollution improvement agent for comprehensively improving facility soil nitrate pollution and effectively preventing and controlling the risk of groundwater nitrate pollution in intensive vegetable planting areas, as well as its preparation method and use method . Background technique [0002] In the process of intensive facility production, a large amount of nitrogen fertilizer and organic materials are applied in order to pursue the greatest economic benefits, resulting in leaching of nitrate in the soil and nitrate pollution in surface water and groundwater. The prevention and control measures of nitrate pollution in facility soil at home and abroad are mainly through the following methods: (1) Application of nitrogen inhibitors. The amount of nitrogen fertilizer inhibitors should be determined according to the ni...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K17/00B09C1/10C09K101/00
Inventor 于志民吕品袁红梅周琳沈光王立民熊燕师军
Owner HEILONGJIANG ACAD OF SCI INST OF NATURAL RESOURCES
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