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Earthworm excrement-based inhibition and control agent for vegetable-field soil Cu/Zn pollution as well as preparation method and application of earthworm excrement-based inhibition and control agent

A kind of inhibitor and vermicompost-based technology, applied in the field of vermicompost-based inhibitor and control agent, can solve the problems of short interval, frequent spraying times, reducing effect, etc., and achieve the effects of sufficient raw materials, low price, and promoting plant height growth.

Inactive Publication Date: 2019-01-08
HANGZHOU NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the resistance control agent has the advantages of convenient operation, but in the spraying process, there are problems that the water is easy to evaporate to reduce the effect, and the spraying frequency is frequent and the interval is short.

Method used

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  • Earthworm excrement-based inhibition and control agent for vegetable-field soil Cu/Zn pollution as well as preparation method and application of earthworm excrement-based inhibition and control agent
  • Earthworm excrement-based inhibition and control agent for vegetable-field soil Cu/Zn pollution as well as preparation method and application of earthworm excrement-based inhibition and control agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Embodiment 1: Preparation of vermicompost-based inhibitor

[0031] (1) Get 50kg of cow dung and 0.5kg of microbial fermentation agent and mix uniformly, then add 15kg of straw leavening agent, and adjust the water content of the mixture to 65% and the pH value to 8.0 with deionized water and pH regulator to obtain the mixture, The C / N ratio of the mixture is 25:1.

[0032] Among them, the cow dung comes from a livestock company in Hangzhou, and the cows are fed grass, corn flakes, and concentrates, and the cow dung is collected; the microbial fermentation agent is purchased from Henan Nongfukang Biotechnology Company.

[0033] (2) The mixture obtained in step (1) is composted by field stacks to form a strip stack with a width of 230 cm, a height of 90 cm, and a length of about 2 m. Cover it tightly with an agricultural film, and carry out pre-composting fermentation to ensure that the stack temperature is at 45- 70°C, humidity around 65%. When the temperature reaches ...

Embodiment 2

[0038] Example 2: Vermicompost-based inhibitors are used in the cultivation of lettuce

[0039] The soil for testing was collected in a cultivated farmland in Yuhang District, Hangzhou City, Zhejiang Province. When collecting soil, the soil above 20cm was mainly collected. After natural air drying, the foreign matter was removed and passed through a 2mm sieve. Then the clean red soil was completely submerged in Cu 150mg kg -1 and Zn 320mg·kg -1 In the mixed solution, stir 5 times a day, cultivate for 1 week, air-dry, and pass through a 2mm sieve for later use.

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Abstract

The invention provides an earthworm excrement-based inhibition and control agent for vegetable-field soil Cu / Zn pollution as well as a preparation method and application of the inhibition and controlagent in migration inhibition and control of vegetable-field soil Cu / Zn pollution. The earthworm excrement-based inhibition and control agent is a preparation which has the advantages that raw materials are easy to obtain, and the inhibition and control agent is low in cost, simple in formula and good in application effect, can be prepared from livestock excrement as a main raw material and used as a vegetable-field soil heavy metal inhibition and control agent can, and is of great significance for livestock excrement reclamation and migration inhibition and control of vegetable-field heavy metals; and the earthworm excrement-based inhibition and control agent provided by the invention is environmentally-friendly, possible in on-scale production and convenient to use.

Description

(1) Technical field [0001] The invention relates to a vermicompost-based inhibitor and control agent for Cu / Zn pollution of vegetable soil, a preparation method and application thereof. (2) Background technology [0002] With the continuous development of industrialization and urbanization in our country, the problem of heavy metal pollution in cultivated land caused by industrial and domestic wastewater discharge and sewage irrigation has become increasingly serious. Studies have shown that the soil heavy metal pollution rate of my country's cultivated land is about 16.67%. Based on this, it is inferred that the area of ​​heavy metal pollution in my country's cultivated land accounts for about 1 / 6 of the total cultivated land. Among them, the situation of Cu / Zn pollution in vegetable fields in my country is relatively serious. The study found that among the heavy metals in Chinese vegetable soil, Zn was the highest, followed by Cr, and then Cu. From a national perspective...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/20B01J20/30B09C1/00
CPCB01J20/20B01J20/30B09C1/00
Inventor 朱维琴徐慧婷杜文慧沈旭阳张炜文陈菲菲傅巨阳
Owner HANGZHOU NORMAL UNIVERSITY
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