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Method for degrading long residual herbicide chlorimuron-ethyl in bean field by adopting biological organic fertilizer

A technology of bio-organic fertilizer and tosulfuron-methyl, applied in fertilization methods, botanical equipment and methods, applications, etc., can solve the problems of poor biodegradation effect, achieve good effect, reduce harm, and have good biodegradation effect

Inactive Publication Date: 2011-10-19
黑龙江省科学院生物肥料研究中心
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to solve the problem of poor biodegradation effect of the soybean field long residual herbicide tosulfuron-methyl, and to provide a method for using bio-organic fertilizers to degrade the soybean field long residual herbicide tosulfuron-methyl

Method used

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  • Method for degrading long residual herbicide chlorimuron-ethyl in bean field by adopting biological organic fertilizer
  • Method for degrading long residual herbicide chlorimuron-ethyl in bean field by adopting biological organic fertilizer
  • Method for degrading long residual herbicide chlorimuron-ethyl in bean field by adopting biological organic fertilizer

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specific Embodiment approach 1

[0008] Specific implementation mode 1: In this implementation mode, the method of degrading soybean field long residual herbicide tosulfuron-methyl by bio-organic fertilizer is carried out according to the following process: Ridging, applying base fertilizer, sowing Dongnong No. 42 soybean and spraying soybean Sulfuron-methyl, and then routinely managed until the soybeans are harvested, that is, bio-organic fertilizers are used to degrade the long-residual herbicide toysulfuron-methyl in soybean fields; the application amount of the base fertilizer is 2-8Kg Lvgong brand bio-fertilizer, 5Kg urea and 15Kg hydrogen phosphate per mu Diammonium; the amount of spraying tasulfuron-methyl is 15g per mu of land.

specific Embodiment approach 2

[0009] Embodiment 2: The difference between this embodiment and Embodiment 1 is that Lvgong brand bio-fertilizer is purchased from Lufeng Bio-Organic Fertilizer Company, and the number of viable bacteria is ≥80 million / g. Other steps and parameters are the same as those in Embodiment 1.

[0010] In the present embodiment, Lvgong brand biological fertilizer is a granular fertilizer with a diameter of 2 to 4 mm, containing four kinds of bacteria, Azotobacter rufosa: Bacillus megaterium: Streptomyces luteus: Bacillus colioids=1:1:1:1 (Volume ratio).

[0011] These bacteria in the present embodiment contain 500mg·L -1 Trisulfuron-methyl grew well in the inorganic salt medium. After 12 hours, 83% of soysulfuron-methyl remained, and 50% of soysulfuron-methyl was degraded after 36 hours. After that, the growth rate of microorganisms slowed down, and the degradation rate of soysulfuron-methyl also began to slow down; However, the residual rate of chlorimuron-methyl tended to 0 after...

specific Embodiment approach 3

[0012] Specific implementation mode three: this implementation mode uses bio-organic fertilizers to degrade soybean field long residual herbicide method according to the following process: every year in the first ten days of May, carry out ridging successively, apply base fertilizer, sow Dongnong No. 42 soybeans and spray soybeans Sulfur-methyl, and then routinely plant soybeans to harvest, that is to say, use bio-organic fertilizers to degrade the long-residual herbicide toysulfuron-methyl in soybean fields; the application amount of the base fertilizer is 2Kg Lvgong brand bio-fertilizer, 5Kg urea and 15Kg diammonium hydrogen phosphate per mu ; The amount of spraying soysulfuron-methyl is 15g per mu of land.

[0013] The experimental land of this embodiment is the suburb of Harbin, and the usable area is 1200 square meters.

[0014] In the present embodiment, the ridges are raised on May 7, the base fertilizer is applied and sown on the 10th, and tasulfuron is sprayed on the ...

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Abstract

The invention discloses a method for degrading long residual herbicide chlorimuron-ethyl in a bean field by adopting a biological organic fertilizer, and relates to a method for degrading chlorimuron-ethyl. The method solves the problem of poor biodegradable effect in the treatment of the long residual herbicide chlorimuron-ethyl in the bean field. The method comprises the following steps of: sequentially ridging, applying a base fertilizer, sowing Dongnong No.42 soybean and spraying chlorimuron-ethyl in the first ten days of May every year, and then performing conventional management till the soybean is harvested. The adopted biological organic fertilizer contains actinomycetes (streptomyces microflavus), and the actinomycetes (streptomyces microflavus) has good effect of degrading sulfonylurea herbicides and can thoroughly solve product and environmental pollution caused by the chlorimuron-ethyl and metabolic products thereof under the synergistic action of azotobocter chroococcum, bacillus megatherium and bacillus mucilaginosus so as to lighten or eliminate the harm to subsequent crops; and the residual quantity of the chlorimuron-ethyl in the bean field after the soybean is harvested is 0.25 to 1.6ppb, and the biodegradable effect is good.

Description

technical field [0001] The invention relates to a method for degrading tasulfuron-methyl. Background technique [0002] Soybean is the main economic crop in Heilongjiang Province. The application of sulfonylurea herbicide tasulfuron-methyl in soybean field weeding accounts for the vast majority. The residue of sulfonylurea in the product is unavoidable. Since there are many subsequent crops that are sensitive to it, The harm caused is serious, and due to the widespread use of soybean cropping agents in recent years, continuous cropping of soybeans has become very common, so the long residue of soysulfuron has seriously affected the safety of agricultural production and the sustainable development of agriculture in Heilongjiang Province. At present, there are degrading bacteria There are reports on the biodegradation of long-residue herbicides, but there is a problem of single strain and poor effect. In recent years, developed countries such as the United States and Japan ha...

Claims

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Application Information

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IPC IPC(8): A01C21/00A01G1/00C05G1/00
Inventor 迟君道樊川张欣
Owner 黑龙江省科学院生物肥料研究中心
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