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Application of disulfide compound in crop protection

A technology of disulfides and compounds, applied in the field of chemistry

Inactive Publication Date: 2009-12-16
罗山峰
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The real application of disulfide compounds in crop protection has not been reported

Method used

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  • Application of disulfide compound in crop protection
  • Application of disulfide compound in crop protection
  • Application of disulfide compound in crop protection

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Example 1 Divinyl disulfide rapeseed yield increase test

[0033] Divinyl disulfide was formulated into 80% emulsion according to the general method of pesticide preparation.

[0034] The one-acre eight-fen rape field in Tiandong Village, Dongjia Town, Fengcheng City, Jiangxi Province, which had been severely frozen was used as the experimental field, and the four-mu rape field which was also severely frozen was used as the control. On January 18th, February 8th, and February 28th, 2008, the test field was sprayed three times altogether, and each mu was mixed with 15 kilograms of water with 20 ml of the prepared water emulsion; the control field did not spray the diallyl disulfide emulsion.

[0035] Result: The rapeseed after spraying did not die of disease due to freezing damage, and the seeds were plump. The total yield of rapeseed in the experimental field reached 80 catties, while the total output of four mu of rapeseed in the control field was less than 100 cattie...

Embodiment 2

[0036] Example 2 Effects of dimethyl disulfide on growth regulation and quality improvement of spinach and green vegetables

[0037] Dimethyl disulfide was formulated into a 10% concentrated emulsion according to the general method of pesticide preparations.

[0038] The green vegetable and spinach fields in Luolai Shuijia, Zhangfang Xitou Natural Village, Fushan Township, Nanchang County, Jiangxi Province, were sprayed with 100ml of the prepared water emulsion mixed with 15kg of water every 20 days in 2007. The sprayed spinach and green vegetables have thicker leaves, sweet and tender taste, and are on the market 10 days in advance. The spinach and green vegetables of Luo Laishui's family are sold as brand names in the local vegetable market.

Embodiment 3

[0039] Example 3 Soil disinfection and crop growth promotion effect of dibutyl disulfide

[0040] Dibutyl disulfide was formulated into a 30% emulsion according to the general method of pesticide preparations.

[0041] Root rot has occurred in vegetable greenhouses where Henan Academy of Agricultural Sciences has grown cucumbers for many years. At the beginning of June 2007, the experimental area used 80ml of the prepared microemulsion mixed with 15 kg of water to irrigate the roots, irrigated 100-200 ml per plant, and then used the prepared microemulsion of 25 ml mixed with 15 kg of water to spray the leaves once. Root irrigation and spraying will not be carried out in the blank area.

[0042] Results: Until July 4, 2007, the root rot in the experimental area was suppressed, no new diseased plants occurred, and the leaves of cucumbers were tender green; new diseased plants continued to occur in the blank area. The fruit setting in the experimental area was obviously more th...

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Abstract

The invention relates to application of a disulfide compound in crop protection. The invention discloses application of the disulfide compound shown by a structural formula (I) in serving as a plant growth regulator, a soil disinfectant or a pesticide synergist, wherein R1 and R2 independently represent C1-C6 alkyl, C3-C6 cycloalkyl, C2-C6 alkenyl, phenyl, tolyl, benzyl, fnrfuryl and furyl respectively. The disulfide compound can promote the growth and the development of plants, promote the formation of flower buds, improve the fruiting rate, protect fruit growth, improve the yield and the quality, kill bacteria, fungi, viruses and nematodes which are harmful to crops in soil, and reduce the using frequency or the dosage of insecticidal and acaricidal agricultural chemicals. 1 to 90 percent of the disulfide compound in percentage by weight and an agriculturally acceptable auxiliary agent are prepared into wettable powder, emulsions, sprayable solutions, concentrated emulsions, aerosols and seed coatings, and are sprayed after being diluted properly, irrigated to roots or splashed to leaf surfaces, stems, fruits or seeds of crops and soil, thus the disulfide compound is a multifunctional green pesticide.

Description

technical field [0001] The invention relates to the field of chemistry, in particular to the new application of disulfide compounds in crop protection. Background technique [0002] With the increase of population and the decrease of arable land area, the contradiction between food supply and demand in the world has gradually become prominent. How to produce more edible agricultural products on limited land while reducing the use of toxic pesticides has always been the research focus of agricultural scientists. Breeding new varieties of crops with high yield and disease resistance is a solution, but it requires a lot of manpower and material resources, and the research and development process is long. It is also an economical solution to develop low-toxic or non-toxic, residue-free crop growth regulators, soil disinfectants and pesticide synergists. And if a compound has multiple uses, it can not only effectively reduce the cost, but also be more conducive to environmental...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N41/12A01N43/08A01P21/00A01P1/00A01P3/00A01P5/00A01P7/00A01P7/02
Inventor 罗山峰
Owner 罗山峰
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