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Plant-sourced liquid weedicide and preparation method thereof

A herbicide, plant extract technology, applied in the directions of botanical equipment and methods, plant growth regulators, herbicides and algicides, etc., can solve the threats to environmental security and sustainable agricultural development, chemical herbicides destroy agricultural ecology and other problems, to achieve the effect of easy degradation and volatilization, good control effect and good weed growth

Active Publication Date: 2018-06-15
郑州谷维尔生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, 447 biotypes of 244 (142 dicotyledonous and 102 monocotyledonous) weed species have been found to be resistant to 156 chemical herbicides in 22 types of action sites worldwide.
At the same time, the residue of chemical herbicides in the soil destroys the agricultural ecology, which poses a huge threat to environmental safety and sustainable agricultural development.

Method used

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  • Plant-sourced liquid weedicide and preparation method thereof
  • Plant-sourced liquid weedicide and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] A plant-derived liquid herbicide, consisting of the following raw materials: plant extract 30%, sodium lauryl sulfate 0.1%, SP-SC3266 (Jiangsu Qingyu Chemical Technology Co., Ltd.) 1%, white carbon black 0.8%, silicon 0.05% magnesium aluminum acid, 0.02% simethicone oil, and the balance is water.

[0017] The preparation method of plant extract liquid, the white magnolia leaf, lilac leaf and maple poplar leaf are mixed, and the fresh mass ratio of three kinds of plant leaf is 1:1:1, grinds and crosses 40 mesh sieves (leaves active ingredient is fully released in solution ), after soaking with clear water for 24h, filter through 4 layers of gauze, retain the filtrate, and rotate the filtrate with a rotary evaporator to obtain a plant extract with a concentration of 500g / L (fresh mass / volume).

[0018] The conditions of rotary evaporation are: temperature 50° C., pressure 1800 psi.

Embodiment 2

[0020] A plant-derived liquid herbicide, which is composed of the following raw materials: plant extract 30%, L-malic acid 10%, sodium lauryl sulfate 0.1%, SP-SC3266 1%, white carbon black 0.8%, magnesium silicate 0.05% of aluminum, 0.02% of simethicone oil, and the balance is water.

[0021] The preparation method of the plant extract is the same as in Example 1, except that the conditions of rotary steaming are: temperature 60° C., pressure 1600 psi.

Embodiment 3

[0023] A plant-derived liquid herbicide, consisting of the following raw materials: plant extract 30%, citric acid 10%, sodium lauryl sulfate 0.1%, SP-SC3266 1%, white carbon black 0.8%, magnesium aluminum silicate 0.05 %, simethicone oil 0.02%, and the balance is water.

[0024] The preparation method of the plant extract is the same as in Example 1, except that the conditions of rotary steaming are: temperature 70° C., pressure 1400 psi.

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Abstract

The invention discloses a plant-sourced liquid weedicide and a preparation method thereof. With natural plant leaves as raw materials, michelia alba leaves, lilac leaves and pterocarya stenoptera leave are ground and then immersed in clear water to obtain a mixed solution of plant active components. The natural plant active components contained in the plant-sourced liquid weedicide are degraded and volatilized very easily, do not pollute the environment, are environment-friendly and have a good effect of inhibiting weed growth, and the plant-sourced liquid weedicide can be applied to both grassy weeds and broad-leaved weeds and also has a good control effect on weeds resistant to chemical weedicides such as glyphosate. Tests show that the fresh fruit mass control effects of the plant-sourced liquid weedicide on bromegrass, ryegrass and bluegrass are 90.88%, 93.23% and 91.05% respectively, the fresh mass control effects thereof on sisymbrium sophia and lithospermum arvense are 90.78% and 92.34% respectively, and namely, the plant-sourced liquid weedicide has a relatively good control effect on both the grassy weeds and the broad-leaved weeds, has the fresh mass control effects higher than 90% and can be popularized and applied as a biological weedicide on a large scale.

Description

technical field [0001] The invention relates to a plant source liquid herbicide, in particular to a liquid herbicide using plant source extract and a preparation method thereof. Background technique [0002] Weeds are one of the three pests of agricultural production. Weeds compete with crops for growth space, affect the normal growth of crops, reduce crop yields, and cause huge losses to agricultural production. The discovery and large-scale application of organic chemical herbicides have made great contributions to ensuring the security of global food production. Among them, glyphosate, namely N-(phosphinecarboxymethyl)glycine, is currently the most widely used herbicide. Especially after 1996, the use of glyphosate has occupied nearly 20% of the global pesticide market, with annual sales exceeding US$2 billion. Herbicides account for more than 50% of the total pesticide market. However, 447 biotypes of 244 (142 dicotyledonous and 102 monocotyledonous) weeds have been f...

Claims

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Application Information

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IPC IPC(8): A01N65/08A01P13/00
CPCA01N65/00A01N65/08
Inventor 郭予琦田一迪冯鑫刘明锦席宇田曾元郭馨鑫史团省
Owner 郑州谷维尔生物科技有限公司
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