Extract of invasive weed annual fleabane herb, preparation method of extract and application of extract in killing gramineous weeds

A technology for extracting liquid and weeds, applied in the direction of botany equipment and methods, applications, herbicides and algicides, etc., can solve the problems of chemical herbicides entering, ecological and environmental pollution, endangering human and animal health, etc., and achieve good results , Promote the effect of safe and sustainable development

Inactive Publication Date: 2020-10-30
JIANGSU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the use of chemical herbicides will not only cause pesticide residues on crops and endanger the health of humans and animals, but also cause long-term and wider ecological and environmental pollution by chemical herbicides entering the soil and rivers through the erosion of rainwater.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] (1) Collect the adult fresh plants of the annual poncho and uproot them, shake off the soil and dry them in the sun. Divide the plants into the above-ground stem and leaf parts and underground roots. Take the stem and leaf parts and cut them into small pieces. Take 2 kg of stem-leaf fragments and use 10L Soak in tap water and stir frequently during the soaking period. After soaking for 3 days, filter the stem and leaf debris with gauze, and heat and evaporate the stem and leaf extract obtained by heating and evaporating until the volume is concentrated by half. The stem and leaf extract of the annual florida.

[0027] (2) directly apply the prepared one-year-old stem and leaf extract to the distribution area of ​​gramineous weed seedlings in the field in early spring, and the application amount is 2L m -2 , Do not apply the extract in rainy weather to prevent the extract from being washed by rain and lose the best effect of killing weed seedlings. Apply once a week, an...

Embodiment 2

[0029] (1) Collect the adult fresh plants of the annual poncho and uproot them, shake off the soil and dry them in the sun. Divide the plants into the above-ground stem and leaf parts and underground roots. Take the stem and leaf parts and cut them into small pieces. Take 4 kg of stem-leaf fragments and use 10L Soak in tap water and stir frequently during the soaking period. After soaking for 5 days, remove the stem and leaf debris by filtering with gauze, and heat and evaporate the obtained annunculus extract until the volume is concentrated by half. Stem and leaf extract of annual phlox.

[0030] (2) The prepared one-year-old stem and leaf extract is directly applied to the distribution area of ​​gramineous weed seedlings in the field in early spring, and the active ingredient concentration is 4L m -2 , Do not apply the extract in rainy weather to prevent the extract from being washed by rain and lose the best effect of killing weed seedlings. Apply once a week, and the gra...

Embodiment 3

[0032] (1) Collect the fresh adult plants of the annual poncho and uproot them, shake off the soil and dry them in the sun, divide the plants into the stems and leaves on the ground and the underground roots, take the underground roots and cut them into small pieces, take 2 kg of root fragments and soak them in 10L of tap water, Stir frequently during this period, and after soaking for 3 days, filter and remove the root fragments with gauze, and heat and evaporate the obtained Annua punctatus extract until the volume is concentrated by half, and then obtain an Annua phalaenopsis root extract with a root fragment soaking concentration of 400g / L .

[0033] (2) directly apply the prepared one-year-old root extract to the distribution area of ​​gramineous weed seedlings in the field in early spring, and apply the active ingredient concentration to be 2L m -2 , Do not apply the extract in rainy weather, in case the extract is washed by rain and loses the best effect of killing weed...

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PUM

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Abstract

The invention provides an extract of an invasive weed, namely annual fleabane herb, a preparation method of the extract and application of the extract in killing gramineous weeds. The method comprisesthe following steps: soaking underground roots or stems and leaves of annual fleabane herb in water for 3-5 days, removing root blocks or stems and leaves, heating and evaporating the obtained extract for concentration until the volume of the extract is halved, and cooling the extract for later use. The annual fleabane herb extract is applied to and used for watering a gramineous weed distribution area of field to directly kill gramineous weeds in farmland. The invention relates to an environment-friendly technology for killing farmland weeds by utilizing invasive plant resources. The annualfleabane herb is wide in distribution and extremely easy to obtain, and the method for preparing the extract is simple in process, easy to operate and extremely low in cost; the annual fleabane herb extract has a good effect of killing gramineous weeds in farmland; and no pollution is caused to the environment, and green, environment-friendly and sustainable ecological agricultural development canbe realized.

Description

technical field [0001] The invention belongs to the technical field of ecological agriculture, and in particular relates to an application method of the foreign invasive weed annual cape in killing grass weed seedlings in farmland. Background technique [0002] Among the weeds distributed in farmland, gramineous weeds are the most common weed species except Compositae weeds. Gramineae weeds grow rapidly, and their morphology and biological characteristics are similar to gramineous crops. Therefore, in farmland Difficult to remove. At present, the main method of removing grass weeds in farmland in my country is chemical weeding. However, the use of chemical herbicides will not only cause pesticide residues on crops and endanger the health of humans and animals, but also cause long-term and wider ecological and environmental pollution when chemical herbicides enter the soil and rivers through the erosion of rainwater. The use of biological herbicides has the characteristics ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N65/12A01P13/00
CPCA01N65/00A01N65/12
Inventor 祁珊珊贺芙蓉戴志聪夏维康付卫国杜道林
Owner JIANGSU UNIV
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