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
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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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