Prickly-veined vegetables, also known as peony, are perennial weeds of the genus Asteraceae and are distributed throughout the country. They are mainly harmful to crops such as wheat, cotton, and soybeans. They are highly developed due to their well-developed rhizomes. Prevention is more difficult. Maixi 58 g/litre biflorapyramine suspension had poor efficacy against Peperomia. 2 A 4 chlorine has a certain effect on stab vegetables, can be used after the wheat 4 leaf period before the jointing.
According to the results of field trials conducted by different herbicides on vicious weeds during their field trials in 2011 by Tai Xing City Academy of Agricultural Sciences, Lu Xingtao et al. Hydrophobic agent, 10% tribenuronic-methyl wettable powder, 20% chlorofluoropyrazole EC, 40% flutrioxone water dispersible granules, 25% octanoic benzophenone EC, 10% ECFL, 56% 2 A 4 chlorine soluble powder and 48% azadirachone hydrosol in weeding, the pure drug dosage is 201.6 g, 15 g, 180 g, 30 g, 300 g, 90 g, 800 g, 1000 g/ha. The control effect on the number of broilers in the 30 days after spraying was 70.69%, 44.95%, 19.91%, 28.48%, 38.05%, 64.88%, 43.21%, 29.81%, and the fresh weight control effect was 88.67% and 71.63, respectively. %, 48.95%, 53.07%, 55.24%, 84.69%, 63.84%, 57.54%. Diclofen and ethyl flufenacil have better efficacy on punnets, and wheatgrass, a severe wheat field in which spittles occur, may be preferred for weed control.
Dicamba has a function of internal absorption and conduction. It can be sprayed on the stems and leaves of wheat at the seedling stage. The drug can be quickly absorbed by the stems and leaves of weeds, transmitted upwards and downwards through the phloem, and concentrated on meristems and sites where metabolism is vigorous. , impedes the normal activities of plant hormones, thus killing the weeds. Various annual and perennial diseases such as swine fever, cockroach, cocklebur, pecker, leeks, field spinach, cattle breeding, ephedra japonicus, big nest dishes, etc. Broad-leaved weeds have a good control effect. After 24 hours, the broad-leaved weeds showed symptoms of leaf deformity, curling, etc., and died after 15 to 20 days. Gramineous plants can rapidly metabolize and decompose after taking up the drug, rendering them resistant to drug resistance. It is safer for wheat when it is used in the 4th leaf stage until the jointing stage. It is forbidden to use before and after the 4th leaf stage of wheat. Diclofen is rapidly decomposed by microorganisms in the soil and is safe for post-planting crops.
Ethoxyfluasafe is a post-emergence contact herbicide. When the drug is absorbed by weeds, the original porphyrin oxidase is inhibited, and tetrapyrrole, which is toxic to plant cells, is generated and accumulates. A variety of broad-leaved weeds such as Amaranthidae, Amaranthus, Xanthium, Solanum nigrum, Portulaca oleracea, Commelina gracilis, and Spearmint. The drug has a high speed of action and high activity, and does not affect post-crop crops. The use of ethylfluoroacetate in wheat field is best applied before winter, the amount of medication should not be too large, requiring temperatures above 10 °C, otherwise it is prone to phytotoxicity, causing yellowing of wheat leaves, but generally can recover later.
According to the results of field trials conducted by different herbicides on vicious weeds during their field trials in 2011 by Tai Xing City Academy of Agricultural Sciences, Lu Xingtao et al. Hydrophobic agent, 10% tribenuronic-methyl wettable powder, 20% chlorofluoropyrazole EC, 40% flutrioxone water dispersible granules, 25% octanoic benzophenone EC, 10% ECFL, 56% 2 A 4 chlorine soluble powder and 48% azadirachone hydrosol in weeding, the pure drug dosage is 201.6 g, 15 g, 180 g, 30 g, 300 g, 90 g, 800 g, 1000 g/ha. The control effect on the number of broilers in the 30 days after spraying was 70.69%, 44.95%, 19.91%, 28.48%, 38.05%, 64.88%, 43.21%, 29.81%, and the fresh weight control effect was 88.67% and 71.63, respectively. %, 48.95%, 53.07%, 55.24%, 84.69%, 63.84%, 57.54%. Diclofen and ethyl flufenacil have better efficacy on punnets, and wheatgrass, a severe wheat field in which spittles occur, may be preferred for weed control.
Dicamba has a function of internal absorption and conduction. It can be sprayed on the stems and leaves of wheat at the seedling stage. The drug can be quickly absorbed by the stems and leaves of weeds, transmitted upwards and downwards through the phloem, and concentrated on meristems and sites where metabolism is vigorous. , impedes the normal activities of plant hormones, thus killing the weeds. Various annual and perennial diseases such as swine fever, cockroach, cocklebur, pecker, leeks, field spinach, cattle breeding, ephedra japonicus, big nest dishes, etc. Broad-leaved weeds have a good control effect. After 24 hours, the broad-leaved weeds showed symptoms of leaf deformity, curling, etc., and died after 15 to 20 days. Gramineous plants can rapidly metabolize and decompose after taking up the drug, rendering them resistant to drug resistance. It is safer for wheat when it is used in the 4th leaf stage until the jointing stage. It is forbidden to use before and after the 4th leaf stage of wheat. Diclofen is rapidly decomposed by microorganisms in the soil and is safe for post-planting crops.
Ethoxyfluasafe is a post-emergence contact herbicide. When the drug is absorbed by weeds, the original porphyrin oxidase is inhibited, and tetrapyrrole, which is toxic to plant cells, is generated and accumulates. A variety of broad-leaved weeds such as Amaranthidae, Amaranthus, Xanthium, Solanum nigrum, Portulaca oleracea, Commelina gracilis, and Spearmint. The drug has a high speed of action and high activity, and does not affect post-crop crops. The use of ethylfluoroacetate in wheat field is best applied before winter, the amount of medication should not be too large, requiring temperatures above 10 °C, otherwise it is prone to phytotoxicity, causing yellowing of wheat leaves, but generally can recover later.
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