Green vegetables are non-polluting, high-quality, delicious, nutritious and healthy vegetables. Although herbicides as one of the pesticides are much less toxic to humans and animals than insecticides, we must not lose sight of the effects of herbicides on green vegetable production.
1, according to the type of herbicide selection
1.1 Selected by absorption
Vegetable sites should try to use contact herbicides, such as Er, oxacillin, etc., or use herbicides with poor conductivity in the systemic herbicides, such as herbicide.
1.2 According to the treatment method of herbicide
It is divided into stem and leaf treatment herbicides and soil treatment herbicides. After spraying with herbicides, the herbicides generally do not produce residual effects in the soil; after spraying the herbicides, the residual effect period will be generated in the soil. , from one week to more than one year or longer. This residual effect will cause the sorghum vegetables to not germinate or to die after germination. Therefore, it is strictly forbidden to use sulfonylureas and morpholine herbicides in front of vegetable plots, and it is not suitable to use simazine, oxacilon, etc., which will poison the soil, and try to treat herbicides without stems and leaves. Treat herbicides in soil that does not damage the roots. Paddy fields that have been used quickly are not suitable for vegetable fields.
1.3 Selection from residual considerations
Strictly speaking, after application of the systemic herbicide, there is more or less residue in the germinated body. To this end, vegetable sites should try not to use a systemic chemical herbicide, which can be replaced by biological herbicides, such as the American fungal herbicide Puccinia.
Canall-cuiata can effectively control the sedge of vegetable fields, using Colletrichum
Truneatum prevents marijuana cockroaches and uses C.coccodes to control ramie.
1.4 Selection from its toxicity
Herbicides are classified into four categories: high toxicity, poisoning, low toxicity and microtoxicity. It is strictly forbidden to use high-toxic poisoning herbicides in vegetable fields, and low-toxic and slightly toxic herbicides can be used. However, some herbicides are acute oral and transdermal toxicity are low toxicity, but they are teratogenic, carcinogenic and mutagenic as determined by chronic toxicity. They are also strictly prohibited in vegetable fields such as herbicide ether and cable.
1.5 Selection from the dosage form
Herbicide dosage forms include powders, emulsions, liquids, granules, soluble powders, smoke agents, oils, suspensions and tablets. All kinds of herbicides are added with additives such as solvents and wetting agents. , emulsifiers, suspending agents or stabilizers, etc., the introduction of these additives will increase the toxicity of herbicides, but also increase the possibility of phytotoxicity. Therefore, vegetable ground should try to avoid the use of emulsifiable concentrates, oils, suspensions, smokers and tablets.
1.6 According to the smell and pollution degree
Protected vegetables and greenhouse vegetables should try to avoid the use of herbicides with strong pungent odor. Some herbicides are polluted and contaminated by containers. For example, the use of 2,4-D butyl ester within 200 meters of vegetable ground and 500 meters of downwind may harm vegetables. A sprayer that sprays 2,4-D butyl ester, even if it is cleaned, such as spraying other herbicides on vegetables, it will also hurt vegetables. In addition, butachlor and trifluralin cannot be used in vegetable fields. , killing grass, can not use the herbicide Dan, Wo Da Zhuang around the vegetable field.
2. Select herbicides according to the vegetable category
2.1 Leaf-leaf vegetables include cabbage, cabbage, green leafy vegetables, such as Chinese cabbage, leeks, broccoli, cabbage, celery, lettuce, sage, spinach, leeks, leeks, medlar and so on. Herbicides are not recommended for this type of vegetable. If necessary, Dahuili and Weeding can be used for soil treatment before sowing (celery, lettuce should not use Dahuili) or use Guoer, Cao Cao Ling, Zhi Zhuang No. 2, and soil treatment before planting. In the celery nursery field, the soil can be treated before the seedlings with dextromethorphan, guar and oxacillin; the lettuce and vegetables can be treated with the ger, the grass, and the sapling 2 in the soil before planting; the wormwood and the leeks can be used for weeding. Pre-emergence soil treatment after sowing; can be used in the spinach plots without water wells; after pre-emergence soil treatment with lysamine, this type of vegetable land is not available with sulfonylurea herbicides, and spinach is not available. Oxalamine.
2.2 Liliaceae, root vegetables, yam vegetables, including leeks, garlic, green onions, onions, lilies, small garlic, carrots, kohlrabi, potatoes, ginger, yam and so on. Amaranth has a short growing season, frequent harvesting, and leaf feeding. Try not to use herbicides. If necessary, you can choose the contact-killing micro-toxic herbicide, which is sprayed after the old leeks are harvested; the growth period of garlic, lily, potato, ginger, and yam Long, and mainly edible bulbs, tubers, (garlic edible garlic moss) can be used in the early stage of soil treatment or early post-emergence stems and leaves, can use fruit, garlic grass ether, vegetable Zhuang 2 and so on. Green garlic, green onions, and onions can only be used in the short-term growth period. If the carrots and carrots are used, the herbicides with poor conductivity can be used.
2.3 Solanaceous vegetables, including eggplant, tomato, pepper and other such vegetables should not be treated with stem and leaf treatment. Before transplanting, contact-type soil treatment agent can be used. If it is er, oxacillin or contact, there is slight systemic conduction. The role of the vegetable Zhuang No. 2, Diltiazem.
2.4 melon vegetables, including cucumber, pumpkin, melon, loofah, melon, bitter gourd, bergamot, horned melon and so on. It is strictly forbidden to use acetochlor in this type of vegetables. It is recommended to use weeding, fruit and oxacillin for soil treatment after sowing.
2.5 Beans and vegetables, including kidney beans, cowpeas, raw soybeans, peas, broad beans, and lentils. There are many herbicides suitable for vegetable application, but the herbicide is still the first choice for soil treatment, such as soil treatment with post-emergence seedlings such as dimethoate, vegetable Zhuang No. 1, and oxacillin.
2.6 Aquatic vegetables, including alfalfa, white, and mushrooms. Aquatic vegetables should try not to use herbicides. If necessary, you can use low-toxic Lianzhuang No.1 and Caoxingxing.
2.7 Special vegetables, including asparagus, burdock, lettuce, artichoke, ginger, leeks, malan, chrysanthemum and so on. The fruit can be used for soil treatment before or after transplanting.
3. Weeds based on weed species are divided into three categories: grass, sedge and broadleaf.
3.1 Grasses In the broad-leaved vegetable fields, we can control the grasses, use the nets, kill them, or use the control of the stems and leaves. It can also be treated with Dahuili soil.
3.2 Sedge Grass The soil treatment can be carried out with Sapiron.
3.3 Broadleaf Grass can be treated with low dose ground of Gore and Etoposide.
3.4 Grass + broadleaf grass can be treated with tertamine and herbicide.
3.5 sedge + broadleaf grass can be used to kill stems and leaves before glyphosate.
3.6 Grass + sedge + broadleaf grass can be used in normal amount of fruit grass, or vegetable Zhuang No. 2, vegetable Zhuang No. 1, low quality soil of garlic grass.
4. Select herbicides according to cultivation methods and environmental conditions
4.1 Protected vegetables
The humidity in the protective vegetable membrane is large, which is conducive to the growth of vegetables, and is also conducive to the propagation of weeds. It is preferred to apply the contact-type soil treatment herbicide at low dose before or after sowing.
4.2 Open field vegetables There are many types of herbicides to choose from, and the herbicides introduced in this article can be used.
4.3 Vegetable fields in arid regions
The application of soil treatment herbicides in arid areas cannot be guaranteed, and foliar treatment agents can be used instead. However, the spraying period of the foliar treatment agent should be kept at a sufficient safety interval from the picking period of the vegetables.
4.4 Vegetable fields in rainy areas Rainy areas mainly use soil treatment herbicides, and low doses can be used to control grasses. Stem and leaf herbicides are not recommended.
4.5 For vegetable soils with high organic matter, soil can be used to treat herbicides. It is not recommended to treat herbicides with stems and leaves.
4.6 Barren soil vegetable land Avoid using soil to treat herbicides, but foliar treatment should be kept at a sufficient safety interval from the vegetable picking period before spraying.
1, according to the type of herbicide selection
1.1 Selected by absorption
Vegetable sites should try to use contact herbicides, such as Er, oxacillin, etc., or use herbicides with poor conductivity in the systemic herbicides, such as herbicide.
1.2 According to the treatment method of herbicide
It is divided into stem and leaf treatment herbicides and soil treatment herbicides. After spraying with herbicides, the herbicides generally do not produce residual effects in the soil; after spraying the herbicides, the residual effect period will be generated in the soil. , from one week to more than one year or longer. This residual effect will cause the sorghum vegetables to not germinate or to die after germination. Therefore, it is strictly forbidden to use sulfonylureas and morpholine herbicides in front of vegetable plots, and it is not suitable to use simazine, oxacilon, etc., which will poison the soil, and try to treat herbicides without stems and leaves. Treat herbicides in soil that does not damage the roots. Paddy fields that have been used quickly are not suitable for vegetable fields.
1.3 Selection from residual considerations
Strictly speaking, after application of the systemic herbicide, there is more or less residue in the germinated body. To this end, vegetable sites should try not to use a systemic chemical herbicide, which can be replaced by biological herbicides, such as the American fungal herbicide Puccinia.
Canall-cuiata can effectively control the sedge of vegetable fields, using Colletrichum
Truneatum prevents marijuana cockroaches and uses C.coccodes to control ramie.
1.4 Selection from its toxicity
Herbicides are classified into four categories: high toxicity, poisoning, low toxicity and microtoxicity. It is strictly forbidden to use high-toxic poisoning herbicides in vegetable fields, and low-toxic and slightly toxic herbicides can be used. However, some herbicides are acute oral and transdermal toxicity are low toxicity, but they are teratogenic, carcinogenic and mutagenic as determined by chronic toxicity. They are also strictly prohibited in vegetable fields such as herbicide ether and cable.
1.5 Selection from the dosage form
Herbicide dosage forms include powders, emulsions, liquids, granules, soluble powders, smoke agents, oils, suspensions and tablets. All kinds of herbicides are added with additives such as solvents and wetting agents. , emulsifiers, suspending agents or stabilizers, etc., the introduction of these additives will increase the toxicity of herbicides, but also increase the possibility of phytotoxicity. Therefore, vegetable ground should try to avoid the use of emulsifiable concentrates, oils, suspensions, smokers and tablets.
1.6 According to the smell and pollution degree
Protected vegetables and greenhouse vegetables should try to avoid the use of herbicides with strong pungent odor. Some herbicides are polluted and contaminated by containers. For example, the use of 2,4-D butyl ester within 200 meters of vegetable ground and 500 meters of downwind may harm vegetables. A sprayer that sprays 2,4-D butyl ester, even if it is cleaned, such as spraying other herbicides on vegetables, it will also hurt vegetables. In addition, butachlor and trifluralin cannot be used in vegetable fields. , killing grass, can not use the herbicide Dan, Wo Da Zhuang around the vegetable field.
2. Select herbicides according to the vegetable category
2.1 Leaf-leaf vegetables include cabbage, cabbage, green leafy vegetables, such as Chinese cabbage, leeks, broccoli, cabbage, celery, lettuce, sage, spinach, leeks, leeks, medlar and so on. Herbicides are not recommended for this type of vegetable. If necessary, Dahuili and Weeding can be used for soil treatment before sowing (celery, lettuce should not use Dahuili) or use Guoer, Cao Cao Ling, Zhi Zhuang No. 2, and soil treatment before planting. In the celery nursery field, the soil can be treated before the seedlings with dextromethorphan, guar and oxacillin; the lettuce and vegetables can be treated with the ger, the grass, and the sapling 2 in the soil before planting; the wormwood and the leeks can be used for weeding. Pre-emergence soil treatment after sowing; can be used in the spinach plots without water wells; after pre-emergence soil treatment with lysamine, this type of vegetable land is not available with sulfonylurea herbicides, and spinach is not available. Oxalamine.
2.2 Liliaceae, root vegetables, yam vegetables, including leeks, garlic, green onions, onions, lilies, small garlic, carrots, kohlrabi, potatoes, ginger, yam and so on. Amaranth has a short growing season, frequent harvesting, and leaf feeding. Try not to use herbicides. If necessary, you can choose the contact-killing micro-toxic herbicide, which is sprayed after the old leeks are harvested; the growth period of garlic, lily, potato, ginger, and yam Long, and mainly edible bulbs, tubers, (garlic edible garlic moss) can be used in the early stage of soil treatment or early post-emergence stems and leaves, can use fruit, garlic grass ether, vegetable Zhuang 2 and so on. Green garlic, green onions, and onions can only be used in the short-term growth period. If the carrots and carrots are used, the herbicides with poor conductivity can be used.
2.3 Solanaceous vegetables, including eggplant, tomato, pepper and other such vegetables should not be treated with stem and leaf treatment. Before transplanting, contact-type soil treatment agent can be used. If it is er, oxacillin or contact, there is slight systemic conduction. The role of the vegetable Zhuang No. 2, Diltiazem.
2.4 melon vegetables, including cucumber, pumpkin, melon, loofah, melon, bitter gourd, bergamot, horned melon and so on. It is strictly forbidden to use acetochlor in this type of vegetables. It is recommended to use weeding, fruit and oxacillin for soil treatment after sowing.
2.5 Beans and vegetables, including kidney beans, cowpeas, raw soybeans, peas, broad beans, and lentils. There are many herbicides suitable for vegetable application, but the herbicide is still the first choice for soil treatment, such as soil treatment with post-emergence seedlings such as dimethoate, vegetable Zhuang No. 1, and oxacillin.
2.6 Aquatic vegetables, including alfalfa, white, and mushrooms. Aquatic vegetables should try not to use herbicides. If necessary, you can use low-toxic Lianzhuang No.1 and Caoxingxing.
2.7 Special vegetables, including asparagus, burdock, lettuce, artichoke, ginger, leeks, malan, chrysanthemum and so on. The fruit can be used for soil treatment before or after transplanting.
3. Weeds based on weed species are divided into three categories: grass, sedge and broadleaf.
3.1 Grasses In the broad-leaved vegetable fields, we can control the grasses, use the nets, kill them, or use the control of the stems and leaves. It can also be treated with Dahuili soil.
3.2 Sedge Grass The soil treatment can be carried out with Sapiron.
3.3 Broadleaf Grass can be treated with low dose ground of Gore and Etoposide.
3.4 Grass + broadleaf grass can be treated with tertamine and herbicide.
3.5 sedge + broadleaf grass can be used to kill stems and leaves before glyphosate.
3.6 Grass + sedge + broadleaf grass can be used in normal amount of fruit grass, or vegetable Zhuang No. 2, vegetable Zhuang No. 1, low quality soil of garlic grass.
4. Select herbicides according to cultivation methods and environmental conditions
4.1 Protected vegetables
The humidity in the protective vegetable membrane is large, which is conducive to the growth of vegetables, and is also conducive to the propagation of weeds. It is preferred to apply the contact-type soil treatment herbicide at low dose before or after sowing.
4.2 Open field vegetables There are many types of herbicides to choose from, and the herbicides introduced in this article can be used.
4.3 Vegetable fields in arid regions
The application of soil treatment herbicides in arid areas cannot be guaranteed, and foliar treatment agents can be used instead. However, the spraying period of the foliar treatment agent should be kept at a sufficient safety interval from the picking period of the vegetables.
4.4 Vegetable fields in rainy areas Rainy areas mainly use soil treatment herbicides, and low doses can be used to control grasses. Stem and leaf herbicides are not recommended.
4.5 For vegetable soils with high organic matter, soil can be used to treat herbicides. It is not recommended to treat herbicides with stems and leaves.
4.6 Barren soil vegetable land Avoid using soil to treat herbicides, but foliar treatment should be kept at a sufficient safety interval from the vegetable picking period before spraying.
ã€Comment】 ã€Print this article】 ã€Close this page】 ã€Large, medium and small】
Solid Wheel,Wheelbarrow Solid Wheel,Solid Rubber Wheel
Qingdao Friend New Energy Development CO.,LTD , http://www.friendtyres.com