Summer soybeans are in high temperature and rainy season. There are many types of weeds and they breed rapidly. They compete with the crops to compete for water and win light, which seriously affect the output. In recent years, we have introduced and promoted herbicides in the field, using an area of ​​50,000 mu. We have introduced 17 kinds of herbicides. In addition to the elimination of nine kinds of pesticides and the recommended use of caution, 8 species are used in a large area and the weeding effect is good. Safety is long-lasting and very popular.
I. Characteristics of Weeds in Soybean Fields Common common annual grasses include grasses, setaria, gold foxtail, crabgrass, wild oats, goosegrass, etc., and annual broad-leaved weeds include cocklebur, cockroach, solanum nigra, and windflower. Iron leeks, water spine needles, wolf's wolfweed, willow spines, sorrel leaves, pig hair grass, grain pods, dodder seed, toed grass, purslane, pig razor clam, broth, burdock, etc., perennial miscellaneous There are grasses such as quill, tickling leeks, oysters, spiny vegetables, and reeds.
From the beginning of sowing until the end of August, weeds continued to occur. Early weeds predominated in the early spring of the year, and weeding and sprouting grasses were commonly used before sowing. In the middle period, the weeds predominate in the late spring and spring of the year, and weed control is mostly used for the management of cultivators. However, due to the limitations of cultivators, weeds can only be eliminated, especially the missing grasses, grasshoppers and ducks. Toucao, Wolfweed, Solanum nigrum, Chinese wolfberry, sorghum, chicory, burdock, giant salamander, reed, etc., enter the rainy season and thrive. In the later period, the plant height exceeds the soybean and the damage is serious.
Second, weed chemical control of soybean herbicide use time can be divided into three types: application before sowing, sowing after emergence before spraying, post-emergence stem and leaf application.
For grasses dominated by grasses, trifluralin and diternamidine may be used before soybean sowing. After sowing can be used before the seedling Seoul, acetochlor, cable, etc., can be used after the seedlings, such as grass plus Ling Wei Pa. In broad-leaved weed-based plots, buds, saikos, etc. can be used before sowing and after sowing, and 2,4-D butyl ester can also be used before seedlings. Kekule can be used after seedlings. Bendazosone, broadleaf leaves and so on. In mixed plots of grass weeds and broad-leaved weeds, trifluralin can be used in combination with bursa prior to sowing. Before sowing, they are mixed with er, acetochlor and chitosan, Guangmailing and 2,4-D. Mixed with butyl ester, post-emergence with Bendazosone, refined grams of grass can, efficient GaiSuoNeng, wolfberry spirit mix. Can also be used before sofluril, ditergic amine or seedling after sowing with Seoul Seoul, acetochlor, post-emergence combination of Benzophenone, Huwei and so on.
There are many types of herbicides for post-emergence shoots and leaves. Commonly used grasses herbicides include refined glycyrrhizin, high-efficient grass cover, valerian grass cover, grass phoenix, and fine quinone spirit. Broad-leaf weed herbicides are available. Kekule, Sailong, Shuaihu and others.
Now introduce several commonly used herbicides:
1,50% acetochlor (Kesheng, Duanze, Jihua products): before sowing herbicides before sowing, the amount of 100-140 grams per mu, watered 30-50 kg, the effect is very satisfactory. However, the effect of weeding is greatly affected by soil moisture, fertility, etc., and the dosage should be reasonably determined. After application, some plot seedlings appeared to have symptoms of heart-leaf and yellow-colored hair. It was a normal phenomenon and returned to normal growth after a few days without any effect. The drug should be stopped two days before the general exhumation. The specific use method should refer to the instructions.
2. High efficiency of grass cover: With its superior weeding effect, it has a large sales volume all over the world, so its price is high and it is widely used.
3, 8.8% Jing Ke grass energy: In addition to broad-leaved grass field weeds, in addition to bean fields, broad-leaved vegetable fields, potatoes and melon fields can be applied. Mu 30-50 ml (Mu 2 bags) watered 30-50 kg, weeds 3-5 leaf spray.
4. Well-being: fast absorption (does not affect the efficacy of the rain after one hour), rapid (grass 3-5 days yellow, 7-10 days of death), safety (safety of crops, no Impact) The three major characteristics are very popular. They can be used on bean fields, peanuts, cotton, and rapeseed. They can also be tested and promoted in broadleaf fields and fruit trees. They can be used alone or mixed with other herbicides. The amount of mu is 30-40. Ml. In addition, the weeds cover, Gailao Ling, and Jing Kui Ling of Beijing produced good weed control effects. The above herbicides were mainly grassy weeds, ie, wheat seedlings, and setaria grasses.
5, silken silk Ling: specifically kill parasitic dodder weeds on plants, with less dosage, good effect, low cost, can solve the artificial difficult to solve the problem.
6, Kekule: In addition to the ideal agent of broadleaf weeds in soybean field, it created a miracle of broadleaf weeds in the soybean field, and we can see weeds yellow until death in 2-3 hours after treatment, but it is the same as acetochlor. There should also be short-term harm. Domestic-made tigers and handsome tiger herbicides have the same weeding effect as Kakule, but their cost is lower and their safety is better. They can be promoted and used. Pay attention to the following points in the process of promotion and use:
(1) Before spreading and applying it in a large area, it is necessary to first test and promote it. According to different types of soil, lyrics, and weeds, the type and amount of the medicine should be strictly selected.
(2) Adding "Gold Synergy" during the preparation process can reduce the dosage, increase the efficacy by 1-5 times, and strongly penetrate. Accelerate the absorption and spray after 2 hours without spraying.
(3) It is prepared by spraying twice and evenly and meticulously sprayed. It does not leak or spray.
(4) It is necessary to purchase and perform technical consultation in the regular pesticide distribution department so as to avoid unnecessary losses.
I. Characteristics of Weeds in Soybean Fields Common common annual grasses include grasses, setaria, gold foxtail, crabgrass, wild oats, goosegrass, etc., and annual broad-leaved weeds include cocklebur, cockroach, solanum nigra, and windflower. Iron leeks, water spine needles, wolf's wolfweed, willow spines, sorrel leaves, pig hair grass, grain pods, dodder seed, toed grass, purslane, pig razor clam, broth, burdock, etc., perennial miscellaneous There are grasses such as quill, tickling leeks, oysters, spiny vegetables, and reeds.
From the beginning of sowing until the end of August, weeds continued to occur. Early weeds predominated in the early spring of the year, and weeding and sprouting grasses were commonly used before sowing. In the middle period, the weeds predominate in the late spring and spring of the year, and weed control is mostly used for the management of cultivators. However, due to the limitations of cultivators, weeds can only be eliminated, especially the missing grasses, grasshoppers and ducks. Toucao, Wolfweed, Solanum nigrum, Chinese wolfberry, sorghum, chicory, burdock, giant salamander, reed, etc., enter the rainy season and thrive. In the later period, the plant height exceeds the soybean and the damage is serious.
Second, weed chemical control of soybean herbicide use time can be divided into three types: application before sowing, sowing after emergence before spraying, post-emergence stem and leaf application.
For grasses dominated by grasses, trifluralin and diternamidine may be used before soybean sowing. After sowing can be used before the seedling Seoul, acetochlor, cable, etc., can be used after the seedlings, such as grass plus Ling Wei Pa. In broad-leaved weed-based plots, buds, saikos, etc. can be used before sowing and after sowing, and 2,4-D butyl ester can also be used before seedlings. Kekule can be used after seedlings. Bendazosone, broadleaf leaves and so on. In mixed plots of grass weeds and broad-leaved weeds, trifluralin can be used in combination with bursa prior to sowing. Before sowing, they are mixed with er, acetochlor and chitosan, Guangmailing and 2,4-D. Mixed with butyl ester, post-emergence with Bendazosone, refined grams of grass can, efficient GaiSuoNeng, wolfberry spirit mix. Can also be used before sofluril, ditergic amine or seedling after sowing with Seoul Seoul, acetochlor, post-emergence combination of Benzophenone, Huwei and so on.
There are many types of herbicides for post-emergence shoots and leaves. Commonly used grasses herbicides include refined glycyrrhizin, high-efficient grass cover, valerian grass cover, grass phoenix, and fine quinone spirit. Broad-leaf weed herbicides are available. Kekule, Sailong, Shuaihu and others.
Now introduce several commonly used herbicides:
1,50% acetochlor (Kesheng, Duanze, Jihua products): before sowing herbicides before sowing, the amount of 100-140 grams per mu, watered 30-50 kg, the effect is very satisfactory. However, the effect of weeding is greatly affected by soil moisture, fertility, etc., and the dosage should be reasonably determined. After application, some plot seedlings appeared to have symptoms of heart-leaf and yellow-colored hair. It was a normal phenomenon and returned to normal growth after a few days without any effect. The drug should be stopped two days before the general exhumation. The specific use method should refer to the instructions.
2. High efficiency of grass cover: With its superior weeding effect, it has a large sales volume all over the world, so its price is high and it is widely used.
3, 8.8% Jing Ke grass energy: In addition to broad-leaved grass field weeds, in addition to bean fields, broad-leaved vegetable fields, potatoes and melon fields can be applied. Mu 30-50 ml (Mu 2 bags) watered 30-50 kg, weeds 3-5 leaf spray.
4. Well-being: fast absorption (does not affect the efficacy of the rain after one hour), rapid (grass 3-5 days yellow, 7-10 days of death), safety (safety of crops, no Impact) The three major characteristics are very popular. They can be used on bean fields, peanuts, cotton, and rapeseed. They can also be tested and promoted in broadleaf fields and fruit trees. They can be used alone or mixed with other herbicides. The amount of mu is 30-40. Ml. In addition, the weeds cover, Gailao Ling, and Jing Kui Ling of Beijing produced good weed control effects. The above herbicides were mainly grassy weeds, ie, wheat seedlings, and setaria grasses.
5, silken silk Ling: specifically kill parasitic dodder weeds on plants, with less dosage, good effect, low cost, can solve the artificial difficult to solve the problem.
6, Kekule: In addition to the ideal agent of broadleaf weeds in soybean field, it created a miracle of broadleaf weeds in the soybean field, and we can see weeds yellow until death in 2-3 hours after treatment, but it is the same as acetochlor. There should also be short-term harm. Domestic-made tigers and handsome tiger herbicides have the same weeding effect as Kakule, but their cost is lower and their safety is better. They can be promoted and used. Pay attention to the following points in the process of promotion and use:
(1) Before spreading and applying it in a large area, it is necessary to first test and promote it. According to different types of soil, lyrics, and weeds, the type and amount of the medicine should be strictly selected.
(2) Adding "Gold Synergy" during the preparation process can reduce the dosage, increase the efficacy by 1-5 times, and strongly penetrate. Accelerate the absorption and spray after 2 hours without spraying.
(3) It is prepared by spraying twice and evenly and meticulously sprayed. It does not leak or spray.
(4) It is necessary to purchase and perform technical consultation in the regular pesticide distribution department so as to avoid unnecessary losses.
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