Soybean field herbicide formula, when to hit the herbicide is good

The formula of herbicide for soybean field is acetochlor 2kg+ fomesafen 1.5kg+ thiensulfuron 20g/mu, which can be applied after sowing and before emergence of soybean, or in 3-5 leaf stage of weed, and the herbicide should be sprayed evenly, generally suitable for sunny or cloudy days, no wind or breeze below grade 3, temperature stability above 10℃, and no dew on leaf surface.

1. Formula of herbicide for soybean field

Generally, acetochlor 2kg+ fomesafen 1.5kg+ thiensulfuron 20g per mu can effectively control weeds in soybean fields.

Second, when to apply herbicides in soybean fields

Herbicide can be applied before emergence after soybean sowing, or stem and leaf treatment can be carried out at 3-5 leaf stage of weeds. The pesticide spraying should be uniform. Generally, it is suitable for spraying herbicide on sunny or cloudy days, no wind or breeze below Grade 3, temperature stability above 10℃, and no dew on leaf surface.

3. Main classification of soybeans

1. Yellow soybeans

Yellow soybean is a widely cultivated variety of soybean. Yellow soybean is often used to make various soybean products, brew soy sauce and extract protein. Bean dregs or coarse powder are also often used as livestock feed.

2. Green soybeans

(1) Green soybean is a kind of soybean with green seed coat. According to the color of cotyledon, it can be divided into two kinds: green soybean with green kernel and yellow soybean with green kernel.

(2) Green soybean is rich in unsaturated fatty acids and soybean phospholipids, rich in saponin, protease inhibitors, isoflavones, molybdenum, selenium and other anti-cancer ingredients, rich in protein and fiber, it is also one of the main sources of vitamin A, vitamin C and vitamin K intake by human body, as well as vitamin B.

3. Black soybeans

Black soybean is the black seed of leguminous plant soybean, also known as Lu bean, black bean, etc., sweet and flat, black soybean has high protein, low calorie characteristics, black skin, yellow or green inside.

4. Feed beans

The seeds of forage beans are small, flat and long oval, with concave dots on 2 leaves, and the seed coat is slightly shiny or dull.

IV. Distribution range of soybeans

1. Soybean is native to China. It is planted all over China and widely planted all over the world. Soybean is one of the important food crops in China. It has a planting history of 5000 years. It is called Shu in ancient times. Northeast China is the main producing area.

2. Soybean likes warm sex. Seeds begin to germinate at 10-12℃, the optimum temperature for growth is 20-25℃, the optimum temperature for flowering and pod setting is 20-28℃, pod setting is delayed at low temperature, and flowers cannot be opened below 14℃. If the temperature is too high, the plant will end growth ahead of time.

3, seed germination requires more water, flowering stage requires soil moisture content of 70%-80%, otherwise the bud shedding rate increases, soybean before flowering fertilizer absorption is less than 15% of the total amount, and flowering pod stage accounts for more than 80% of the total fertilizer absorption.