What are the common weeds in the white field? How to prevent it?

According to the survey of the Plant Protection Station of the Ministry of Agriculture in recent years, there are 580 species of common weeds in China's farmland, including 129 species of paddy field weeds, accounting for 22%; There were 24 species of weeds in the water and dry fields, accounting for 4%. The common weeds in the field include Eyeweed, Broken Rice Sedge, Snakehead Intestine, Four-leaf Ping, Miscanthus longensis, Barnyard Grass, Hollow Lotus Seed Grass, Arthropod Grass, Duck Tongue Grass, Big Wolf Grass, Wild Aunt, Dwarf Herb, Bitter Grass, Duckweed, etc., but the types of damage are different in different regions, different years and different periods. The control should be carried out before planting (newly planted fields) or before germination (double-season or single-season cultivated by perennial plants), and the main measures include:

Combined with ploughing and land preparation, remove weeds in the field and around the field, and achieve a clean field. Manual removal, especially in the early stage of weeds or when weeds are less occurring, should be used to manually remove weeds in the field. Apply herbicides, before the germination of white plants in spring, use 50 grams of 50% promethonet wettable powder per mu, and spray 40 50 kg of water.

After transplanting and returning to green, when the weeds germinate, 15 25 grams of 15 25 grams of 10% benzylsulfuron (nongde) wettable powder per mu were mixed with fine soil or 15 kg of composite granular fertilizer and sprinkled between the rows of cocoon; You can also use 100 ml of 50% butachlor EC to spray 50 kg of water, or 100 ml of 50% butachlor EC mixed with 30 kg of fine soil and sprinkle, and maintain a water depth of 3 4 cm within 3 5 days after use. After harvesting, the water was drained, and 100 ml of 50% acetochlor emulsifiable concentrate was used per mu to spray 40 50 kg of water on the topsoil. In addition, when duckweed occurs, with top dressing, ammonium bicarbonate or urea is sprinkled on duckweed, which can simulate its growth.

However, keeping duckweed during pregnancy is conducive to creating a low temperature environment and promoting pregnancy.

The common weeds in the white field are: Manjianghong, hollow lotus seed grass, knotweed, duck tongue grass, ghost needle grass, eye cabbage, broken rice sedge, snakehead intestine, Qianjinzi and so on.

The control technology is that before the budding and regreening of the white callus, 50 grams of 50% promethony wettable powder per mu, 40 50 kg of water are added to spray or 20 30 kg of fine soil is sprinkled. When the seedlings are tillered in large quantities, spray with 70% 2 methyl 4 chloro wettable powder 75 100 grams and 40 50 kg of water after draining the field water, and dry it for one day. After transplanting and surviving, 100 150 ml of 60% butachlor emulsifiable concentrate per mu was added with 40 50 kg of water spray or mixed with fertilizer to sprinkle, and the field was kept 3 5 cm water layer for 2 3 days after application, and the water surface did not exceed the white heart of the callus; Or use 40 grams of 20% straw per mu to mix 20 kg of fine soil and sprinkle it between the white rows of cocoons, and maintain a water depth of 10 cm in the field.

It is a common wild pest, which may cause great harm to crops, including robbing nutrients, water and sunlight, and affecting the growth and development of crops. The following herbicides can be used to control Wild Callus white:

Glyphosate: Glyphosate is a broad-spectrum, non-selective herbicide with a strong herbicidal effect. Its working principle is to interfere with the growth and metabolic process of plants by destroying the aromatic amino acid pathway in plants, so as to achieve the purpose of killing Wild Callus white.

Paraquat: Paraquat is a contact, non-selective herbicide that kills leaves and shoots quickly. Unlike glyphosate, tobacco can directly damage plant cell membranes and leaf epidermal tissue, causing the plant to lose its vitality.

2,4-dichlorophenoxyacetic acid (2,4-d):2,4-d is a selective herbicide of herbaceous plants, which can effectively control some weeds. Its main mechanism of action is to mimic the action of auxin, which causes metabolic disorders in plants, resulting in the inhibition of the growth of Rhizome.

It should be noted that the use of herbicides needs to be carried out strictly in accordance with the provisions of the product instructions to avoid negative effects on crops and the environment. At the same time, it is also necessary to pay attention to reasonable application of pesticides to reduce residue problems and ensure food safety and environmental health.

It is a grass plant and can be treated with targeted herbicides. Broad-spectrum herbicides, such as glyphosate, can also be used.

If it's wild.

Atrazine plus paraquat can be removed. Wild cocoon can be killed with glyphosate and Biaoge herbicides.

The most environmentally friendly and effective way is to remove it manually. It is a gramaceae, which can be removed by covering grass, killing with fine and stable grass, and can also be killed with glyphosate and gram.

Hope mine can help you [hee-hee].

There are currently no specific herbicides used in ponds.

You can spray some pesticides at different stages of the growth of the white water, or proper irrigation and fertilization, so that more weeds can be avoided, mixed planting can be adopted, and some weeding tools can be used to pull out, local irrigation can also be used, and some plastic film can also be used.

Generally, special herbicides can be used for weeding, the speed is also very fast, and you can also use manpower, although it is more tiring, but the treatment is very clean.

The weeds of Callus baitian are similar to those of paddy fields, mainly including barnyard grass, duck tongue grass, heteromorphic sedge, melon peel grass, eye weed, water sedge, flat stalk grass, etc. (1) Agricultural weeding combined with ploughing and land preparation, removing weeds in the field and around the field, and cleaning the field. Especially in the early stage of weeds or the period when weeds are less occurring, it is advisable to use manual removal of weeds in the field (2) Biological control of ducks, carp, grass carp, Chinese glimpses, etc., can not only control the growth of weeds, but also increase the fertility of the white field.

3) Chemical control: weeding after transplanting live trees or soil treatment at the budding stage of cocoonal weeds.

You can spray some pesticides and pull them out by hand, because then it will be easy to pull, but it is a time-consuming thing. If you want to be convenient, you can use a professional weeding machine to weed, which is very fast and effective, and many families do this.

Some pesticides can be used for weeding, stir the pesticides well, and then spray them on these weeds, being careful not to spray the plants when spraying.

During the marketing period of May-June and September-October, weeds grow fast and are easy to form grass damage, so chemical herbicides should be selected according to local conditions for early control.

1-2 days before the germination of the white water, 500-750 ml of 25 herbicidal ether emulsifiable concentrate, or 500 ml of 25 herbicidal ether emulsifiable concentrate, 50 grams of 50 grams of promethonet wettable powder per mu, 40-50 kg of water spray or 20-30 kg of fine soil are used. When the seedlings are tillered in large quantities, after draining the field water, spray with 70 2 methyl 4 chloride wettable powder 75-100 grams and 40-50 kg of water, and dry for one day after application. After transplanting and surviving, 100-150 ml of 60 butachlor emulsifiable concentrate per mu was added with 40-50 kg of water spray or mixed fertilizer to sprinkle, and the 3-5 cm water layer was maintained in the field for 2-3 days, and the water surface did not exceed the white heart leaves; Or use 20 grams of straw per mu to mix 20 kg of fine soil and sprinkle it between the white rows of cocoons, and maintain a water depth of 10 cm in the field.

After the autumn harvest, 100-150 ml of 50 acetochlor emulsifiable concentrate per mu is used, and 40-50 kg of water is added to spray the topsoil to prevent and remove annual grass weeds and broad-leaved weeds such as quinoa and chickweed. After transplanting and returning to green, when the weeds germinate, 15-25 grams of 15-25 grams of wettable powder per mu should be mixed with fine soil or 15 kg of compound granular fertilizer and sprinkled between the rows of the white cocoon to prevent and remove broad-leaved weeds such as cow felt and duck tongue grass. When applying pesticides, keep a 3-4 cm water layer in the field for 3-4 days.

After the tillers of the cocoon, when the weeds are all over the field, spray with 150-250 ml of 48 benzasolone water agent and 40-50 kg of water per mu to prevent broad-leaved weeds and sedges, and it is safe for the white. Dry the field water when spraying, and irrigate after 24 hours of spraying.