What are the herbicides in paddy fields

In the process of rice planting and growth, it is inevitable to be disturbed by all kinds of weeds, so it is necessary to eat and spray related herbicides. What kind of herbicides are there in the rice field? How do I use it?

Introduction of herbicides and their application in paddy fields:

1. Picosulfuron

Picosulfuron is a sulfonylurea herbicide, which is a selective internal absorption and conduction herbicide with a lasting period of 25-35 days. It is suitable for rice seedling field, direct seeding field and transplanting field. It is generally used in rice 1-3 leaf stage. 15-30 grams of 10% wettable powder is mixed with poisonous soil per mu, and it can also be sprayed with water.

two。 Bensulfuron-methyl

Bensulfuron-methyl is a selective internal absorption and conduction herbicide for the control of 1-year-old and perennial broad-leaved weeds and sedges. Generally, 20-30 grams of 10% wettable powder per mu are used to control perennial weeds and barnyardgrass, and the dosage can be increased to 30-50 grams. 5cm application in aquifer can spray water or sprinkle with fine soil.

3. Butachlor

Butachlor, also known as Marchet and herbicide, is a highly selective herbicide for paddy fields, which is usually sprayed with water 2-3 days before sowing or after emergence. If the seedlings cannot be planted within 3-4 days after soil preparation, it is recommended to apply immediately after soil preparation in order to effectively control the germination of weeds and increase the safety of rice.

4. Prochlor

Prochlor, also known as Saufert, is a highly selective herbicide for rice fields. It is used in direct seeding and seedling fields, first to prepare the soil, and then to sprout and sow. 2-4 days after sowing, irrigate the shallow water layer, use 30% EC 100-115 ml per mu, spray or spread the whole field evenly to 30 kg of water or 20 kg of mixed fine fluvo-aquic soil, keep it moist, and there can be no stagnant water on the field. It is mainly used to control Gramineae weeds.

5. Grass enemy

A paddy field herbicide with internal absorption, 96% EC 100-150 ml per mu, 10 kg of fine soil, evenly spread the soil surface and immediately rake the soil flat.

6. Oxazolyl chlor

Oxazolylchlor is mainly used for weeding in transplanting and direct seeding rice fields. A single dose is sprayed through the foliar.

In addition, dichloroquinolinic acid, grass dan, dimethoxyether, pyrimidine oxime ether, pentafluorosulfonamide, cyhalofoxate, chlorofluoropyloxyacetic acid, dimethyltetrachloro and so on are all herbicides that can be used in paddy fields. Of course, the weeds targeted by each herbicide are different, and the dosage is also different, so we should operate according to the relevant instructions.