What herbicides are used for direct broadcast of rice?

Q: The netizen Jianghuai sent a warm e-mail on March 24th: I am an Anhui Mingguang person. I would like to ask the live broadcast of rice, including direct and direct live broadcasting. What are the detailed procedures for sowing and what herbicides should be used?

A: The live artificial water of rice is similar to that of aquaculture. After ploughing the soil, do a ditch with a width of about 2 meters, level the field and sow the grain, or collapse it; or plow it with water, and soil preparation. 3 days, drainage, dragging a sulcus with a stone scullion rope, - forming a rake about 2 meters wide. The flat surface of the field can be wider, and the surface of the field is not too flat, so as to facilitate drainage. The live mechanical water used in some places is planted with live broadcast machinery after site preparation. Most of the water broadcast uses rice seeds that have been soaked and germinated until they are dewy.

Dry rice broadcast is similar to the seed wheat. Artificial dry live broadcasting, generally after ploughing the soil preparation to make a width of 2-4 meters wide, artificial broadcast, covered seeds. The wheat indica rice is live and dry. If the field surface is relatively clean and smooth, and the ditch system is suitable, the rice seeds can be spread without cropping, and then the seeds can be lightly spun; or with rice and wheat sowing machines, the soil spinning, seeding, fertilizing and seed covering can be completed at once. . After sowing, clean up the ditch and fill it with water. Dry rice seedlings can be used in dry direct seeding, and they can be sowed in time after sowing. It is best to use rice seeds that have been soaked and germinated until dew-whitening. This is beneficial to the early emergence of rice seedlings, and the formation of seedling rice plants and small grasses is beneficial to the elimination of condition.

In addition to directing the removal of paddy fields, the general strategy of “one, two killing, three supplements” is adopted. Soil closure was performed by applying the pesticide within 1-3 days after sowing. Water commonly used in rice fields commonly used pretilachlor, butachlor, isoproturon and bensulfuron-methyl, pyrazosulfuron-mixing agent. The direct sowing rice field uses a mixture of butachlor and f-oxatanone, or a mixture of butachlor, pretilachlor, pendimethalin and bensulfuron-methyl and pyrazosulfuron-methyl. Different drugs such as grass pine are also more commonly used. Pay attention to the application of pesticides when the surface of the soil is moist, and keep the soil moist for a week or so after application. The surface of the surface must not contain water, so as to avoid phytotoxicity.

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