A special weeding method for direct seeding of upland rice

Abstract

The invention discloses a special weeding method for paddy rice and upland rice by direct seeding. The special weeding method comprises the following steps: (1) sealing soil: adding 250ml of 60% butachlor, 400ml of 48% butralin, 50g of 50% quinclorac, 50g of 2-methyl-4-chloro-phenoxyacetic acid sodium and 100ml of 33% stomp prowl into each 667M<2>; mixing and adding 75kg of water and agitating uniformly; after seeding for 7-10 days, spraying field soil; (2) treating stems and leaves: mixing 250ml of the 60% butachlor, 25g of the 50% quinclorac and 50ml of Basagran into each 667M<2>; mixing and adding 40kg of the water; agitating uniformly; and spraying weeds in sunny days when barnyard grass has two leaves. With the adoption of a formula of a novel special herbicide for the paddy rice and the upland rice, which is directly sown by the method, the preventing and removing effects of weeds concomitant with the upland rice are up to more than 95% and the field weed dangers are basically eliminated; the selectivity is strong and the inhibition and phytotoxicity are not caused on the growth of rice plants after the medicine is applied; and sprouted seedlings are ordered and the fertility is normal.

Description

technical field

[0001] The invention belongs to the field of agricultural technology, and relates to a special weeding method for direct direct seeding of paddy and upland rice. Background technique

[0002] my country is short of water resources, there are many low-lying lands, and there is a shortage of labor force. Upland rice is a water-saving rice agriculture that has developed rapidly in recent years. At present, crops such as corn and soybeans have special herbicides, but there is no special herbicide for upland rice direct seeding, which makes weed damage become the bottleneck of upland rice production and development. The development and application of special herbicide formulations for upland and upland rice direct seeding can effectively prevent and control weeds in the field, eliminate important obstacles to expanding upland rice area and increasing yield, and bring upland rice production into a new leap-forward development stage.

[0003] The herbicidal effect ...