Technique for utilizing pretilachlor to prevent and remove weedy rice in water-direct-seeding rice field

Abstract

The invention discloses a rice seed soaking agent and a using technique thereof. The rice seed soaking agent is 20% fenclorim EC, is 30mg / L in seed soaking concentration, is high in safety and capable of remarkably reduce phytotoxicity of pretilachlor to rice and can be applied to prevention and control of weedy rice in a water-direct-seeding rice field. Compared with a method of spraying after rice seeding, the rice seed soaking agent and the using technique have the advantages of low consumption, low cost and easiness in operation.

Description

technical field [0001] The invention relates to a rice seed soaking agent and a technology for preventing and controlling weedy rice in water-directed paddy fields. Background technique [0002] The direct-seeding technology of cultivated rice is popular among farmers for its advantages of saving agricultural production costs, lower labor intensity, and early emergence of rice seedlings. In recent years, with the large-scale promotion of this light-type cultivation technology, the area of ​​direct-seeding rice in my country has exceeded 2 million hectares. In addition, with the development of marketization, the advancement of industrialization and urbanization, it will inevitably lead to changes in the structure of the rural labor force. Therefore, adopting water direct seeding is an important way of rice cultivation in my country in the future. [0003] As a time-saving, labor-saving and cost-saving cultivation technology, direct-directed rice has continued to expand its p...

AI Technical Summary

Problems solved by technology

Although this method avoids the occurrence of pretilachlor phytotoxicity accidents, the weedy rice also absorbs the safener to varying degrees, which greatly reduces its control effect

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