Composite seed soaking agent for direct-seeding rice and its preparation method, use method and application

Abstract

The invention discloses a composite seed soaking agent for direct-directed rice, a preparation method, a use method and an application thereof, and belongs to the field of rice seed soaking agents. The active ingredients of the direct-seeding rice compound seed soaking agent mainly include paclobutrazol, calcium diphenylureasulfonate and pyrethrin. The invention further discloses the preparation method, use method and application of the direct-seeding rice compound seed soaking agent. The present invention further finds that barnyardgrass extract is added on the basis of compounding paclobutrazol, diphenylureasulfonate calcium and pyrethrin, and the four components have a more significant synergistic effect after being compatible. After direct-seeding rice seeds, the emergence rate increased by 15%-25%, the weed control effect reached 10%-30%, the lodging rate decreased by 70%-90%, the early maturity was 4-6 days, and the yield was increased by 5%-25%. The invention has good effects in improving the seedling emergence rate of direct-seeding rice, reducing the amount of weeds and lodging rate, promoting early maturity and the like.

Description

Technical field [0001] The present invention relates to a seed soaking agent, in particular to a direct-seeding rice composite seed soaking agent using a variety of plant growth regulators and barnyard grass extracts as effective ingredients. The present invention further relates to the direct-seeding rice composite seed soaking agent for improving the emergence rate of rice and reducing weeds. The application in the fields of rice seed soaking agent, such as quantity and lodging rate, and promotion of early maturity. Background technique [0002] Direct-seeding rice (direct-seeding rice) refers to a cultivation technique that eliminates seedling raising, seedling transplanting and transplanting in the process of rice cultivation, and directly sowing the rice seeds into a 1-2cm shallow soil layer. It is the same as traditional seedling raising, seedling transplanting and transplanting. In comparison, it has the advantages of saving seeds, seedling fields, labor, labor, and invest...

AI Technical Summary

Problems solved by technology

[0004] CN103478141 B discloses a novel composite balanced plant growth regulator, which mainly includes gibberellin, cytokinin, sodium binitrate, brassinolide, paclobutrazol, abscisic acid, indole acetic acid and other plant growth regulators , the plant growth regulator has good effects in promoting plant growth, improving crop yield and quality, resisting invasion of foreign diseases and insect pests, etc., but lacks obvious effects in reducing rice lodging rate and promoting rice early maturity

CN101434500 B discloses a bio-organic fertilizer containing plant charcoal, which contains gibberellin, cytokinin, ethephon, kinetin, 2,4-D, indolebutyric acid, naphthalene acetic acid, chlormequat, green fresh The bio-organic fertilizer can make the crops grow vigorously, the roots are developed, the leaves are lush, the fruits are plump, and the quality is good. It can improve soil physical and chemical conditions and increase soil fertility. Long-term use can resist drought and flood, lodging, and pests and diseases. However, this bio-organic fertilizer has basically no effect on reducing the amount of weeds and promoting early maturity of rice.

CN102870766 B discloses a biologically active plant synergistic nutrition preservation concentrate, which contains various plant growth regulators such as gibberellin and paclobutrazol. This product can inhibit the erosion of plant diseases and insect pests, promote plant growth and nutrient delivery, but for reducing There was no effect on the amount of weeds, reduction in lodging rate, etc.

[0005] For the problems of difficult emergence, heavy weeds, easy lodging, and late maturity in the cultivation of direct-directed rice, there is a lack of a seed soaking agent that can effectively solve these technical problems. It is urgent to develop a method that can improve the emergence rate of direct-directed rice and reduce Amount of weeds and lodging rate, seed soaking agent for promoting early maturation of direct-seeded rice