Direct-sowing rice compound seed soaking agent as well as preparation method, use method and application thereof

Abstract

The invention discloses a direct-sowing rice compound seed soaking agent as well as a preparation method, use method and application thereof, belonging to the field of rice seed soaking agents. The direct-sowing rice compound seed soaking agent mainly comprises the following effective ingredients: paclobutrazol, diphenylurea sulfonic calcium and bachmedesh. The invention further discloses a preparation method, use method and application of the direct-sowing rice compound seed soaking agent. The invention further discovers that a barnyard grass leaching solution is added on the basis of paclobutrazol, diphenylurea sulfonic calcium and bachmedesh, and the four ingredients are blended to have more obvious synergistic effects. After direct-sowing rice seeds are treated by the direct-sowing rice compound seed soaking agent, the rate of emergence is increased by 15-25%, the weed control effect reaches 10-30%, the lodging rate is reduced by 70-90%, the seeds mature early by 4-6 days, and the yield is increased by 5-25%. The direct-sowing rice compound seed soaking agent disclosed by the invention has good effects in the aspects of increasing the rate of emergence of the direct-sowing rice, reducing the weed quantity 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 compound seed soaking agent for direct-seeding rice with various plant growth regulators and barnyard grass extract as active ingredients. The application in aspects such as quantity and lodging rate, early maturity promotion, etc. belongs to the field of rice soaking agent. Background technique [0002] Direct-seeding rice (rice direct-broadcasting) refers to the cultivation technology that directly sows rice seeds into the shallow soil layer of 1-2 cm without the operation of raising seedlings, pulling seedlings and transplanting in the process of rice cultivation, which is different from the traditional operation methods of raising seedlings, pulling seedlings and transplanting Compared with it, it has the advantages of saving planting, saving seedling fields, saving labor, saving labor, and saving investment. The live broadcast method is increasingly adopted by large growers...

AI Technical Summary

Problems solved by technology

[0004] CN103478141B discloses a novel composite balanced plant growth regulator, which mainly includes gibberellin, cytokinin, double sodium nitrate, 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 early maturity of rice.

CN101434500B discloses a bio-organic fertilizer containing plant charcoal, which contains gibberellin, cytokinin, ethephon, kinetin, 2,4-D, indolebutyric acid, naphthaleneacetic acid, chlormequat, and penicillin , brassinolide, paclobutrazol, sodium nitrophenolate, DA-6 and other plant growth regulators. This bio-organic fertilizer can make crops grow vigorously, have well-developed roots, lush leaves, plump fruits, and good quality. Improve soil physical and chemical conditions, increase soil fertility, and 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.

CN102870766B discloses a biologically active plant synergistic nutritional fresh-keeping concentrate, which contains various plant growth regulators such as gibberellin and paclobutrazol. There is no effect on the amount of grass, the reduction of 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