A sesame defoliation and ripening agent and its application method

Abstract

The invention discloses a sesame defoliating and ripening agent and an application method thereof. The sesame defoliating and ripening agent is prepared by compounding thidiazuron, sodium hydrogen carbonate and methyl jasmonate, and has the characteristics of being quick in taking effect, obvious in ripening acceleration effect and thorough in defoliating. An ideal effect can be achieved by spraying the sesame defoliating and ripening agent in the 10-15 days before harvesting; the sesame defoliating and ripening agent can effectively promote the ripening of fruit pods at the upper part, increase the thousand seed weight of sesame seeds and increase the yield. The sesame defoliating and ripening agent not only can accelerate the development progress, but also enables the ripening period tobe compact and consistent, thus increasing the yield, and solving the problem that a sesame stalk puts forth blossoms notch by notch, higher and higher, namely, fruit pods at the middle upper part aredark green while fruit pods at the bottom are ripe and cracked, so that the harvest is difficult to unify; the sesame defoliating and ripening agent also can promote the shedding of leaves when the leaves are yellow-green, and reduce the problems of low seed cleanliness and commodity reduction which are caused by the incomplete shedding of dried-up leaves; therefore, the sesame defoliating and ripening agent is an ideal combined application agent suitable for mechanical harvesting and artificial harvesting.

Description

technical field [0001] The invention relates to a sesame defoliation and ripening treatment technology, in particular to a sesame defoliation and ripening agent for mechanical or manual harvesting. Background technique [0002] Sesamum (Sesamum indicum L.) is a high-quality traditional characteristic oil crop with high economic and nutritional health value, known as the "queen of oil". The unsaturated fatty acid in the seed is as high as 85%, rich in protein, calcium, phosphorus, iron, and vitamin E. Its unique natural antioxidant substances sesamin and sesamol have high medical and health care values. In recent years, the domestic demand for sesame has been increasing year by year, reaching 1.3 million tons per year, while the total supply of domestic production is less than 50%, and more than 600,000 tons are required to be imported every year, ranking first in the world. R&D and promotion of cost-saving, high-efficiency and light-simplified cultivation techniques to prom...

AI Technical Summary

Problems solved by technology

[0003] As the saying goes, "sesame blossoms steadily higher", the biological characteristics of sesame are that the maturity of the capsules of the whole plant is inconsistent, the maturity sequence is from bottom to top, and the bottom capsules are ripe and cracked, and the upper part is still hanging with flower buds, which brings great benefits to the unified harvest of sesame. Difficulty

In addition, the stalks and leaves are retained during harvesting, and the dry branches and leaves are mixed with the seeds during threshing, which greatly affects the cleanliness and commerciality of the seeds.

At present, there is no special defoliation and ripening agent for sesame in production, and the application effect of the common defoliation and ripening agent for cotton and other plants on sesame is not good, and it does not conform to the growth and development law of sesame. It is a compound defoliating ripening agent that accelerates the maturity of the middle and upper grains, promotes the same ripening period of the capsule, and can effectively remove the residual leaves of the stalks and reduce the difficulty of cleaning impurities in the later stage. Provide technical support

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