A kind of anti-lodging agent for rice and its application method

Abstract

The invention discloses a rice anti-aging lodging-resistant agent and an application method thereof. The rice anti-aging lodging-resistant agent is prepared from 5.0 to 20.0 percent of soluble organicchelated potassium silicate, 1.0 to 5.0 percent of prohexadione calcium, 3.0 to 6.0 percent of glycol, 1.0 to 3.0 percent of anionic surfactants, 1.0 to 2.0 percent of stabilizing agents, 0.1 percentof antifoaming agents and the balance of water. The rice anti-aging lodging-resistant agent is diluted by water for 300 to 400 times by water; organic silicon surfactants diluted for 3000 to 6000 times are added; after the sufficient and uniform stirring, the fertilizer is sprayed onto leaf sheaths; during the spray application, the speed is properly accelerated; the leaves are wetted without drip injectionping; during the application after rice full heading, the application time interval every time is more than 7 days or above. The lodging-resistant capability is enhanced through prolongingthe leaf sheath vaginant lamina effects; the defects of plant dwarf and high biomass realization difficulty due to dwarfing agents can be avoided.

Description

technical field [0001] The invention belongs to the technical field of fertilizers, and relates to a rice anti-lodging agent and an application method thereof. Background technique [0002] If problems such as premature senescence and lodging occur in the late growth period of rice, it will significantly affect the yield. The lodging resistance of rice has been studied in many aspects such as morphology, physiology, cultivation and agronomic measures, and the mechanism of lodging resistance of rice has been explained. However, lodging resistance research generally takes rice stalks as the research object, and plant dwarfing agents are often used in regulation to prevent lodging at the cost of reducing plant height and biomass. It is the future development trend to increase the biomass by continuously increasing the plant height to obtain sustained super-high yield of rice. Therefore, the growth of each node is inevitable. If the plant dwarfing agent is continued to be used ...

AI Technical Summary

Problems solved by technology

But the above plant growth regulators have at least 2 defects. On the one hand, in the later stage of growth, although they can significantly enhance the photosynthesis of plants and delay senescence, they cannot control the growth of crop nodes, which will cause the roots of the aboveground nodes to grow. Lateral buds grow, causing tissue infection and leaf sheath stripping. On the other hand, most of the above plant growth regulators are toxic to rotation plants and pollute the environment.

[0006] The above studies have shown that a lot of research has been carried out on rice delaying senescence and lodging resistance, but the current prevention and control of rice lodging has not been regulated by prolonging the phimosis of leaf sheaths. , used to delay the aging of the leaf sheath, increase the strength of the leaf sheath, inhibit the rooting of the aboveground nodes or grow lateral buds, thereby enhancing the lodging resistance and reducing environmental pollution

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