A composition for reducing the chalkiness rate of paddy rice, its preparation method and application

A composition and chalky rate technology, applied in the agricultural field, can solve the problems of low degree and reduce the chalkiness of rice, and achieve the effects of reducing energy consumption, improving fruit setting rate and reducing the chalkiness rate of rice

Active Publication Date: 2021-11-16
HUNAN AGRICULTURAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Phytonutrient chemical modifiers have different effects on reducing rice chalkiness in different varieties, but to a lesser extent

Method used

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  • A composition for reducing the chalkiness rate of paddy rice, its preparation method and application

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Prepare the composition of the present invention for reducing the chalkiness rate of rice into a compound reagent: accurately weigh 0.0187g of 3-chloro-4-hydroxyphenylacetic acid and 0.016g of chlormequat, dissolve them in DMSO and prepare a 1L aqueous solution, add 0.05% Tween 20 (v / v) is mixed and dissolved, the method of use of the present invention: the compound reagent prepared by the present invention is placed in an agricultural sprayer, starting from the 7th day to the 14th day after ear emergence, at 18:30 every afternoon Spray once as a mist.

Embodiment 2

[0038] An embodiment of the composition for reducing the chalkiness rate of paddy rice of the present invention: Accurately weigh 0.05g of 3-chloro-4-hydroxyphenylacetic acid and 0.046g of chlormequat, dissolve them in DMSO and prepare a 1L aqueous solution, add 0.12% Temperature 20 (v / v) mixes and dissolves, and its component source and using method are identical with embodiment 1.

Embodiment 3

[0040] An embodiment of the composition for reducing the chalkiness rate of rice of the present invention: Accurately weigh 0.023g of 3-chloro-4-hydroxyphenylacetic acid and 0.028g of chlormequat, dissolve them in DMSO and prepare a 1L aqueous solution, add 0.08% Tween 20 (v / v) was mixed and dissolved, and its component source and usage method were the same as in Example 1.

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Abstract

The invention discloses a composition for reducing the chalkiness rate of rice and its preparation method and application. The composition comprises 3-chloro-4-hydroxyphenylacetic acid, chlormequat and Tween 20. The composition prepared by the scheme of the present invention can effectively reduce the chalky grain rate and chalkiness of rice, which is beneficial to increase the yield and improve the quality of rice. At the same time, the composition prepared by the present invention has no pollution to the environment and can be widely used in rice chalkiness. different rice varieties with higher degrees of

Description

technical field [0001] The invention belongs to the technical field of agricultural technology, and specifically relates to a composition for reducing the chalkiness rate of paddy rice, a preparation method and application thereof. Background technique [0002] With the improvement of living standards, people have higher and higher requirements for rice quality. Southern early indica rice has excellent traits such as high yield and strong resistance, but the rice quality of early indica rice is relatively poor, resulting in low planting economic benefits. [0003] Rice quality is affected by many comprehensive factors such as variety genetic characteristics, environmental conditions, cultivation techniques and processing conditions. Among the environmental factors, the temperature at the grain-filling stage has the greatest impact on rice quality traits. High temperature during the grain-filling stage can lead to shortening of the grain-filling stage, poor grain filling, in...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N37/38A01N33/12A01N25/30A01P21/00A01G7/06A01G7/00
CPCA01G7/00A01G7/06A01N25/30A01N33/12A01N37/38
Inventor 肖浪涛刘清许金科
Owner HUNAN AGRICULTURAL UNIV
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