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Pesticide composition for lodging resistance of rice

A lodging resistance and composition technology, applied in the direction of chemicals, fertilizer mixtures, applications, etc. for biological control, can solve the problems of lodging loss and harvest loss increase, difficulty in resisting wind and rain, long breeding time of improved seeds, etc., to achieve The effect of reducing the length of near-ground internodes, enhancing lodging resistance, and increasing thousand-grain weight

Active Publication Date: 2021-06-29
HEILONGJIANG ACAD OF LAND RECLAMATION SCI +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, some rice varieties with better eating taste have poor lodging resistance. For similar varieties, rice breeders have not bred alternative varieties that can taste comparable to the original varieties and have good lodging resistance.
At present, the commonly used methods of rice lodging resistance include selection of improved varieties, rational fertilization, and use of lodging-resistant chemicals, etc., but the breeding of improved varieties requires a long breeding time. Even if a rice variety with strong lodging resistance is cultivated, farmers will face the process of pursuing high yield. lodging problem in
In terms of fertilization, if nitrogen fertilizer is too little, although the lodging resistance of rice will increase, the yield will decrease greatly, and the production efficiency will decrease; if nitrogen fertilizer increases, the lodging resistance of rice will increase while the yield will decrease, and it will be difficult to resist wind and rain, resulting in lodging loss and harvest loss. Increase

Method used

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  • Pesticide composition for lodging resistance of rice
  • Pesticide composition for lodging resistance of rice
  • Pesticide composition for lodging resistance of rice

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] The pharmaceutical composition used for rice lodging resistance of the present embodiment is made of the following raw materials in mass percentage: 40% of ethephon, 5% of uniconazole, 20% of potassium dihydrogen phosphate, 0.4% of dispersant lauryl phosphate, Wetting agent cocoyl glucoside 0.16%, thickener xanthan gum 0.5%, and the balance is water.

[0015] This embodiment also provides a preparation method for a medicinal composition for rice lodging resistance. The method is as follows: first, add an appropriate amount of water to dissolve the dispersant and wetting agent, add uniconazole and ethephon, and turn the mixture at 1000 rpm After dispersing for 10 minutes under the condition of 1 / min, add potassium dihydrogen phosphate and thickener, after adding water, disperse for 30min under the condition of 3000 rev / min at the rotating speed, then transfer the mixture to the sand mill for sand milling, Sand milling with a rotating speed of 1500rpm for 10 minutes, and ...

Embodiment 2

[0017] The pharmaceutical composition used for rice lodging resistance in this embodiment is made of the following raw materials in mass percentage: 20% of ethephon, 8% of uniconazole, 15% of potassium dihydrogen phosphate, 0.3% of dispersant lauryl phosphate, Wetting agent cocoyl glucoside 0.18%, thickening agent xanthan gum 0.3%, balance is water.

[0018] The preparation method of the medicinal composition for rice lodging resistance in this embodiment is the same as that in Embodiment 1.

Embodiment 3

[0020] The pharmaceutical composition used for rice lodging resistance of the present embodiment is made of the following raw materials in mass percentage: 45% of ethephon, 3% of uniconazole, 25% of potassium dihydrogen phosphate, 0.45% of dispersant lauryl phosphate, Wetting agent 0.15%, thickening agent xanthan gum 0.8%, balance is water.

[0021] The preparation method of the medicinal composition for rice lodging resistance in this embodiment is the same as that in Embodiment 1.

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Abstract

The invention provides a pesticide composition for lodging resistance of rice. The pesticide composition is prepared from ethephon, uniconazole, monopotassium phosphate, a dispersing agent, a wetting agent, a thickening agent and water. According to the invention, the plant height of rice is properly reduced, so the bending moment of the rice is reduced; and the strength of rice stalks is improved, the breaking resistance of the stalks at near-ground node positions and the supporting force of the stalks to ears are emphatically enhanced, so the occurrence of rice lodging can be effectively relieved.

Description

technical field [0001] The invention belongs to the technical field of rice lodging resistance, and in particular relates to a medicinal composition for rice lodging resistance. Background technique [0002] The lodging resistance of rice is determined by the genetic characteristics of the variety. Selecting rice varieties with strong lodging resistance is the fundamental way to solve the problem of crop lodging. The lodging resistance of rice is also relative, and the lodging resistance of different rice varieties is quite different. In the process of pursuing high yield, increasing nitrogen fertilizer, all rice varieties will inevitably face the problem of lodging. In addition, some rice varieties with better eating taste have poor lodging resistance. For similar varieties, rice breeders have not yet bred alternative varieties that can taste comparable to the original varieties and have good lodging resistance. At present, the commonly used methods of rice lodging resista...

Claims

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Application Information

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IPC IPC(8): A01N27/00A01N57/20A01N43/653A01P21/00C05B7/00C05G3/00C05G3/60C05G3/70C05G5/27
CPCA01N27/00A01N43/653A01N57/20C05B7/00C05G3/00C05G3/60C05G3/70C05G5/27
Inventor 萧长亮赵姝李鹏王忠森康明王立楠解保胜那永光王安东李静宋微李春光刘文志杜明韩炳华张晓斌
Owner HEILONGJIANG ACAD OF LAND RECLAMATION SCI