Rice ineffective tillering inhibitor

A technology of invalid tillering and inhibitors, applied in the field of rice invalid tillering inhibitors, can solve the problems of multiple control of invalid tillers, low ear formation rate, etc.

Inactive Publication Date: 2009-06-17
RICE RES INST GUANGDONG ACADEMY OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to provide an ineffective tiller inhibitor capable of inhibiting the occurrence of ineffective tillers in rice, to solv

Method used

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  • Rice ineffective tillering inhibitor
  • Rice ineffective tillering inhibitor
  • Rice ineffective tillering inhibitor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Dissolve 5g of 4-chlorophenoxyacetic acid in 50ml of ethanol to prepare an ethanol solution; dissolve 0.25mg of brassinolide in 5ml of ethanol to prepare an ethanol solution; take 20g of catechol and dissolve it in 40-60 Prepare an aqueous solution in one kilogram of water, then add the above two ethanol solutions into the aqueous solution, and stir evenly, which is the dosage for spraying 1 mu.

Embodiment 2

[0026] Dissolve 10g of 2,4-dichlorophenoxyacetic acid in 100ml of ethanol to prepare an ethanol solution; dissolve 0.35mg of brassinolide in 7ml of ethanol to prepare an ethanol solution; take 30g of catechol and dissolve in Prepare an aqueous solution in 40-60 kg of water, then add the above two ethanol solutions to the aqueous solution, and then add 45 g of fatty alcohol polyoxyethylene ether, and stir evenly, which is the dosage for spraying 1 mu.

Embodiment 3

[0028] Dissolve 15g of 2-methyl-4-chlorophenoxyacetic acid in 150ml of ethanol to prepare an ethanol solution; dissolve 0.5mg of brassinolide in 10ml of ethanol to prepare an ethanol solution; take 40g of catechol, Dissolve in 40-60 kg of water to prepare an aqueous solution, then add the above two ethanol solutions into the aqueous solution, then add 50g of fatty alcohol polyoxyethylene ether, stir evenly, that is, the dosage for spraying 1 mu.

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Abstract

The invention discloses a rice ineffective tiller inhibitor comprising components of phenoxyacetic acids with a percentage by weight of 11.1%-42.9%, brassinolide with a percentage by weight of 0.0005%-0.002%, and the rest is catechol.Effects of employing the rice ineffective tiller inhibitor of the invention to spray paddy rice comprises: (1) remarkable tiller control effect; (2) appreciable yield increasing effect; (3) improved rice corn quality; (4) remarkable economic effectiveness.

Description

technical field [0001] The invention relates to a rice tiller inhibitor, in particular to a rice invalid tiller inhibitor. Background technique [0002] Among the tillers of rice, some of them cannot form ears, and these tillers are called "ineffective tillers". Ineffective tillers are almost detrimental to yield. This is because: (1) under group conditions, ineffective tillers output very little nutrients to effective stems, resulting in a waste of nutrients; (2) before ineffective tillers die, they compete with effective stems for nutrients, deteriorating colony ventilation. (3) The existence of ineffective tillers also leads to irregular rice ears, poor maturation of small ears, and more chalky rice, thereby reducing rice quality grades. Therefore, controlling ineffective tillers is of great significance for increasing rice yield and improving rice quality. At present, the tillering spike rate [referring to the percentage of the final number of spikes accounting for th...

Claims

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Application Information

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IPC IPC(8): A01N39/04A01N43/16A01P21/00
Inventor 钟旭华黄农荣
Owner RICE RES INST GUANGDONG ACADEMY OF AGRI SCI
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