Herbicide resistant regulator for safe growth of rice

A growth regulator and anti-herbicide technology, applied in plant growth regulators, plant growth regulators, biocides, etc., can solve the problems of unsafe cultivation of rice and high labor costs

Inactive Publication Date: 2012-08-08
CHINA NAT RICE RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Because the morphology and biological characteristics of weedy rice are very similar to those of cultivated rice, there are few chemical herbicides that can effectively control weedy rice. unsafe
At present, the control of weedy rice mainly relies on manual pulling or ear cutting, and the labor cost is very high. Farmers urgently need new technologies that can effectively control weedy rice

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] 10% herbicide resistant rice safe growth regulator powder.

[0029] Its components (weight%) are 4,6-dichloro-2-phenylpyrimidine 9.995 (active ingredient), abscisic acid 0.005 (active ingredient), wetting agent sodium dodecylbenzenesulfonate 1, dispersant carboxymethyl Base cellulose sodium 0.2, carrier white carbon black 50, diatomaceous earth balance.

[0030] According to the seeding rate of japonica rice 105kg / hm 2 , the amount of water for soaking seeds is calculated at 1:5, and 525kg is required, and the amount of 10% herbicide-resistant rice safety growth regulator powder is 0.4g (active ingredient), that is, 10 % Herbicide-resistant rice safety growth regulator powder commercial volume 40g.

[0031] Rice seeds 105kg / hm 2 , Disinfect with conventional disinfectant imidamide aqueous solution for 24-48h, then fish out the rice seeds to accelerate germination, and when the rice seeds have roots and sprouts, soak the seeds with 10% herbicide-resistant rice safety ...

Embodiment 2

[0036] 20% herbicide resistant rice safe growth regulator powder. Its components (weight %) are 4,6-dichloro-2-phenylpyrimidine 19.99 (active ingredient), abscisic acid 0.01 (active ingredient), wetting agent sodium dodecylbenzenesulfonate 2, dispersing agent carboxymethyl Base cellulose sodium 0.4, carrier white carbon black 10, diatomaceous earth balance.

[0037] According to the seeding rate of japonica rice 105kg / hm 2 , the amount of water for soaking seeds is calculated at 1:5, and 525kg is required, and the amount of 10% herbicide-resistant rice safety growth regulator powder is 0.35g (active ingredient), which is 10 % Herbicide-resistant rice safety growth regulator powder commercial volume 35g.

[0038] Rice seeds 105kg / hm 2 , Disinfect with conventional disinfectant imidamide aqueous solution for 24-48h, then fish out the rice seeds to accelerate germination, and when the rice seeds have roots and sprouts, soak the seeds with 10% herbicide-resistant rice safety gr...

Embodiment 3

[0042] 10% herbicide-resistant rice safe growth regulator solution. Its components (weight %) are 4,6-dichloro-2-phenylpyrimidine 9.995 (active ingredient), abscisic acid 0.005 (active ingredient), emulsifier alkyl aryl epoxide block polyether 4, carrier Ethylene glycol balance.

[0043] According to the seeding rate of japonica rice 105kg / hm 2 , the amount of water for soaking seeds is calculated at 1:5, and 525kg is required, and the amount of 10% herbicide-resistant rice safety growth regulator liquid is 0.4g (active ingredient), calculated on the basis of 1300 times of dilution (1300:1 =525:X). 10% herbicide-resistant rice safety growth regulator liquid commercial volume 40g.

[0044] Rice seeds 105kg / hm 2 , Disinfect with conventional disinfectant imidamide aqueous solution for 24-48h, then fish out the rice seeds to accelerate germination, and when the rice seeds have roots and sprouts, soak the seeds with 10% herbicide-resistant rice safety growth regulator powder fo...

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PUM

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Abstract

The invention which relates to a herbicide resistant regulator for the safety growth of rice belongs to the technical field of regulators for the safety growth of rice. The regulator is characterized in that the regulator contains 5-50% of 4,6-dichloro-2-phenylpyrimidine and 0.0025-0.03% of abscisic acid. After using the regulator to soak seeds and using a butachlor missible oil or pretilachlor missible oil herbicide to weeding, the rice root length and the biomass are substantially improved, the leaf color, the growth potential, the growth period and the like of rice are normal, the yield increase is substantial, the control effect on weedy rice reaches above 90%, and control effects on weeds of barnyard grass and Semen Euphorbiae reach 90% and above 85% respectively.

Description

technical field [0001] The invention belongs to the technical field of rice safety growth regulators, in particular to a regulator capable of improving the resistance of rice seeds to chemical herbicides butachlor and pretilachlor, and simultaneously promoting rice growth. Background technique [0002] Weedy rice is a member of the Poaceae Oryza genus ( Oryza Linnaeus) plant, which not only has some characteristics of cultivated rice, but also has wild characteristics, can reproduce naturally and continue offspring in the rice production system, competes with cultivated rice for light, water and nutrition, and is as harmful as weeds, so it is called Known as weedy rice. [0003] Since the beginning of the new century, a large number of rural labor force has been transferred to cities in my country, and light cultivation methods such as throwing rice seedlings, direct seeding, and no-tillage have developed rapidly. The introduction of improved rice varieties between countri...

Claims

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Application Information

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IPC IPC(8): A01N43/54A01N37/42A01N25/12A01N25/04A01P21/00A01C1/00
Inventor 余柳青张建萍陆永良
Owner CHINA NAT RICE RES INST
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