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A herbicide and paddy field technology, applied to herbicides, algicides, biocides, biocides, etc., can solve undiscovered problems, reduce use costs, expand herbicide spectrum, and delay weed resistance Effect
Active Publication Date: 2015-05-06
GUANGDONG ZHONGXUN AGRI TECH
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[0008] So far, no report has been found on the combination of (A) pyrazosulfuron-methyl, (B) oxyfluorfen and (C) mesotrione or propargyl oxadiazone
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Embodiment 3
[0024] Formulation example 3: 2% pyrazosulfuron-ethyl-oxyfluorfen-mesotrione granules.
[0025] Pyrazosulfuron-methyl 0.8%, oxyfluorfen 0.8%, mesotrione 0.4%, sodium alkyl sulfonate 6.2%, polycarboxylate 7%, starch dextrin 13%, clay supplemented to 100%. The above active ingredients and additives are mixed and kneaded with water, extruded and shaped by an extrusion granulator, and then the granules are dried and sieved in a fluidized bed to obtain 2% pyrazosulfuron-ethoxyfluoride Mesotrione Mesotrione Granules.
Embodiment 1
[0026] Biological Assay Example 1: Field Drug Efficacy Test.
[0027] Test time: application time April 2, 2014, investigation time April 22, 2013
[0028] Test location: Wupei Village, Renshan Town, Huidong County, Huizhou City, Guangdong Province.
[0029] Application method: 7 days after transplanting the rice, sprinkle the pesticide with mixed fertilizer.
[0030] Test agent and dosage:
[0031] Treatment 1: 35% pyrazosulfuron-methyl-oxyfluorfen-propargyl clomazone wettable powder (formulation example 1), 667m 2 The active ingredient dosage is 4 grams.
[0032] Treatment 2: 25% pyrazosulfuron-methyl-oxyfluorfen-propargyl clomazone suspension concentrate (formulation example 2), 667m 2 The active ingredient dosage is 4 grams.
[0033] Treatment 3: 2% pyrazosulfuron-ethyl-oxyfluorfen-mesotrione granules (formulation example 3), 667m 2 The active ingredient dosage is 4 grams.
[0034] Treatment 4: 10% pyrazosulfuron-methyl WP, 667m 2 The active ingredient dosage is 2 ...
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Abstract
The invention discloses an herbicide for paddy fields. The herbicide consists of active ingredients A, B and C as well as appropriate pesticide adjuvants, wherein the active ingredient A is pyrazosulfuron-ethyl, the ingredient B is oxyfluorfen, and the ingredient C is one of mesotrione and oxadiargyl; and the ratio of the active ingredients A to B to C in the herbicide is (1-20) to (1-20) to (1-20) in parts by weight. The herbicide disclosed by the invention can be prepared as one of a suspending agent, wettable powder or granules, and the herbicide can be used for preventing and controlling annual weeds in the paddy transplanting fields.
Description
technical field [0001] The invention relates to a rice transplanting field herbicide. Background technique [0002] Chemical weed control is one of the main means of weed control in paddy fields, and the use of a single compound herbicide can easily lead to weed resistance. At the same time, when weeds occur in paddy fields, the grass phase is complex, grass weeds, broad-leaved weeds and other types of weeds are mixed, and the use of a single type of compound herbicide will show some defects and limitations, and cannot be completely eliminated. Eliminate weeds in farmland. The combination of different types of compound herbicides can expand the herbicidal spectrum, improve the actual effect, delay weed resistance, and save time and labor. [0003] Pyrazosulfuron-ethyl, a sulfonylurea selective paddy field herbicide, can quickly diffuse in water, be absorbed by the roots of weeds and then be transmitted to the plants, hindering the synthesis of amino acids, and rapidly inhi...
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