Pyribenzoxim-containing paddy field herbicide composition
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A technology of pyrimidifen and a composition, applied in the field of pesticide formulations, can solve problems such as poor safety and poor control effect, and achieve the effects of prolonging service life, reducing dosage and crop safety
Active Publication Date: 2014-12-10
甘肃滨农科技有限公司
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[0005] Through relevant literature search, it is found that there are domestic patent documents related to promasulfuron-methyl and saflufenacil, for example, Chinese patent CN103271064A discloses a herbicide composition containing promasulfuron-methyl and cyhalofop-ethyl, The composition has good control effect on broad-leaved and gramineous wee...
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Embodiment 1
[0022] Formulation Example 1: 65% Promasulfuron-Saflufenacil Water-Dispersible Granules
[0023] Weigh 40% promethazone, 25% saflufenacil, 5% polycarboxylate, 2% alkylsulfonate, 2% polyvinylpyrrolidone, 1% polyethylene glycol, and attapulgite to make up to 100%, through conventional methods for preparing water-dispersible granules, namely pre-mixing, jet milling, post-mixing, kneading with water, granulation, and sieving, 65% promasulfuron-saflufenacil water-dispersible granules were obtained.
Embodiment 2
[0024] Formulation Example 2: 28% Promasulfuron-Saflufenacil Water-Dispersible Granules
[0025] Weigh 8% promethazone-methyl, 20% saflufenacil, 4% alkylphenol polyoxyethylene ether, 2% naphthalene sulfonate, 1% sodium alginate, 0.5% hydroxyethyl cellulose, and make up with bentonite To 100%, through the conventional method for preparing water-dispersible granules, that is, pre-mixing, jet milling, post-mixing, kneading with water, granulation, and sieving, 28% promasulfuron-pyrimidin water-dispersible granules were obtained .
Embodiment 3
[0026] Formulation example 3: 37% promasulfuron-saflufenacil wettable powder
[0027] Weigh 32% promethazone-methyl, 5% saflufenacil, 2% sodium lauryl sulfate, 3% sodium lignosulfonate, 5% white carbon black, and kaolin to make up to 100%. The method of wet powder, that is, pre-mixing, jet milling, and post-mixing, to obtain 37% promasulfuron-saflufenacil wettable powder.
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Abstract
The invention discloses a herbicide for preventing and controlling paddy field weeds. The herbicide is a binary herbicide composition which comprises promazine sulfometuron methyl and pyribenzoxim, wherein the promazine sulfometuron methyl and the pyribenzoxim are taken as active components; the weight ratio of the promazine sulfometuron methyl and the pyribenzoxim in the binary herbicide composition is 1:10-128:5, the mass percentage of the promazine sulfometuron methyl and the pyribenzoxim accounts for 5%-80% of the compound herbicide. Compared with the independent use of a single agent, the herbicide composition disclosed by the invention can not only obviously enhance the weeding effect and enlarge the weed control spectrum, but also reduce the generation of weed drug resistance, decreases the herbicide application times, reduces the prevention and control cost, has good environmental compatibility and thus is a more ideal novel composition medicament for preventing and controlling the paddy field weeds.
Description
【Technical field】 [0001] The invention belongs to the field of pesticide preparations, and in particular relates to a herbicide composition with promethazone-methyl and saflufenacil as active ingredients, which is applied to control weeds in paddy fields. 【Background technique】 [0002] Rice is one of the main food crops in the world. Nearly half of the world's population feeds on rice, and its production covers all continents except Antarctica. However, weeds in rice fields have always been an important factor affecting rice production. Weeding in rice fields is a major problem in rice production, and chemical weeding is the main means of controlling weeds. The use of herbicides can not only save a lot of labor and improve labor productivity, but also can make a large number of weeds in the seedlings that are difficult to remove by machinery Therefore, the research and application of chemical herbicides has attracted more and more attention. The proportion of sales of chemi...
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