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Herbicide composition containing sulfentrazone and florasulam
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A technology of dioxsulam and sulfentrazone, applied in the directions of herbicides, algicides, biocides, biocides, etc., can solve problems such as complex action mechanisms, achieve good effects, reduce environmental pollution, prevent Enhanced effect
Inactive Publication Date: 2018-12-14
INST OF PLANT PROTECTION SHANDONG ACAD OF AGRI SCI
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Problems solved by technology
Reasonable compounding or compounding of chemical herbicides can expand the herbicidal spectrum, improve the control effect, extend the application period, reduce the dosage, reduce the risk of phytotoxicity, reduce the residue, and delay the occurrence and development of weed resistance and drug resistance Therefore, choosing the appropriate compound or mixture of herbicides is one of the most effective and economical methods to solve the above problems; however, due to the complex mechanism of action between the mixture of pesticides, whether the synergy after combination is affected by many factors , can only be verified by relying on experimental results, and cannot be expected
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Embodiment 1
[0024] Example 1 Sulfentrazone, Flumesulam configuration water suspension
[0025] The test agents were 91% of the original drug of sulfentrazone and 92% of the original drug of florasulam. Use an electronic balance to weigh the quantitative amount of sulfentrazone and florasulam respectively, first add a special emulsifier to dissolve, then add 2 times of N,N-dimethylformamide until completely dissolved, and use 0.1% The Tween-80 aqueous solution was diluted into 1% mother liquor for later use. See Table 1 for the ratio of sulfentrazone and florasulam.
[0026] Table 1 Compound ratio of sulfentrazone and florasulam
[0028] Example 2 Sulfentrazone, diflusulam preparation suspending agent
[0029] Measure 40% sulfentrazone SC, 50g / L florasulam suspending agent, and mix them into 10% tolusulfuron-methyl diflusulam suspending concentrate, sulfentrazone: florasulam The ratios are 20:1, 30:1, 40:1, 50:1.
Embodiment 3
[0030] Example 3 Indoor Experimental Screening
[0031] No.1 test condition
[0032] The tested weeds were Artemisia solani, Shepherd's Purse, Popona and Maijiagong. The test specimens were cultivated in a glass greenhouse with heating at a temperature of 15-25 °C under natural light. Sow a certain amount of Artemisia persicae, shepherd's purse, popona and Maijiagong seeds in plastic pots with a diameter of 9 cm, cover the weeds with 1-2 mm of soil, put them in an enamel dish filled with water, let the water gradually penetrate, After the water seeped to the soil surface, it was transferred to the artificial climate chamber for use.
[0033] In addition to not watering for 1-2 days after spraying, regularly replenish water with bottom seepage irrigation to maintain soil moisture.
[0034] No.2 Experimental Design
[0035] According to the method in Example 1, compound herbicides were formulated, and sulfentrazone was set at 45, 90, 180, and 360 ga.i. / ha, and florasulam was...
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Abstract
The invention belongs to the technical field of pesticide herbicides and provides an herbicide composition containing sulfentrazone and florasulam according to a weight ratio of 240:1 to 3.75:1. The herbicide composition has a good synergistic effect or additive effect of preventing and removing weeds such as Descurainia Sophia, shepherd's purse, procumbent speedwell and Buglossoides arvense in the wheat field. The herbicide composition has a wide herbicidal spectrum, improves prevention effects, realizes complementation of the quick-acting effect and the persistence effect, prevents rapid occurrence of weed resistance caused by use of a single herbicide, delays the weed resistance, reduces a dosage, reduces a use cost and reduces the environmental pollution.
Description
technical field [0001] The invention belongs to the technical field of pesticide herbicides, in particular to a herbicide composition containing sulfentrazone and florasulam. Background technique [0002] Wheat is one of the three major food crops in my country. Its planting area and total output are second only to rice. The national planting area is more than 30 million hectares, about 450 million mu, accounting for 22%-30% of the country's cultivated land area, about 20%-27% of the sown area, the total wheat output is about 100 million tons, reaching 22% of the total grain output (Wu Mingrong et al., 2013, Pesticides). Wheat is the main commodity grain and strategic reserve grain variety in my country, and plays an important role in grain production, circulation and consumption. The development of wheat production is of great significance to the development of my country's national economy and people's lives. [0003] However, weeds in wheat fields pose a major threat to w...
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IPC IPC(8): A01N43/653A01N43/90A01P13/00
CPCA01N43/653A01N43/90
Inventor 高兴祥李美李健孙作文
Owner INST OF PLANT PROTECTION SHANDONG ACAD OF AGRI SCI
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