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A herbicidal composition and corn field technology are applied in the field of pesticides to achieve the effects of reducing drug costs, huge economic and social benefits, and improving control effects
Inactive Publication Date: 2014-05-07
GUANGDONG ZHONGXUN AGRI TECH
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[0010] The purpose of the present invention is to solve the shortcomings of single or dual use of
Method used
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Embodiment 1
[0023] Example 1: Indoor toxicity determination of chlorpyrazosulfuron-methyl, nicosulfuron-methyl, isooctyl fluroxypyr and their compound on foxtail, goosegrass, Cyperus cyperi, and field bindweed
[0024] Table 1. Indoor toxicity test results of clopyrazosulfuron-methyl, nicosulfuron-methyl, fluroxypyr-ethyl isooctyl and their compound on Foxtail.
[0025]
[0026] Table 2. Indoor toxicity test results of chlorpyrazosulfuron, nicosulfuron, isooctyl fluroxypyr and their compound pair goosegrass.
[0027]
[0028] Table 3. Indoor toxicity test results of clopyrazosulfuron, nicosulfuron, isooctyl fluroxypyr and their compound Cyperus cyperi.
[0029]
[0030] Table 4. Indoor toxicity test results of clopyrazosulfuron, nicosulfuron, isooctyl fluroxypyr and their compound on field bindweed
[0031]
[0032] According to the Colby method to evaluate the combination of herbicides (NY / T 1155.7-2006), the formula is as follows:
[0033] E ...
Embodiment 2
[0042] Embodiment 2: field efficacy test.
[0043] Table five, field efficacy test result of composition of the present invention.
[0044]
[0045] According to the results of drug efficacy tests, the ternary compound excipients of chlorpyrazosulfuron-methyl, nicosulfuron-methyl, and isooctyl fluroxypyr are formulated as water-dispersible granules, oil suspension concentrates, and suspension concentrates. In 15 days, the control effects on foxtail, goosegrass, Cyperus rotundum, thistle, field bindweed and iron amaranth were all above 90%.
[0046] In summary, the composition of the invention is reasonable, has significant synergistic effect, expands the herbicidal spectrum, and has a good prospect of being developed for weeding in corn fields.
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Abstract
The invention relates to a corn field weeding composition which is composed of effective components A, B and C and proper amounts of pesticide adjuvants, wherein the effective component A is halosulfuron-methyl, B is nicosulfuron or rimsulfuron, and C is fluroxypyr or an ester compound thereof. The weeding composition is reasonable in components, has synergistic effect, overcomes the defects of incomplete weeding spectrum or lower activity for some weed and slow effect taking due to use of single weedicide, and lowers the risk in resistance due to use of single or two-element compounds. The weeding composition has obviously better preventing and treating effects than a single agent, lowers the consumption of the pesticide, and reduces the adverse effect of the pesticide on the ecological environment; and the weeding composition has important meanings for comprehensive treatment of weed resistance, and has huge economic benefit and social benefit.
Description
technical field [0001] The invention belongs to the technical field of pesticides, and in particular relates to a ternary compound cornfield herbicide composition. Background technique [0002] Clopyrazosulfuron-methyl is a sulfonylurea systemic agricultural compound, which can be absorbed by the stems, leaves and roots of plants. Weeds stop growing first and then die. It is mainly used to control annual broad-leaved weeds and Cyperaceae weeds. Rhizoma Cyperus has special effects. [0003] Fluroxypyr or its esters are organic heterocyclic selective systemic herbicides for post-emergence, which are quickly absorbed by plants after treatment, causing sensitive plants to respond to typical hormone herbicides, resulting in deformed and twisted plants , and eventually die, it can control various broad-leaved weeds such as commelina, purslane, and chickweed. [0004] Nicosulfuron is a sulfonylurea systemic agricultural compound, which can be absorbed by the stems, leaves and roo...
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