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Oat field weeding composition containing thifensulfuron-methyl and preparation and application methods thereof

A herbicidal composition, thifensulfuron-methyl technology, applied in botany equipment and methods, herbicides and algicides, applications, etc., can solve the problems of reducing the quality and yield of oats, deforming the roots of growing plants, increasing the rate of shelling, etc. , to achieve the effect of moderate residual effect period, reduced residue and reduced dose

Active Publication Date: 2019-03-26
INNER MONGOLIA AGRICULTURAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] So far, there is no special herbicide registered for oat fields in my country. In some areas, the herbicide 2,4-D butyl ester is used. Although the control effect is good, but the field observation shows that the herbicide will cause deformed roots of growing plants and slow root growth. , the root system is reduced, the tillers are reduced, the grains are thinner, the rate of shelling is increased, and the quality and yield of oats are reduced

Method used

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  • Oat field weeding composition containing thifensulfuron-methyl and preparation and application methods thereof
  • Oat field weeding composition containing thifensulfuron-methyl and preparation and application methods thereof
  • Oat field weeding composition containing thifensulfuron-methyl and preparation and application methods thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Example 1 Concentration Screening Test of Herbicide Liqing to Control Weeds in Oat Field

[0021] In 2012, the concentration screening test of the herbicide Liqing to control weeds in the oat field was carried out in Maoheigou, Wuchuan County, with 4 concentrations of 60mL / 667m 2 , 80mL / 667m 2 , 100mL / 667m 2 , 160mL / 667m 2 , no weeding and artificial weeding control, a total of 6 treatments, water consumption 30kg / 667m 2 , 4 repetitions. Residential Area 30m 2 , a completely randomized block arrangement. After the emergence of weeds, the oat seedlings are at the 3-4 leaf stage, and the stems and leaves are evenly sprayed. After oat emergence, the safety of each treatment on oats was observed, the number of weed plants was investigated after 15 days of application, and the number and fresh weight of weed plants were investigated after 30 days of application, and the control effect of plant number and fresh weight was calculated. The survey method adopts the quadra...

Embodiment 2

[0027] Example 2 Demonstration test of herbicide Liqing

[0028] In 2014, a small-area demonstration of Liqing was carried out in Maoheigou, Qingshuihe and Hebeiba in Wuchuan. After the emergence of weeds in the field, spray Liqing on the stems and leaves of oat seedlings at the 3-4 leaf stage, with a dosage of 100mL / 667m 2 , water consumption 30kg / 667m 2 In Maoheigou, the main distribution is buckwheat seedlings that fell on the ground in the first year, and in Qingshui River and Hebei Ba, it is mainly quinoa. In 2016, a demonstration test of Liqing was carried out in Jining, with a dosage of 100mL / 667m 2 , water consumption 30kg / 667m 2 , the weeds are mainly quinoa and shrubs. The results showed that the control efficiency of Liqing cream in several oat fields could reach more than 90.0%, and it could well remove buckwheat seedlings, quinoa, shrubs and other broad-leaved weeds in the oat fields, and it could increase yield.

Embodiment 3

[0029] Example 3 Field control effect test of herbicide Liqing mixed with 15% thifensulfuron-methyl wettable powder

[0030] The field control effect test of Liqing and 15% thifensulfuron-methyl wettable powder was carried out in the Science and Technology Park of Inner Mongolia Agricultural University, Saraqi Town, Tuyou Banner, Baotou City, Inner Mongolia. The dosage and mixing ratio are shown in Table 3-1, and the water consumption is 30kg / 667m 2 , Spray the stems and leaves of oat seedlings at the 3-4 leaf stage. Observe the safety of each herbicide treatment on oat seedlings after oat emergence, investigate the number of plants 15 days after application, investigate the number of plants and fresh weight 30 days after application, calculate the control effect of plant number and fresh weight, other experimental design, investigation and calculation methods With the method of embodiment 1. Yield and thousand-grain weight were measured after harvest.

[0031] The results...

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Abstract

The invention discloses an oat field weeding composition containing thifensulfuron-methyl and preparation and application methods thereof. Active components of the composition comprise 2-methyl-4-chlorophenoxyacetic acid, bromoxynil and the thifensulfuron-methyl; the mass ratio of the 2-methyl-4-chlorophenoxyacetic acid to the bromoxynil to the thifensulfuron-methyl is equal to (1 to 3) to (1 to 3) to (0.1 to 0.3). The weeding composition disclosed by the invention is dissolved into water in a utilization process and is sprayed on stems and leaves at a 3 to 4 leaf period of oat seedlings; theweeding composition can be used for effectively preventing and controlling broadleaf weeds of an oat field, such as chenopodiaceae and amaranthus retroflexus. The weeding composition provided by the invention has the characteristics of strong selectivity, high prevention effect, good safety and few residues.

Description

technical field [0001] The invention relates to a herbicidal composition containing thifensulfuron-methyl and a preparation and application method thereof, belonging to the technical field of pesticides and plant protection. Background technique [0002] Oat is an important multipurpose crop such as grain, economy, feed and medicine, and is the main economic and edible crop in oat producing areas. The main oat producing areas in China are distributed in the cool regions of North China and Northwest China. [0003] Weed problems are an important factor affecting oat production. Because the weed root system has a strong ability to absorb water and fertilizer, it competes with oats for water, fertilizer and light energy, which seriously reduces the yield and quality of oats, and hinders harvesting and threshing. The oat field mainly distributes xerophytic weeds, such as Chenopodium album, Amaranthus retrofexus, and Salsolacollina. Weeds begin to emerge from mid-May to early ...

Claims

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Application Information

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IPC IPC(8): A01N39/04A01N37/40A01N47/36A01P13/00
CPCA01N37/40A01N39/04A01N47/36
Inventor 张笑宇周洪友孟焕文李得宙邢星刘艳吴进蓉李驰张冬梅王东孟超卢艳丽
Owner INNER MONGOLIA AGRICULTURAL UNIVERSITY
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