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Weeding composition for oat fields and preparation and application method of weeding composition

A herbicidal composition and oat technology, applied in botany equipment and methods, herbicides and algicides, chemicals for biological control, etc., can solve the problem of unstable weeding effect of sensitivity, reduction of oat quality and yield, No adverse effects on the quality of oats and soil, reducing the dosage of drugs, and reducing residues

Inactive Publication Date: 2014-08-06
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. At present, wheat herbicide is usually used for weeding. However, the differences in the planting areas of oats and wheat and the sensitivity to herbicides make the herbicide effect very unstable. Oat production presents certain difficulties
For example, the main herbicide used is 2,4-D butyl ester. Although the control effect is good, but field observations show that the herbicide will cause deformed roots of growing plants, slow root growth, reduced root system, reduced tillering, thinner grains, and lower shell rate. Increase, decrease oat quality and yield

Method used

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  • Weeding composition for oat fields and preparation and application method of weeding composition
  • Weeding composition for oat fields and preparation and application method of weeding composition
  • Weeding composition for oat fields and preparation and application method of weeding composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] The field test of embodiment 1 herbicide

[0021] A field test of herbicides was carried out in Shangtuhai, Inner Mongolia. The herbicides were formulated with 40% Liqing EC and 75% Trisulfuron-methyl water-dispersible granules. The dosage and mixed dosage are shown in Table 1, and the water consumption was 450kg / hm 2 , Spray the stems and leaves of oat seedlings at the 2-3 leaf stage.

[0022] The safety and herbicidal effect of herbicides on oats were investigated 20 days and 45 days after application, and the yield and thousand-grain weight were measured after harvest.

[0023] The results showed that the two herbicides could be mixed without delamination, flocculation, precipitation and crystallization after mixing.

[0024] The performance of the plants was observed in the field, and all dosages were safe for oats without phytotoxicity. 20 days after spraying, the number of plants has a control effect, and the dosage of Liqing cream is 750mL / hm 2 When the dosage...

Embodiment 2

[0030] Embodiment 2 herbicide field test

[0031] In Wangguiyao Village, Qingshuihe County, Inner Mongolia, and Maoheigou Village, Wuchuan County, a field test was conducted on the herbicide 40% Liqing EC and 75% tribenuron-methyl. Dosage and mixed dosage are shown in Table 2, and water consumption, treatment method, and investigation method are the same as in Example 1.

[0032] According to the observation of plant performance in the field, each dosage is safe for oats, and there is no phytotoxicity. The control effect of the number of plants in the Wuchuan Maoheigou experimental field was measured 20 days after the application of the pesticide, and the control effect of the number of plants in the Wangguiyao experimental field of the Qingshui River was measured 48 days after the application of the pesticide.

[0033] The result shows that two kinds of herbicides can be mixed as the herbicide of the present invention, and there is no precipitation after the mixed use, and t...

Embodiment 3

[0040] Embodiment 3 field demonstration test of herbicide Liqing EC and tribenuron-methyl mixed

[0041] In 2013, in Wangguiyao Village, Qingshuihe County, Inner Mongolia, a field demonstration experiment was conducted on the herbicide 40% Liqing EC and 75% Trisulfuron-methyl. The demonstration area is 10 mu, and the ratio of the two herbicides used is 750mL / hm 2 +3.375g / hm 2 、750mL / hm 2 +5.625g / hm 2 、750mL / hm 2 +7.875g / hm 2 、750mL / hm 2 +11.25g / hm 2 , water consumption, processing method, investigation method are the same as embodiment 1.

[0042] The results show that the demonstration effects are 92.5%, 88.79%, 85.63%, and 89.10%, respectively. No adverse effects on yield and thousand-grain weight.

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Abstract

The invention discloses a weeding composition for oat fields and a preparation and application method of the weeding composition. The composition comprises the active ingredients as follows: agroxone, bromoxynil and tribenuron-methyl, and the mass ratio of agroxone, bromoxynil and tribenuron-methyl is 1:1: (0.02-0.06). When in use, the composition is soluble in water, is used for stalk and leaf spraying during the 2-3 leaf stages of oat seedlings, can effectively prevent and control broad-leafed weeds in the oat fields, has special effects on chenopodium album and salsola collina, and has the characteristics of strong selectivity, high prevention effect, good security and few residues.

Description

technical field [0001] The invention relates to a herbicidal composition and its application method, belonging to the technical field of pesticides and application. 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. In recent years, my country's oat industry has developed rapidly, and the main oat production areas are distributed in the cool and cold areas of North China and Northwest China. [0003] With the continuous expansion of oat planting area, the problem of weeds has become 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 fields mainly distribute xerophytic weeds, such as Chenopodium album, Amaranthus re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N47/36A01P13/00A01N39/04A01N37/40
Inventor 张笑宇周洪友赵桂琴东保柱段靖孟超岳文冉
Owner INNER MONGOLIA AGRICULTURAL UNIVERSITY
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