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Herbicidal composition for oat fields and containing penoxsulam and preparation and using methods thereof

A herbicidal composition, penoxsulam technology, applied in botany equipment and methods, herbicides and algicides, applications, etc., can solve the problem of lower oat quality and yield, root deformity of growing plants, and increased shelling rate and other problems, to achieve the effect of reducing the dosage, increasing the duration of effect and reducing the residue

Pending Publication Date: 2019-05-10
INNER MONGOLIA AGRICULTURAL UNIVERSITY
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  • 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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  • Herbicidal composition for oat fields and containing penoxsulam and preparation and using methods thereof
  • Herbicidal composition for oat fields and containing penoxsulam and preparation and using methods thereof
  • Herbicidal composition for oat fields and containing penoxsulam and preparation and using 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 oat was observed, the number of weeds was investigated after 15 days of application, and the number and fresh weight of weeds were investigated after 30 days of application. The survey method adopts the quadrat sampling method, except for the plants within 0.5m of the edge of the field, random...

Embodiment 2

[0027] Example 2 Demonstration test of herbicide Liqing

[0028] In 2014, a small-scale demonstration of the herbicide Liqing was carried out in Maoheigou, Qingshuihe and Hebeiba in Wuchuan. After the weeds emerged 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 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 herbicides Liqing and Daojie mixed

[0030] The field control effect test of the mixed use of Liqing and Daojie was carried out at the Yanmai Academician Station Base in Ulanchabu City, Jining. 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 showed that the two herbicides could be mixed, and there was no delamination, flocculation, precipitation, crystallization...

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Abstract

The invention discloses a herbicidal composition for oat fields and containing penoxsulam and preparation and using methods thereof. Active ingredients of the composition include methoxone, bromoxyniland penoxsulam according to a mass ratio of (1-3):(1-3):(0.1-0.4). When in use, the herbicidal composition is dissolved in water, and steam-leaf spraying is performed in a period of oat seedlings with 3-4 leaves, so that oat field broadleaf grass can be effectively prevented and removed. The herbicidal composition has the advantages of high selectivity, good prevention effect, high safety and little residue.

Description

technical field [0001] The invention relates to a herbicidal composition containing penoxsulam and its preparation and use methods, 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 June in the west and nor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N39/04A01N37/40A01N43/90A01P13/00
Inventor 张笑宇周洪友孟焕文李得宙王凤梧邢星李宇晨刘雨薇王千军祁军邦梁燕孟超
Owner INNER MONGOLIA AGRICULTURAL UNIVERSITY
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