Comprehensive weeding method of oat field

A technology of oats and herbicides, applied in the field of weeding, can solve the problems of no use in oat fields, etc., and achieve the effect of moderate residual effect period, good safety and remarkable effect

Inactive Publication Date: 2013-08-07
INNER MONGOLIA AGRICULTURAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But it has not been used in oat fields

Method used

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  • Comprehensive weeding method of oat field
  • Comprehensive weeding method of oat field
  • Comprehensive weeding method of oat field

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] Embodiment 1: field control effect test of herbicide Tianpu

[0014] In 2010 and 2012, the field control effect test of the herbicide Tianpu was carried out at several points in Saraqi, Qingshuihe and Wuchuan counties of Inner Mongolia. The dosage is set to 2250mL / hm 2 、2700mL / hm 2 , the water consumption is set to 675kg / hm 2 、900kg / hm 2 , pre-emergence soil spray treatment after sowing. The safety and herbicidal effect of herbicides on oats were investigated 25 days and 45 days after application, and the yield was measured after harvest. Field observation of plant performance, and the measured plant height and plant density results show that each dosage is safe for oats and has no phytotoxicity. 25d and 45d investigations, the control effect of the total number of grasses was over 81.41%, the highest was 93.45%, and the control effect of the number of grasses was over 88.97%, the highest was 100%. Amaranth and cocklebur have remarkable control effects. Yield mea...

Embodiment 2

[0017] Embodiment 2: Effects of different sowing dates on the occurrence of weeds in oat fields

[0018] In 2010 and 2012, experiments were carried out on the effects of different sowing dates on weed occurrence in oat fields in Shangtuhai and Maoheigou Villages, Wuchuan, Inner Mongolia. Five sowing dates were set in May, and the oats at each sowing date were investigated on July 11. The occurrence of weeds in wheat fields, the results show that with the postponement of sowing time, the relative density of several main weeds in the field gradually decreases, and the relative density of weeds in the last sowing time is the smallest.

[0019] Table 1 Relative density of several main weeds in oat field under different sowing dates (Shangtuhai)

[0020]

[0021] Relative density: the ratio of the average density of a weed to the sum of the density of various weeds.

Embodiment 3

[0022] Embodiment 3: the influence of different seeding densities on the occurrence of weeds in oat field

[0023] In 2012, experiments were conducted on the influence of different row spacings on oat field weeds at the Saraqi Experimental Base of Inner Mongolia Agricultural University and Maoheigou Village, Wuchuan County. A total of 10cm, 15cm, 20cm, 25cm and 30cm row spacings were set up, and the weeds were investigated. Grass occurrence, yield measurement after harvest. It was found that there were relatively more weeds in the field when the row spacing was greater than 20cm; when it was greater than 25cm, the weeds grew in rows between the ridges ( figure 2 ), it is difficult to control in the later stage; 15cm is the best row spacing, with relatively few weeds and high yield.

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Abstract

The invention discloses a comprehensive weeding method of an oat field. The herbicide Tianpu used by the method is 450g / L pendimethalin micro-capsules, herbicide dosage is 2250-2700mL / hm2, and water dosage is 675-900kg / hm2. The herbicide is sprayed on the soil after oat is sown and before seedlings sprout, the soil is leveled before the herbicide is used, full closing is guaranteed, and a herbicide layer is prevented from being damaged after the herbicide is used. 10-12cm shallow ploughing is performed on the oat field before the oat is sown, and parts of weeds are removed. The herbicide is used after soaking rail falls or the oat field is watered, the herbicide layer with the thickness of 2-3cm is guaranteed after the herbicide is used, oat planning line spacing is controlled between 12cm and 15cm, and the oat is appropriately sown late in a sowing time. The comprehensive weeding method of the oat field is good in weeding effect, capable of being applied to oat field weeding directly and remarkable in gramineous grass, pigweed, herba portulacae and salsola collina control effect, has small influence on oat quality and environment, and can increase production.

Description

technical field [0001] The invention relates to a weeding technology, in particular to a comprehensive weeding method for oat fields. Background technique [0002] Oat is an important multi-purpose crop for grain, economy, feed and medicine, and belongs to the worldwide cultivated crop. my country is the birthplace of naked oats with a long history of planting. Oats are the main food crops of local residents in the producing areas. In recent years, my country's oat industry has developed rapidly, mainly distributed in the cool regions of North China and Northwest China. With the continuous expansion of oat planting area, the problem of weeds has become an important factor affecting oat production. The huge root system of weeds has a strong ability to absorb water and fertilizer, and it competes with oats for water, fertilizer and light energy, which seriously reduces the yield and quality of oats, and hinders harvesting and threshing. In some areas, the weed community is ...

Claims

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Application Information

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IPC IPC(8): A01M21/04
Inventor 张笑宇周洪友赵桂琴刘景辉伊卫东谷雪菲
Owner INNER MONGOLIA AGRICULTURAL UNIVERSITY
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