4种除草剂对春玉米整秆覆盖免耕田杂草防除的效果  

Effects of 4 herbicides on weeds control in spring maize covered whole stalk and zero-tillage field

作　　者：靳鲲鹏 李丹[1] 李万星 曹晋军 李小霞 刘永忠 JIN Kunpeng;LI Dan;LI Wanxing;CAO Jinjun;LI Xiaoxia;LIU Yongzhong(Institute of Millet,Shanxi Agricultural University,Changzhi 046011,China)

机构地区：[1]山西农业大学谷子研究所,山西长治046011

出　　处：《北方农业学报》2020年第4期90-93,共4页Journal of Northern Agriculture

基　　金：山西省农业科学院有机旱作农业研发专项(YCX2017D2404);山西省重点研发计划重点项目(201703D211002-6);山西省重点研发计划项目(201903D221060)。

摘　　要：【目的】研究不同种类及用量的除草剂在春玉米整秆覆盖免耕田的杂草防除效果。【方法】采用田间随机区组排列,调查研究50%乙草胺、48%乙·莠、41%异丙草·莠、42%丁·异·莠去津4种不同类型除草剂对春玉米田杂草的防除效果和对春玉米产量的影响。【结果】42%丁·异·莠去津1500 mL/hm2处理效果最好,42 d后单子叶杂草防效72.0%、双子叶杂草防效85.4%,单子叶杂草鲜重抑制率70.0%、双子叶杂草鲜重抑制率80.6%,产量11390 kg/hm2。【结论】在山西省长治地区春玉米整秆覆盖免耕田推荐使用42%丁·异·莠去津,剂量为1500 mL/hm2。【Objective】To research the weeds control effect of different kinds and dosage of herbicides in spring maize whole-stalk and zero-tillage field.【Methods】Four types of herbicides,i.e.50%acetochlamine,48%ethyl atrazine,41%isopropyl atrazine,and 42%Butachlor·Metolachlor·Atrazine,were tested by random group in the field to research the control effect and yields of 4 herbicides on weeds in spring maize field.【Results】The best treatment effect was 42%Butachlor·Metolachlor·Atrazine at 1500 mL/hm2,the control effect for monocotyledon weeds was 72.0%,dicotyledon weeds was 85.4%after 42 d,the inhibition rate of fresh weight of monocotyledon weeds was 70.0%,the inhibition rate of fresh weight of dicotyledon weeds was 80.6%,and the yield was 11390 kg/hm2.【Conclusion】It is recommended to use 42%Butachlor·Metolachlor·Atrazine at a dose of 1500 mL/hm2 in spring maize zero-tillage field covered by whole stalk in Changzhi area of Shanxi Province.

关 键 词：除草剂 春玉米田 防除效果 产量 

分 类 号：S513[农业科学—作物学]