天津农业科学2019，Vol.25Issue(1)：20-25,6.DOI:10.3969/j.issn.1006-6500.2019.01.005
几种茎叶除草剂桶混配方的控草效果及对玉米生长发育的影响
Weeds Control Effect of Several Mixed Herbicides and Influence on the Growth and Development of Corn
摘要
Abstract
Under the conditions of dryland in eastern Gansu, the control effect of several mixed herbicides in corn field were determined. The results showed that the plant control effect of weeds of 4％ nicosulfuron SC+30％ bromoxyniloctanoate EC, 4％nicosulfuron SC+75％ clopyralid SG+90％ atrazine WG, 4％ nicosulfuron SC+48％ bentazone AS were 94.84％, 90.76％ and 84.28％, respectively.The fresh quality control effect were 99.65％, 99.84％ and 98.39％, respectively. The mixed herbicides effectively controlled broadleaf weeds with 83.26％ ～100％ plant density reduction and 99.97％ ～100％ fresh quality inhibition. It was high safety for corn, the yield increased slightly or decreased by 0.05％, 2.81％ and 3.90％, respectively. The mixed herbicides were suitable to be popularized in the large area of the corn field in eastern Gansu. The control effect of 4％nicosulfuron SC+100 g·L-1 mesotrione SC was good, but it has a recessive effect on corn, the reduction of yield was larger than that of artificial weeding by 16.12％, and the production should be carefully selected. The control effect of grass weeds of other herbicides were not good and the safety of corn was poor, so it should be avoided in production.关键词
露地玉米田/除草剂/桶混配方/控草效果Key words
corn/herbicides/mixed formulation/weeds control effect分类
农业科技引用本文复制引用
李青梅..几种茎叶除草剂桶混配方的控草效果及对玉米生长发育的影响[J].天津农业科学,2019,25(1):20-25,6.基金项目
甘肃省农业科学院院地科技合作项目(2015GAAS07) （2015GAAS07）
甘肃省玉米产业技术体系病虫害鉴定与防控研究岗位(GARS-02-03) （GARS-02-03）
甘肃省科技支撑计划项目(1011NKCA065) （1011NKCA065）
平凉市农业科学院科技计划项目(2014018) （2014018）
国家公益性行业(农业)科研专项(201303022) （农业）
