摘要
麦家公已成为新乡县麦田的主要杂草．主要发生原因是麦田长期单一使用２甲４氯除草剂、土壤浅耕等。麦家公的鲜重与小麦的穗数、粒数、产量呈极显著的负相关、与产量损失率呈极显著的正相关，严重影响小麦生产。运用公式求化学防除指标为２０～２５株／ｍ２。
Lithospermum arvense L. has become the chief weed in wheat fields of Xinxiang County.The main causes are the overuse of MCPA weedicide and shallow ploughing of soil,etc. Thefresh weight of lithospermum arvense L. proved to be negative with the number of spikes,grains and yield of wheat, positive with the lost rate of it. The norm of its chemical prevennon is 20￣25 stems per m2 by the formula .
出处
《河南职业技术师范学院学报》
1996年第2期27-30,共4页
Journal of Henan Vocation-Technical Teachers College
基金
河南省自然科学研究基金
关键词
麦田
麦家公
发生指标
防除
杂草
wheat fields, Lithospermum arvense L. occurrence, norm, prevention
