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硬草(Sclerochloa kengiana(Ohwi)Tzvel)又称耿氏碱茅,为麦田常见的禾本科硬草属一年生杂草。随着稻麦连作面积的扩大,提供了有利于硬草发生危害的条件,加之某些栽培管理措施不当的影响,使硬草对我县三麦生产的威胁日益严重,已构成夏熟高产稳产的极大障碍。为了经济有效的防除硬草的危害,近几年来,我们对其种子萌发的特性进行了观察,取得了初步的结果。
Hard grass (Sclerochloa kengiana (Ohwi) Tzvel), also known as Guggenbak et. Al., Is an annual weed commonly found in hardwood grass. With the expansion of rice-wheat continuous cropping area, which provides the conditions conducive to the occurrence of hard grass damage, coupled with improper cultivation and management of some of the measures to make the hard grass on the threat to the production of Sanmai increasingly serious, has become a summer ripe high-yield Great obstacle. In order to economically and effectively control the harms of hard grass, we have observed the germination characteristics of the seeds in recent years and achieved preliminary results.