尼勒克县春小麦田杂草调查及防治策略

运用倒置“W”9点取样法对新疆尼勒克县春小麦田杂草调查结果表明:尼勒克县春小麦田杂草有15种,隶属11个科,其中豆科4种,菊科2种,禾本科、十字花科、旋花科、唇形花科、蓼科、藜科、木贼科、桑科、紫草科各1种。其中块茎香豌豆、野燕麦和苦苣菜几种杂草的相对多度分别为54.9%、52.3%和46%,为优势种群。根据其杂草分布特点,采取农业、物理机械及化学防治措施,能有效控制草害发生与危害。

The investigation of wheat's field weeds and their controlled strategy in Nilek

The result of investigation by using reverse "w" sampling method to the weeds of wheat field in Nilek shows there are 15 weeds of wheat field in Nilek, Xinjiang. These weeds belong to 11 sectors, are separately Legu-minosae , Compositae, Gramineae, Cruciferae, Convolvlaceae, Labiatae, Polybonaceae, Chenopodiaceae, Equi-setaceae , Moraceae and Boraginaceae.The RA of weeds such as Lathynls tuberosus , Avena fatua and Sonchus der-aceus are 54.9% , 52.3% and 46% , these weeds belong to predominant varieties. According to the character of weeds' distribution, adopting agricultural, physical and chemical control may effectively control the occurrence and damage of weeds.