大麦田间杂草化除药剂筛选试验

Screening of Fungicides for Weed Control in Barley Field

摘要: 目前麦田化除药剂较多，但针对大麦田化除安全的药剂较少且单一。大麦生产中草害的防除逐渐为重点。设立此试验，研究不同药剂对大麦田杂草封闭和早期茎叶化除效果以及对大麦的安全性。结果表明，60%吡酰•异丙隆可湿性粉剂150 g/667 m²对大麦田的硬草和阔叶草封闭和茎叶化除效果都比较好，且对大麦安全；33%氟噻•吡酰•呋悬浮剂80 ml/667 m²对大麦田的硬草封闭效果较好，但对二叶期以上的硬草的茎叶处理效果不佳，对阔叶草封闭和茎叶化除效果较好，且对大麦苗安全。

Abstract: At present, there are many fungicides for the field application of barley, but the fungicides for the field application of barley are few and single. The control of grass damage in barley production is becoming more and more important. The experiment was set up to study the effect of different fun-gicides on weed closure and early stem and leaf removal in barley fields, and the safety of different fungicides to barley. The results showed that 60% pyryl-isopropyl WP (150 g/667 m²) was safe and effective for herbicides and broadleaved grasses in barley fields. The effect of 33% flu thia-zide • pyryl • Furan SC 80 ml/667 m² was better on the herbage in barley fields, but not on the stem and leaf of the herbage above the two-leaf stage, and it is safe for barley seedlings.