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麦田多种禾本科杂草在幼苗期与小麦伴生性强,相互之间的外部形态特征比较接近,难以识别。在进行化除的幼苗期,找出每种杂草的重要特征,准确识别不同种类,选用最有效药剂,对提高麦田化除水平至关重要。现很多文献资料对每种杂草进行全生育期描述,重点不突出,附成株期图片,实际用于幼苗期识别参考性不强。笔者依据田间调查,温室内标记种植,查阅参考经典文献,对麦田已经发生危害的10种禾本科杂草,找出每种幼苗期外部形态的主要特征,便于识别应用,供大家参考指正。
A variety of gramineous weed in wheat field with wheat at the seedling stage strong correlation between the external morphological characteristics are relatively close, difficult to identify. In the process of chemical removal, identifying the important characteristics of each weed, accurately identifying the different species, and selecting the most effective agent is crucial to improving the level of wheat field removal. Now many literature on the description of the whole growth period of each weed, the focus is not prominent, attached to the pictures at the seedling stage, the actual reference for seedling identification is not strong. According to field investigation, planting in greenhouse, reference to the classic literature, the author has found 10 main types of grass weeds that have been harmed in the wheat field, and found out the main features of the external shape of each seedling stage for identification and application for reference.