Littleseed canary grass is a major weed in wheat field particularly in the rice-wheat cropping system.
草是小麦田的主要杂草，尤其是水稻-小麦复种田块发生较为严重。
Field experiments in wheat were conducted to determine broadleaf weed control efficacy of tribenuron plus synergist.
在田间条件下，用苯磺隆加增效剂对麦田阔叶杂草的除草效果进行了试验。
Wheat field weed survey was conducted using an inverted W-pattern with 9 sampling points in the north region of Heilongjiang province.
运用倒置“W”9点取样法，对黑龙江省北部大豆小麦轮作区小麦田做杂草调查。
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