病菌在田间条件下，只能存活两个生长季节。
The fungus could only live for two seasons under the field conditions.
在田间条件下，研究不同类型专用小麦品种籽粒淀粉积累动态。
Dynamics of grain starch accumulation in wheat for different end USES were studied.
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。
Field experiments in wheat were conducted to determine broadleaf weed control efficacy of tribenuron plus synergist.
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