preemergence

英[ˌpriːɪ'mɜːdʒəns] 美[ˌpriːɪ'mɜːdʒəns]
  • adj. (植物种子)出土前的;出土前施用的
  • pree vt.(尤指通过品尝的方法)尝试证实.
  • preem n.初次上演
  • preemie n.早产儿=premie
  • preempt v.以优先购买权获得;先占;(桥牌中)先发制人地叫牌;优先;取代
  • preemptor n.获优先购买权者;先取者
1. Compounds were sprayed immediately after seed planting (preemergence treatment) or after the expansion of the first true leaf (postemergence treatment).
在播种后(萌前处理)或第一片真叶展开后(萌后处理)立即喷洒化合物。

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2. Compounds were sprayed immediately after seed planting (preemergence treatment) or after the expansion of the first true leaf (postemergence treatment).
在播种后(萌前处理)或第一片真叶展开后(萌后处理)立即喷洒化合物。

youdao