safe crop period 安全收割期 ; 安全施药间隔期
Grow-Period Crop Insurance 生长期农作物保险
period of crop rotation 轮作周期 ; 轮作年限
crop rotation period 轮作周期
crop growth period 作物生育期
crop growing period 作物生长期间
delayed crop growth period 农作物生育期延迟
period of crop growth 作物生长时段
A period of freezing weather destroyed a large part of Brazil's coffee crop.
一段时间的严寒天气摧毁了巴西大部分的咖啡作物。
In Pakistan and India, two of the nations that benefited most from the new crop varieties, grain yields more than quadrupled over the period.
在巴基斯坦和印度,这两个从新粮食作物品种中受益最多的国家,在那段时间粮食产量增长了四倍以上。
Writings confirm that this period was a difficult one for Norse settlements in the area, marked by devastating crop failures.
历史记录证实,这一时期对这一地区的北欧定居者来说是相当艰难的时期,最显著的是灾难性的农作物歉收。
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