油稻连作是指油菜收获后在同一田块上移栽种植水稻的两熟制高效率种植模式。
The cole-rice farming model is a high efficiency farming mode that transplanting rice at the same cropland after cole reaped.
在小麦、玉米一年两熟制农田上，进行耕法定位及配合试验，试验表明，耙茬少耕的有效年限为1 ~2年。
Tillage location test and its cooperative test in the wheat-maize double cropping field showed that the best time limit for applying disc plough was one or two years.
研究得到的两系法杂交稻制种技术的气象学方法可供其他熟制地区应用。
The agrometeorological technique for making hybrid rice seeds is applicable to zones of other rice cropping systems.
本文研究的非线性规划综合配备法，是一种能比较全面地适应华北平原一年两熟耕制的配备计算方法。
Therefore, an integrated disposition algorithm based on nonlinear programming, which can be suitably applied in two crops a year area in North China Plain, is developed and validated.
本文研究的非线性规划综合配备法，是一种能比较全面地适应华北平原一年两熟耕制的配备计算方法。
Therefore, an integrated disposition algorithm based on nonlinear programming, which can be suitably applied in two crops a year area in North China Plain, is developed and validated.
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