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.
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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