...一年两熟； 可持续性； 生产潜力 中图分类号： S512.1 文献标志码： A 论文编号： 2010-2148 [gap=1333]Key words: Shandong Province; grain production; double cropping a year; sustainability; potential productivity 产量居全国第二位 [1]。
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泾渭鲜枣一年两熟丰产 China Agricultural Information
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桂南巨峰葡萄一年两熟栽培技术可增加一造产量。
Kyoho grape in south Guangxi can increase one season's yield by two-harvest-a-year cultivation technique.
中国的南方一带的主要农作物是水稻；这个地方的水稻可达到一年两熟或是两年三熟。
The main crop in southern China is rice, which could be harvested for two times per year, or three times every two years here.
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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