...耗水系数；生长年限；小型蒸渗仪；北京平原区 [gap=894]Keywords : alfalfa；water use efficiency；water consumption coefficient；growing year；microlysimeter；Beijing plain ...
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气候越干旱，耗水系数越高，水分生产效率越低。
The drier the climate, the higher the water consumption coefficient and the lower the water production efficiency.
试验结果表明：不同灌溉处理下，冬小麦的耗水量、耗水系数、产量不同。
The results showed that water consumption, water consumption coefficient and grain yield of winter wheat varied with different irrigation treatments.
土壤水分周年变化有明显的阶段性，有利于小麦生长，旱塬小麦耗水系数高，水分利用效率低。
The yearly variation of soil and water is obviously characterized by stages, which is favourable for wheat growth.
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