This paper described the interactive effects of fertilizer and water on yield and potential yield increase of crops.
本文阐述了养分和水分对作物产量及其增产潜力的交互影响。
The results indicated that the potential yield increase was greater in the soil loss region of Loess Plateau, and the present yield only reached 74.
结果指出，该区粮食增产潜力很大，目前整体产量水平仅达到试区攻关水平的74。
Comparison of dryland potential yield increase in gully and hilly regions of Loess Plateau shows that potential yield increase in hilly region is 117.6%, and only 56.6%in gully region.
在黄土台塬区和丘陵区中，丘陵区的粮食增产潜力较台塬区大，前者尚有117.6 %增产能力，后者仅56.6%。
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