耕地灌溉率、复种指数、耕地灌溉面积、粮食产量不断提高；

At the same time, the multiple cropping index, irrigation area, grain yield and the rate of irrigation had been improved increasingly.

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井灌井排技术有效地降低了地下水位，土壤明显脱盐，作物产量不断提高。

With the massive groundwater pumped for irrigation, there was an apparent decrease of groundwater depth and desalinization in soil layers that led to a substantial increase of crop production.

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需求的增长使得产量随着供给曲线不断提高，由此带来的成本上升最终引起了价格的上涨。

The increase in demand moves output out along the supply curve, increasing cost and therefore price.

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