节水农业的潜力在哪里?

Where Do Potentialities of Water-saving Agriculture Exist?

对渠道工程节水和田间节水的潜力进行了初步分析 ,认为田间节水潜力大于渠道工程节水。目前渠道防渗和管道输水等工程措施仍是节水农业的有效手段。在工程措施达到一定水平后 。

Potentialities of canal engineering water saving and field water saving have been analyzed preliminarily. It is recognized that the potentiality of field water saving is larger than the potentiality of canal engineering water saving. At present, the engineering measures, including canal anti seepage and water delivery by pipeline etc., still are the effective ways for water saving agriculture. After the engineering measures have reached a higher level, the key of developing water saving agriculture is measures for field water saving, by which the crop water productive efficiency will be raised.