在需求管理中，采用既提高灌溉水价又提高工业水价的混合水价政策可能是最优的策略选择，采用农业节水技术为次优策略选择。

For demand managements, the best policy is the mix water price policy through increasing both irrigation and industry water prices, and the next is adopting agricultural water-saving technology.

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水价政策以及水权收益分配模式和节水技术的研究、开发、推广联动机制是农业节水激励机制的重要影响因素。

Water pricing policy, profit distribution of water right, research and development of water-saving technologies are crucial factors in stimulating agricultural water saving.

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应通过政策引导，使节水的同时经济效益也较好，这将有利于苜蓿经济效益与节水效益共同提高。

Therefore, policy should be made to guild the alfalfa industry to save more water and more economic benefit as well in Yongchang County.

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