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目前,对影响旱地农业生产进一步发展的主要限制因素的看法有两种观点:一种认为影响旱地农业生产的限制因素是水;一种观点认为肥影响了旱地农业生产的提高。然
At present, there are two perspectives on the main limiting factors that affect the further development of dryland agricultural production: one is that water is the limiting factor affecting dryland agricultural production; and the other is that the fertilizer affects the improvement of dryland agricultural production. Of course