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The arid and semiarid region in China covers a very large area, of whichthe arable land without irrigation conditions comprises more than half. Streng-thening rainfed agricultural research and developing rainfed agricultural productionwill be bound to result in further and greater influence upon and to give animmense impetus to transformation of backward conditions/acceleration of
The arid and semiarid region in China covers a very large area, of which a arable land without irrigation conditions comprises more than half. Streng-thening rainfed agricultural research and developing rainfed agricultural productionwill be bound to result in further and greater influence upon and to give animmense impetus to transformation of backward conditions / acceleration of