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THE PROSPECT OF DRYLAND FARMING AND IRRIGATED FARMING IN HUANG-HUAI-HAI PLAIN BASED ON THE ANALYSIS OF THE PRECIPITATION-SOIL-CROP SYSTEM https://www.jnr.ac.cn/EN/10.11849/zrzyxb.1988.02.006
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THE PROSPECT OF DRYLAND FARMING AND IRRIGATED FARMING IN HUANG-HUAI-HAI PLAIN BASED ON THE ANALYSIS OF THE PRECIPITATION-SOIL-CROP SYSTEM https://www.jnr.ac.cn/EN/10.11849/zrzyxb.1988.02.006
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