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Study on daily dynamics of photosynthesis of alfalfas with different growing years in the Loess Plateau
WAN Su-mei, JIA Zhi-kuan . Study on daily dynamics of photosynthesis of alfalfas with different growing years in the Loess Plateau[J]. JOURNAL OF NATURAL RESOURCES, 2009 , 24(6) : 992 -1003 . DOI: 10.11849/zrzyxb.2009.06.006
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