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钾肥对白桦生理特性及三萜含量的影响
姬晓明 齐凤慧 尹静 詹亚光
The Effects of Potassium Fertilizer on Physiological Characteristics and Triterpene Contents in Betula platyphylla Suk.
中国农学通报 . 2012, (4): 13 -17 .  DOI: 10.11924/j.issn.1000-6850.2011-2837