黄淮海平原农林生态系统N、P、K营养元素循环——以泡桐-小麦、玉米间作系统为例
吴刚, 冯宗炜, 王效科, 刘国华
N, P and K recyclings in an agroforestrial ecosystem of Huanghuaihai plain: with Paulownia elongata-intercropped wheat and maize as an example
Wu Gang, Feng Zongwei, Wang Xiaoke, Liu Guohua
应用生态学报
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1993, (2): 141
-145
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