Soil Fertility in Agroforestry System of Chinese Fir and Villous Amomum in Subtropical China

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A trial of interplanting and non-interplanting villous amomum (Amomum villosum Lour.) under the canopy of Chinese fir (Cunninghamia lanceolata Hook.) at age 22 was established in Sanming, Fujian of China, and a survey on soil fertility was carried out 10
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