Variation of Organic Matter and Nutrient Forms in Pig Bio-bed Litters
MA Han, GUO Hai-Ning, LI Jian-Hui, LI Mai-Jun, YIN Wei-Qin, WANG Xiao-Zhi, FENG Ke, GU Hong-Ru
Journal of Ecology and Rural Environment . 2014, (3): 388 -391 .