Effects of continuous cropping of wheat and alfalfa on soil enzyme activities and nutrients. (English)

Autor: ZHANG Li-qiong, HAO Ming-de, ZANG Yi-fei1, LI Li-xia4

Publikováno v: Chinese Journal of Applied Ecology / Yingyong Shengtai Xuebao; Nov2014, Vol. 25 Issue 11, p3191-3196, 6p