TY - JA AU - Jenkinson,D.S. TI - Studies on the decomposition of plant material in soil. V. The effects of plant cover and soil type on the loss of carbon from 14C labelled ryegrass decomposing under field conditions U1 - 78-256140 PY - 1977/// KW - Soil biology N1 - 13 ref T2 - Journal of Soil Science ER -