@ARTICLE {NORGROVE:2000, title = {Production and nutrient content of earthworm casts in a tropical agrisilvicultural system}, author = {Norgrove, L. and Hauser, S. }, journal = {Soil Biology and Biochemistry}, year = {2000}, volume = {32}, number = {11-12}, pages = {1651--1660}, issn = {0038-0717}, }