Humus, its structure and role in agriculture and environment : proceedings of the 10th Symposium Humus et Planta, held in Prague, in August 19-23, 1991 /
International Symposium "Humus et Planta"(10th :1991 :Prague, Czechoslovakia)
Kubát, J.
Amsterdam ; New York : Elsevier ; New York, NY, USA : Distributors for the U.S. and Canada, Elsevier Science Pub. Co.,
1992.
Includes bibliographical references.
Humus
Crops and soils