Soil fertility and organic matter as critical components of production systems : proceedings of a symposium /

Biology and fertility of soils.
Published: (1985)

Soil organic matter its nature, its role in soil formation and in soil fertility,
by: Kononova, M. M. (Marii︠a︡ Mikhaĭlovna), 1898-1979
Published: (1966)

Soils and fertilizers.

Soil organic matter studies : proceedings of a symposium ... /
Published: (1977)

Soil organic matter : analysis and interpretation /
Published: (1996)

Managing organic matter in tropical soils : scope and limitations : proceedings of a workshop organized by the Center for Development Research at the University of Bonn (ZEF Bonn) - Germany, 7-10 June, 1999 /
Published: (2001)

Proceedings /
Published: (1971)

Erosion and productivity of soils containing rock fragments : proceedings of a symposium /
Published: (1984)

Erosion and productivity of soils containing rock fragments : proceedings of a symposium /
Published: (1984)

Dynamics of soil organic matter in tropical ecosystems /
Published: (1989)

Soils and societies : perspectives from environmental history /
Published: (2006)

Plodorodie pochv /
Published: (1974)

Advances in soil organic matter research : the impact on agriculture and the environment /
Published: (1991)

Soil organic matter ; its nature, its role in soil formation and in soil fertility /
by: Kononova, M. M. (Maĭi͡a Markovna)
Published: (1966)

Soil quality and soil erosion /
Published: (1999)

Towards integrated soil fertility management in Tanzania : developing farmers' options and responsive policies in the context of prevailing agro-ecological, socio-economic and institutional conditions /
Published: (2002)

Microorganisms and organic matter of soils /
Published: (1970)

Soil management for sustainability /
Published: (1991)

Soil management : experimental basis for sustainability and environmental quality /
Published: (1995)

Azot v pochvoobrazovanii i zemledelii /
Published: (1974)

Soil organic matter /
Published: (1978)

Isotopes and radiation in soil organic-matter studies /
Published: (1968)

Building soils for better crops : organic matter management /
by: Magdoff, Fred, 1942-
Published: (1992)

Soil organic matter and biological activity /
Published: (1985)

Soil and water quality at different scales : proceedings of the Workshop "Soil and Water Quality at Different Scales", held 7-9 August 1996, Wageningen, The Netherlands /
Published: (1998)

Soil quality and agricultural sustainability /
Published: (1998)

The Role of organic matter in modern agriculture /
Published: (1986)

Soil organic matter and its role in crop production.
by: Allison, Franklin E. (Franklin Elmer), 1892-1972
Published: (1973)

Nitrogen and soil organic matter : proceedings of a conference organized by the soil scientists of the National Agriculture Advisory Service, October 22nd-23rd 1964.
Published: (1969)

Darwin on humus and the earthworm ; the formation of vegetable mould through the action of worms with observations on their habits /
by: Darwin, Charles, 1809-1882
Published: (1966)

Soil spatial variability : proceedings of a workshop of the ISSS and the SSSA, Las Vegas, USA, 30 November-1 December 1984 /
Published: (1985)

Organic matter content of soil after logging of fir and redwood forests /
by: Durgin, Philip B.
Published: (1980)

Plant adaptation to mineral stress in problem soils : proceedings of a workshop held at the National Agricultural Library, Beltsville, Maryland, November 22-23, 1976 /
Published: (1977)

Methods for assessing soil quality /
Published: (1996)

Soil-resource data for agricultural development /
Published: (1978)

Chemistry of soil organic matter /
by: Kumada, Kyōichi, 1921-
Published: (1987)