Bilaketaren emaitzak - "Humus."

Soil organic matter

Gaiak: “...Humus...”

Soil organic matter its nature, its role in soil formation and in soil fertility nork Kononova, M. M. (Ma�i�i�a Markovna)

Gaiak: “...Humus...”

Organic matter and soils / nork Handreck, Kevin Arthur

Gaiak: “...Humus....”

Humus acids of soils / nork Orlov, D. S. (Dmitrii Sergeevich)

Gaiak: “...Humus....”

Extraction of macro organic matter from soil / nork Holt, J. A.

Gaiak: “...Humus...”

An Agricultural testament / nork Howard, Albert, Sir, 1873-1947

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Advances in soil organic matter research: the impact on agriculture and the environment /

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Soil management : compost production and use inthe tropical and subtropical environments / nork Dalzell, H. W.

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

Gaiak: “...Humus...”

Soil organic matter : biological and ecological effects / nork Tate, Robert L., 1944-

Gaiak: “...Humus....”

Soil organic matter : analysis and interpretation /

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Humic substances, their structure and function in the biosphere proceedings of an international meeting held at Nieuwersluis, the Netherlands, May 29-31, 1972

Gaiak: “...Humus...”

Soil organic matter and biological activity /

Gaiak: “...Humus....”

Humic substances in soil, sediment, and water geochemistry, isolation, and characterization

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The Role of organic matter in modern agriculture /

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The methods of Jean Pain or another kind of garden / nork Pain, Ida

Gaiak: “...Humus....”