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1Texto bibliotecaFAO IT
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2Composition of the soil organic matter system depending on soil type and land use Composition of the soil organic matter system depending on soil type and land useby Salfeld, J.-C., FAO, Vienna (Austria). Joint FAO/IAEA Div. of Atomic Energy in Food and Agriculture eng, Symposium on Soil Organic Matter Studies eng 6 Sep 1976 Braunschweig (Germany, F.R.), Soechtig, H.
Published JanTexto bibliotecaFAO IT -
3Dynamics of organic forms of nitrogen in the nitrogen cycle of soil Dynamics of organic forms of nitrogen in the nitrogen cycle of soilby Soechtig, H., FAO, Vienna (Austria). Joint FAO/IAEA Div. of Atomic Energy in Food and Agriculture eng, Symposium on Soil Organic Matter Studies eng 6 Sep 1976 Braunschweig (Germany, F.R.), Salfeld, J.-C.
Published JanTexto bibliotecaFAO IT