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Journal Article 1994

Autor: Rao, Idupulapati M. Ayarza, Miguel Angel Thomas, Richard J.

Soil carbon distribution with depth, stable carbon isotope ratios in soil organic matter and their changes as a consequence of the presence of legume were studied in three 12-year-old tropical pastures (grass alone Brachiaria decumbens (C4), legume alone Pueraria phaseoloides (C3) and grass + l...

Enlace original: https://cgspace.cgiar.org/handle/10568/44183

Investigación en Agricultura
Enlace permanente
Rao, Idupulapati M. ,  Ayarza, Miguel Angel ,  Thomas, Richard J. ,  [The use of carbon isotope ratios to evaluate legume contribution to soil enhancement in tropical pastures] ,  The use of carbon isotope ratios to evaluate legume contribution to soil enhancement in tropical pastures
Journal Article 1998

Autor: Westerhof, R Vilela, L Ayarza, Miguel Angel Zech, W.

The effect of land use on the availability of nitrogen (N) was studied by separating total N into a labile and a stable fraction by oxidation and extraction of labile N with KMnO4. The nitrogen management index (NMI) was calculated following the method of Blair et al. (1995) for the carbon manage...

Enlace original: https://cgspace.cgiar.org/handle/10568/43628

Investigación en Agricultura
Enlace permanente
Westerhof, R ,  Vilela, L ,  Ayarza, Miguel Angel ,  Zech, W. ,  [Land use effects on labile N extracted with permanganate and the nitrogen management index in the Cerrado region of Brazil] ,  Land use effects on labile N extracted with permanganate and the nitrogen management index in the Cerrado region of Brazil

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