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Influencia del manejo de dos suelos del trópico húmedo sobre sus propiedades químicas
(Instituto Interamericano de Cooperación para la Agricultura (IICA), 1982-04)
An Inceptisol and an Ultisol were studied in the greenhouse after previous exposure to high or low intensity of cultivation.
The Ultisol is more responsive to similar management practices than the Inceptisol, as it becomes ...
Determinación de S cambiable del suelo por el método colorimétrico del metiltimol azul
(Instituto Interamericano de Cooperación para la Agricultura (IICA), 1982-04)
Traditional methods Jim determinist the exchangeable S of soils lack sensitivity, reproducibility, and are too time consuming. The method described in this paper is more favorable. Blue methylthymol in a high pH (12.70) ...