Ignacio David Fernández1, Juan José López2, Luis Emanuel Visentini3, y María Jimena Lunad Rocha4

1Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental de Cultivos Tropicales  Yuto; Argentina
2Universidad Nacional Salta. Sede Regional Oran; Argentina
3 Instituto Nacional de Tecnología Agropecuaria (INTA).  Estación Experimental Agropecuaria Salta. Agencia de Extensión Rural Metan; Argentina
4 Instituto Nacional de Tecnología Agropecuaria. Estación Experimental Agropecuaria Bella Vista; Argentina

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The objective of this research was to evaluate two soil amendments in an Elpida tomato crop. Soil variables, plant growth and development variables were evaluated. For this purpose, a 3-year trial was planned in a half ha plot located in Colonia Santa Rosa town (Salta province). Replications were in four randomized blocks; amendments were applicated on top of the board with a dose of 1 m3 every 50 linear meters per year. Treatments were: 1) green waste from the meat packing plant (rumen content), 2) composted residue from sugar cane harvest + cattle manure and horticultural discard, 3) control without amendment. After 1, 7 years of evaluation plant growth and development variables show a clear difference in favor of treatments 1 and 2 compared to the control without amendment. For soil variables, there were no statistical differences between treatments, resulting in optimal doses and no physical-chemical imbalances, with an increase in organic matter, pH and EC stability.

Full article (in Spanish)