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Revista mexicana de ciencias agrícolas
versão impressa ISSN 2007-0934
Resumo
ORTEGA MARTINEZ, Luis Daniel et al. Efficiency of substrates in soil and hydroponic system for greenhouse tomato production. Rev. Mex. Cienc. Agríc [online]. 2016, vol.7, n.3, pp.643-653. ISSN 2007-0934.
The substrates used in tomato production systems in Mexico under greenhouse conditions are so heterogeneous yields vary. In this study the efficiency of different substrates were evaluated: tezontle, coconut fiber and sawdust-compost mixture in the hydroponic system, as well as soil and soil with plastic mulch with fertigation in tomato production during the season 2013. Results showed that performance with a seeding density of 6 plants m-2 showed significant differences between the substrates, the yield was higher in the volcanic rock with an average of 25.2 kg m-2. Water consumption and nutrient solution was superior in treatments coir (2 708 L m-2) and tezontle (2158 L m-2), the best economic benefit (1.8 pesos) showed him the floor with plastic mulch, yield 23.3 kg m-2 and a coefficient of productivity 63.6 L water per kg m-2 tomato. So that the latter may represent an alternative in saving water and fertilizer.
Palavras-chave : Lycopersicon esculentum Mill.; protected horticulture; nutrient solution.