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Revista mexicana de ciencias agrícolas
versión impresa ISSN 2007-0934
Resumen
FORTIS-HERNANDEZ, Manuel et al. Organic substrates in the production of sweet pepper. Rev. Mex. Cienc. Agríc [online]. 2012, vol.3, n.6, pp.1203-1216. ISSN 2007-0934.
The present work pretends to give information about the use of organic substrates made from bovine manure treated for the production of sweet peppers. The research was made in a green house from 2010-2011 at the Instituto Tecnológico de Torreon (ITT), in Torreon, Coahuila. It was randomized blocks design; considering four treatments with then replications: T1= VermicompostA + Sand; T2= Biocompost + Sand; T3= VermicompostB + Sand and T4= Sand (check; Steiner solution). The substrates mixtures were formulated based on volume, keeping a proportion of 1:1 (v/v), using black polyethylene bags of 10 Kg weight. The genetic material used was the hybrid Calider of yellow fruit blocky type; the experiment was established en 2010-2011. The evaluated variables were plant height, yield and fruit quality, soluble solids, pH, EC, OM, nitrates and ammonium. The results showed a significant response, emphasizing on EC, pH, OM, nitrates, ammonium and yield; being the check treatment with the higher yield (6.93 kg mg-2), followed by vermicompost2 (5.24 kg m-2) and vermicompostA (4.95 kg m-2). The content of nitrates was higher in Biocompost with 540.51 mg Kg1, followed by vermicompostB with 350.47 mg Kg-1. However the evaluated organic substrates showed an ideal chemical characteristic of a good substrate; low CE, high content of MO, pH between 7 and 8; a high content of nitrates and ammonium.
Palabras llave : Capsicum annum L.; ammonium; green house; nitrates.