Resumen

RODRIGUEZ R., Julio César  y  MARCANO C., Ángel Esteban. Caracterización química del composte nutribora y su uso combinado con un fertilizante comercial en el cultivo de tomate. INCI [online]. 2004, vol.29, n.5, pp.267-273. ISSN 0378-1844.

NUTRIBORA compost is prepared with Eichhornia crassipes, cow manure and moriche grove soil. This compost increments tomato production when used at an optimum dose of 80t·ha^-1. Chemical analysis was carried and the optimum dose of NUTRIBORA, combined with a mineral fertilizer, was used to determine tomato yield. Experiments were carried out with the "Río Grande" tomato variety in experimental parcels where four treatments were applied, T₁: 80t·ha^-1 NUTRIBORA + 0.4t·ha^-1 plus NPK 12-24-12 in virgin soil fertilized with the compost for one year, T₂: 80t·ha^-1 NUTRIBORA + 04t·ha^-1 plus NPK 12-24-12 in soil without previous sowing nor treatment, C₁: Control with 0.4t·ha^-1 and NPK 12-24-12 in soil without previous sowing nor treatment, and C₂: Control with 80t·ha^-1 NUTRIBORA in soil without previous sowing nor treatment, as well as two different distances (0.20 and 0.40m) between plants. A random block statistical design used in a factorial (4x2) arrangement with six repetitions, for a total of 48 treatments. The soluble and total content of P in NUTRIBORA were low in relation to the other nutrients, while soluble and total K had the highest concentration. Fe y Mn had the highest concentration among the total and soluble micronutrients. The tomato yield varied significantly between the treatments (P<0.05), being largest with T₁ and lowest with T₄. Different seeding distances between plants did not significantly affect the yield (P>0,05).

Palabras clave : Abono Orgánico; Abono Inorgánico; Eichhornia crassipes; Nutrientes; Tomate.