Efecto de composta de basuras urbanas sobre características específicas de suelo y planta

Abstract

The present work was established according to the following objetives: 

To determine the effect of urban garbage compost upon the germination of six species vegetables, and assess its effect upon foliar concentration in corn plant. 

For to determine the effect of compost dosages upon the germination of the species included, nine treatments were evaluated. The surveyed levels were zero, 10, 15, 20, 25, 50 and 75 ton/ha, in addition to a treatment with compost in pu- re state and the absolute control as destilate water. A randomized blocks experi- mental design with four replicates was used. The results, indicated a negative effect of compost upon shorgum, wheat, and barley germination. Bean and corn showed a better response at germination and vigor. 

For to evaluate the nutriments in a foliar concentration, the assays reported by Reuter and Robinson (1986) and Mengel and Kirkby (1982), were used. The explored compost levels were zero (control), five, 10, 15, 20 and 25 ton/ha, added at two different dates 15 days before the sowing and at sowing time. 

Significant differences were found between dates of application, the results indicate that the largest concentration of major elements was found in plants un- der compost application 15 days before sowing. The micronutrients concentration was higher in plants under compost application at sowing time.