Resumo

GARCIA MENDIVIL, Helio Adán et al. Effect of Fertilization with Used Mushroom Substrate Based Compost on Phaseolus vulgaris L. Yield. Terra Latinoam [online]. 2014, vol.32, n.1, pp.69-76. ISSN 2395-8030.

Organic waste and compost are sources of essential nutrients for sustainable agriculture. They can provide natural fertilizer, reduce environmental pollution, and thereby lower production costs. The aim of this study was to assess the effect of applying compost made with used mushroom substrate and enriched with silicon to the soil on bean (Phaseolus vulgaris L.) performance. The field experiment was established with the bean var. Pinto Saltillo in Huatabampo, Sonora, in a light alluvial soil. The experimental design was randomized blocks, consisting of 4 treatments with four replicates: 1 - control (no application), 2 - 2.5, 3 - 5 and 4 - 7.5 Mg ha-1 of compost. The variables evaluated were total chlorophyll, photosynthetic rate (µg CO2 S-1 cm-2), number of pods per plant and yield. An analysis of variance was performed on the data, and means were compared using the Tukey test (P ≤ 0.05). Significant responses were found in most of the evaluated variables. Total chlorophyll increased to 26.2% in treatment two, photosynthesis increased to 26.1% in treatment four, number of pods was 8.7% higher in treatment three. Treatment three had the highest yield with 2.91 Mg ha-1, followed by treatment two with 2.89 Mg ha-1, treatment four with 2.85 Mg ha-1, and finally the control with 1.4 Mg ha-1. The results suggest that the use of this compost is a viable option for fertilization in bean production.

Palavras-chave : biofertilizer; productivity; efficiency; plant nutrition.