Efeito de biofertilizantes produzidos de sementes trituradas de açaí no crescimento de Capsicum chinense Jacq.

Abstract

This study evaluated the effect of biofertilizers produced from açaí seeds discarded by açaí traders in the municipality of Laranjal do Jari, Amapá, Brazil, on the cultivation of Habanero pepper (Capsicum chinense Jacq.). The experimental design adopted was completely randomized with nine replications. The treatments consisted of biofertilizer composed of 100% açaí seeds, a mixture of 50% açaí seeds with 50% cattle manure, NPK chemical fertilizer, and the control. Plant height, total number of leaves, fresh and dry mass (shoot and root), and leaf area were evaluated. Although NPK generated higher mean values, no significant differences were found between treatments in terms of height, number of leaves, dry mass of the shoot and root of the plants. Leaf area was significantly higher in the control group, but mineral fertilization increased the dry and fresh mass of the plants. It is necessary to increase the proportion of açaí and cattle manure when diluted with water, since the nitrogen content in the proportion used did not present sufficient nitrogen content to increase the vegetative growth of the plants.