Production and Quality of Canavalia rosea (Sw.) DC. Seedlings Under the Influence of Substrate and Chemical Fertilization

The success in the recovery of degraded areas is dependent on the acquisition of quality seedlings coupled. However, nursery activity is complex and involves significant operational and input costs. The present work had as its objective to evaluate the effects of the substrate and the chemical fertilization on the production and quality of Canavalia rosea (Sw.) DC. seedlings and their respective production costs. Ten treatments were tested, consisting of two substrates with sand: clay:coconut fiber (2:1:1 and 1:2:1) and five fertilizations (without fertilizer, with simple superphosphate, simple superphosphate + micronutrients, with NPK 04-14-08, and NPK 04-14-08 + micronutrients). The emergence speed index, emergence percentage, seedling height, stem diameter, leaf number, leaf area, shoot, root, and total dry mass, and Dickson quality index were evaluated. The 1:2:1 substrate and the fertilization levels with simple superphosphate, with simple superphosphate + micronutrients, with NPK 04-14-08, and with NPK 04-14-08 + micronutrients were higher than the control, with values 17% higher for seedling height, 5.4% for the number of leaves, and 18.9% for leaf area. Aiming at the low cost and the quality of the seedlings, it is recommended to use the substrate in the proportion 1:2:1, and fertilization with simple superphosphate.