SUGARCANE BAGASSE ASH DOSES AFFECT SOIL CHEMICAL ATTRIBUTES AND PIGEON PEA INITIAL PERFORMANCE

Brazil stands out in the international scenario as largest producer of sugarcane, processing billions tons. Thus, this activity generates residues, such ashes from bagasse burning and straw sugarcane cleaning production sugar, alcohol thermal energy. Therefore, objective was to evaluate initial performance chlorophyll content pigeon pea chemical attributes soil after application ash doses. The experiment conducted 2021, a greenhouse located southwestern Goiás, Brazil. design used completely randomized, composed five doses: 10, 20, 30, 40 50 Mg ha-1 control treatment, with four replicates, totaling 24 experimental units. use only fertilizer source causes linear increases growth contents total b, reaching maximum increments estimated doses 35.9 38.9 ha-1. Applications high promoted improvements fertility, increase pH, P, K base saturation well reduction aluminum saturation. Calcium magnesium reached 39.5 66.7 ha-1, respectively.