Productivity of Butterfly Pea (Clitoria ternatea L.) Influenced by Urea Fertilizer Rates and Harvest Ages in Kulon Progo, Yogyakarta, Indonesia

Butterfly pea (Clitoria ternatea L.) is leguminous species that contain high nutritional values. This study aimed to determine the effect of rate urea fertilizer and harvest age on productivity butterfly forage. research used a split-plot design consisting rates (0, 100, 200 kg/ha) ages (30, 45, 60 days after planting or DAP) with three replications. The variables observed were morphological growth (plant height, stem diameter, number leaves, branches), forage biomass (fresh weight, dry crude protein). data obtained analyzed using ANOVA means separated by Duncan's Multiple Range Test (DMRT). interaction between was shown (p<0.05) branches, fresh weight pea. increased significantly affected in biomass. application plant length from 10.59 17.16%, diameter 12.12 24.24%, leaves 15.40 28.20%, branches 81.82 190.91% compared control. It concluded ages. Treatment kg/ha DAP produced highest productivity.