Effects of Shade and Biochar Application on the Quercetin Content of Longevity Spinach in Inceptisol

Traditional medicines have been used in both developed and developing countries for a long time, one of which is longevity spinach (Gynura procumbens). Its plants are type plant that by the community to treat various diseases with their flavonoid content. This produces flavonoids, such as quercetin, can be optimized providing shade increasing nitrogen nutrients giving biochar fertilizing. study aimed determine effects biochar, shade, fertilizer on growth quercetin content Gynura procumbens plants. research was arranged randomized complete block design (RCBD) two factors. The first factor administration at four doses, consisting B0 (without biochar), B10 (biochar 10 tons/ha), B15 15 B20 20 tons/ha). Meanwhile, second intensity three levels treatment, namely, I0 shade), I50 (50%), I70 (70%). results showed addition ton/ha 70% increased 0.51%.