The effect of weeding with two kinds of fertilizers on sweet potato (Ipomoea batatas L.) growth and yield

Abstract

Sweet potato is the main food resources for human life besides that of rice. An experiment to find out the effect of weeding with two kinds of fertilizer on the growth of yield sweet potato (Ipomoea batatas L.) was conducted at UB Agro Techno Park, Jatikerto, Kromengan, Malang, East Java, from April until to 2017. The experiment used a randomized block design with six treatments consisting of G1 (organic fertilizer + weeding 15 days after planting = DAP), G2 (inorganic fertilizer + weeding at 15 DAP), G3 (organic fertilizer + weeding at 15 and 30 DAP), G4 (inorganic fertilizer + weeding at 15 and 30 DAP), G5 ( organic fertilizer + weeding 15, 30 and 45 DAP), G6 (inorganic fertilizer + weeding at 15, 30 and 45 DAP) with three replications. The results showed that weeding three times (15, 30 and 45 DAP) significantly reduced the dry weight of weeds, improved the growth and yield of sweet potato with two kinds of fertilizers.