PERTUMBUHAN DAN PRODUKSI KACANG TANAH ( Arachis hypogaea L.) PADA BEBERAPA PENGOLAHAN TANAH INSEPTISOL DAN PEMBERIANPUPUK KASCING

Abstract

Peanut is one of the source of protein for human foods. Production of peanuts can be increase by land cultivation and giving vermicompost. This research aimed to evaluate the effect of land cultivation and giving vermicompost for growth and production of peanuts. The study was conducted in Tanjung Sari, Kecamatan Medan Selayang. This research used split plot design, with two factors. First factor is land cultivation with 4 levels (traditional tillage with two stage of cultivation, traditional tillage with one stage of cultivation, minimum tillage, and no-tillage).The second factor is the ratio of vermicompost and chemical fertilizers, whith 5 levels (chemical 100%,vermicompost 100%, vermicompost 75% + chemical fertilizer 25%, vermicompost 50% + chemical fertilizer 50%, and vermicompost 25% + chemical fertilizer 75%. The result showed that land cultivation significantly affected the parameters the number of ginofor 2 and 3 month after planting (MAP), the number of filled pod, 100 seed weigth, production per sample and production per plot. The ratio of vermicompost and chemical fertilizers significantly affected the parameters of the number of branch 1 and 2 MAP. The interaction between land cultivation and the ratio of vermicompost and chemical fertilizers did not significantly affected for all parameters. Keywords : land cultivation, vermicompost, peanuts.