Effects of NPK Fertilizer Application Rates and Intra-row Spacing on Yield of Radish (Raphanus sativus L.)

Field experiments were conducted during 2013 rainy season at the Kano State Institute of Horticulture Bagauda, Kano and Federal College of Horticulture Research and Training Farm Dadinkowa, Gombe State. The experiment investigated the effect of NPK fertilizer application rates and intra-row spacing on yield of radish (Raphanus sativus L.). The treatments were six level of NPK fertilizer (0, 40, 80, 120, 160 and 200 kg/ha) and three levels of spacing (10, 15 and 20 cm). The treatments were laid down in a randomized complete block design (RCBD). Yield and yield components were measured and data were analyzed using ANOVA. Intra-row spacing significantly affected root diameter and root length. The result of the study indicated that increasing level of NPK fertilizer from 0 to 200 kg/ha increased significantly yield components. Increasing intra-row spacing from 10 to 20 cm had produced significant increase in yield characters, including root yield in both locations. The significant interactions were recorded on yield characters such as root diameter and root length. Finally 120 kg with 20 cm intra-row spacing appeared optimum for good yield of radish.