Determination of fertilizer rates and intra-row spacing on yield and yield components of onion (Allium cepa L. Var. cepa) under irrigation in site zone, Somalia region, Eastern Ethiopia

Abstract

A field experiment was concted in Harwa irrgation station in 2017/18 to assess effect nitrogen fetlizer to observe and intra-row spacing on yield and yield components of Adama Red onion (Allium cepa L.) experiment observe the effect of six N rates (0, 46, 69, 92, 115 and 138 kg ha-1) and four intra-row spacing levels (7.5, 10 12.5 and 15 cm) on yield and yield components of onion (Allium cepa L.). was laid out according to randomized complete block design in factorial arrangement with three replications. Results revealed that the interaction effects of N rates and intra-row spacing showed highly significant (p