Effect of Nitrogen and Spacing in Growth, Yield and Quality of Celocia cristata

This study was carried out at the demonstration Farm of the Department of horticulture, College of Agricultural Studies during summer season. Experiment one: nitrogen (as urea)at level of 0,25 and 50kgN/fed fifteen days after transplanting of seedlings. Experiment two: manure added at the rate of 0,150 and 300kgN/fed during land preparation. The results revealed that, application of sources of nitrogen (urea or nitrogen) promoted growth of Celosia cristata .It gave the highest values of growth .addition(50kgN) of urea or 300kg/fed manure gave the best vegetative growth of Celosia cristata compared to 25kgN/fed of urea and 150kgs manure. High doses of both urea and manure delayed flowering in plant C.cristata. Moreover, flowers yield and quality, seed yield and quality were affected positively by addition of nitrogen. Increasing of plant spacing decreased plant height but increased number of branches/plant in the season .However, there were no significant effects on flower initiation of C. cristata. Maximum flowers yield and quality (number of flowers /plant or inflorescences, flower diameter and flower age) of celosia were recorded at spacing of 30and 40cm.Maximum number of seeds germination rate and uniformity of Celosia cristata were recorded at closer spacing (20,30cm).