Productivity of cabbage (Brassica oleracea L.) as affected by organic manure and varieties grown in Jos Plateau State. Nigeria

The experiment aimed to evaluate the effect of organic manure and variety on the growth and yield of cabbage (Brassica oleracea L.) grown in Jos, Plateau State, Nigeria. The experiment is laid in a randomized complete block design with three replications. The treatments used are organic manure sources (Poultry dropping, Cow dung, goat manure, dung site, and control), a varieties used where (Copenhagen and Gloria) and the spacing of 50cm by 50cm was adopted for the experiment. During the investigation, some physiological variables, such as growth, plant height and the number of leaves were measured. Other characteristics like dry weight, plant girth, root length, head diameter, head length and overall yield were also recorded. The results of the investigation revealed that cabbage (Brassica oleracea L.) generally responded to nutrient sources. All the parameter studies have significantly (P ≤ 0.05) responded to the nutrient source with poultry dropping been superior in both growth and yield-related character such, as plant height (10.00), the number of leaves(20.11), dry weight (10.17), girth weight (48.22), root length (8.61), head diameter (15.40), head length (28.71) and yield (30.10). On verities Gloria out performed Copenhagen in both growth, yield and yield related characters such as plant height (9.45), the number of leaves(20.91), dry weight (10.92), girth weight (42.27), root length (10.23), head diameter (14.91), head length (31.71) and yield (32.22). Based on the results obtained it can be suggested that the use of poultry dropping which is better in both growth and yield characteristics will lead to optimum yield in cabbage cultivation in the study areas. Keywords: Cabbage, Organic nutrient and Variety