Chemical properties of sandy soil and yield of Brassica oleracea var. capitata L. amended with winery waste compost and NPK fertilizer

Abstract

Winery waste compost (WWC) and NPK fertilizer were compared on the growth and yield of cabbage (Brassica oleracea var. capitata L.) in a sandy soil at Western Cape Region, South Africa. The experimental design was set up in a Randomized Complete Block Design (RCBD) with four treatments replicated four times. At every two weeks interval, there was a progressive significant (p<0.05) yield increase of cabbage irrespective of the fertilizer type. An analysis of the interaction between the treatment levels and harvest time revealed that NPK and 400% WWC significantly (p<0.05) perform better at eight weeks after field transplant. The amounts of nutrients taken by the plant and chlorophyll content of cabbage were affected by WWC and NPK. The results discussed the potential of WWC in the production of cabbage in the region.