MARCRO NUTRIENT REQUIREMENT OF CHINESE CABBAGE (Brassicap ekinensis) AND CAULIFLOWER (Brassica oleracea var. botrytis)

VIMALA PURUSHOTHAMAN, K.T. JOSEPH and S. THAMBOO

SUMMARY

Nutrient contents and removal by chinese cabbage and cauliflower were investigated. Chinese cabbage removed 88, 16, 134, 45 and 7 kg/ha of N, P, K, Ca and Mg respectively while corresponding values for cauliflower were 131, 24, 167,53 and 7. About 50% of the nutrients were distributed in the nonedible outer leaves. Positive correlations were obtained between nutrient uptake and yields. The regression lines presented could be used to predict nutrient removals (and hence amounts to be apptied) at various levels of production. About 500% of the nutrients absorbed, occurred in the last 3 - 4 weeks before hanvest. Result so obtained are discussedin relation to fertiliser application programmes.

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