Nutrient uptake studies on broccoli (Brassica oleracea L. var. italica) grown on peat (Kajian pengambilan nutrien oleh brokoli (Brassica oleracea L. var. italica) di tanah gambut)

Nutrient uptakes of N, P, K ,Ca and Mg at 96, 19, 132, 44 and 23 kg/ha respectively were obtained. Nutrient uptake ratio obtained was 4:1:6:2:1 for N:P:K:Ca:Mg. Only 27% N, 22% P, 16% K, 6% Ca and 10% Mg of the total nutrient uptake were removed in the edible head for an economic yield of 5.6 t/ ha. The rest were found in the non-edible leaves, stems and roots. Micronutrient uptake was less than 0.5 kg/ha. Data presented can be used as a guide for formulating fertilizer needs of broccoli grown on peat.