Growth and macronutrient accumulation in tomato cultivated in an organic system

ABSTRACT The aim of this study was to characterize the growth and nutrient absorption ‘Debora Victory’ tomato grown in organic system. treatments consisted nine sampling dates, at 2, 32, 46, 60, 77, 91, 109, 122 137 days after transplantation (DAT). In last sampling, plants reached an estimated accumulation dry fresh weight plant shoots 550 9,528 g/plant, respectively. At end cycle, distribution matter 73% fruits, 16% leaves 11% stem. yield total fruits 154.7 t/ha. decreasing order K>N>Ca>P>S>Mg, with values 22.6; 10.4; 5.0; 2.3; 2.1 1.6 respectively, corresponding 431; 198; 95; 44; 40 30 kg/ha K, N, Ca, P, S Mg, K>N>P>S>Mg>Ca, 16.6; 8.4; 1.7; 0.8; 0.7 0.2 which corresponded extraction 315; 153; 32; 16; 14 3 S, Mg greatest P K occurred vegetative organs (stem + leaves).