Mineral nutrition of vegetable crops: LXXVII. nutrients absortion of macro and micronutrients by a roquette crop

Abstract

Twenty, 27, 34 and 41-day old roquette (Eruca sativa) plants were collected from a Cultivada c.v. crop and separated into leaves and roots. The plant material was dried and analysed for, N, P, K, Ca , M, S, B, Cu, Fe, Mn and Zn by lab conventional methods . The plant dry weight was found to increase up to the time plants were 34 days old, then it became stabilized. The total content of the elements in 1,000 plants/ 10 m² at 34 days was 20 g N, 1.868 P, 22,1 g K, 7.56 g Ca, 1.77 g Mg, 1.99 g S, 17.7 mg B, 7.8 mg Cu, 475.6 mg Fe, 14.3 mg Mn and 37.7 mg Zn.