Mineral nutrition of vegetable crops: LIV - nutrient uptake of cucumber (Cucumis sativus L.) var. Aodai under field conditions

Abstract

A commercial cucumber plantation was set in Piracicaba (SL: 22º41'31" and LW: 47º38'01"), State of São Paulo, Brazil, in a soil classified as "Terra Roxa Estruturada (Alfissol) séries Luiz de Queiroz, in order to study the accumulation of nutrients by the plant and its parts. Plants (4 replications) with 12, 24, 36, 48, 60, 72, and 84 days old from emergence were collected and dovoded into stems, leaves of stems, leaves of the shoots, masculine flowers, feminine flowers, and fruits. The material was dried at 80°C and analysed for macro and micronutrients. The results indicated that at 84 days from emergence the serial plant parts have accumulated: 10.8 g-K; 6.1 g-N; 5.6 g-Ca; 1.5 g-Mg; 0.69 g -P; 0.44 g-S; 37-5 g-Fe; 25.0- g-Mn; 10.7 g-Zn; 10.3 g-B; and 4.5 g-Cu.