SciELO - Scientific Electronic Library Online

vol.22 número1Multiplicación de semillas de soja en bajas densidades de siembraModelo dinámico de rodal para Eucalyptus globulus (L.) en Uruguay índice de autoresíndice de assuntospesquisa de artigos
Home Pagelista alfabética de periódicos  

Serviços Personalizados



Links relacionados


Agrociencia (Uruguay)

versão impressa ISSN 1510-0839versão On-line ISSN 2301-1548


MENESES, Natalia Barreto et al. Accumulation of Dry Matter and Nutrients by Supersweet Corn. Agrociencia Uruguay [online]. 2018, vol.22, n.1, pp.53-62. ISSN 1510-0839.

Brazil has a great potential for the production of supersweet corn. However, this crop is lacking in technical information that assists in the management of fertilization and mineral nutrition aiming at a high crop yield, a high industrial performance, and a low environmental impact. This study aimed to quantify the growth and accumulation of nutrients by supersweet corn ‘GSS 41243’, in Guaíra, Brazil, from April to August 2013. Plant samples were collected 20 to 100 days after emergence, with 10-days intervals. At the end of the cycle, the crop accumulated 21.5 t ha-1 of dry matter, 39 % of which accumulated in the ears (8.4 t ha-1). The amount of nutrients accumulated by the crop were 306.8, 46.2, 406.3, 39.0, 33.4 and 23.1 kg ha-1 of N, P, K, Ca, Mg and S, respectively, and 213.6, 118.4, 3,360.0, 784.0 and 684.0 g ha-1 of B, Cu, Fe, Mn, and Zn, respectively. In relation to the total accumulated, the nutrient exports in the ears corresponded, in kg ha-1, to 103,0 (N); 19.0 (P); 104.5 (K); 3.4 (Ca); 9.90 (Mg); 7.3 (S) and, in g ha-1, at 64.0 (B); 33.6 (Cu); 632 (Fe); 184 (Mn) and 320 (Zn).

Palavras-chave : Zea mays convar. saccharata var. rugose; nutrients uptake; phenology.

        · resumo em Espanhol     · texto em Inglês     · Inglês ( pdf )