Nutritional evaluation of banana in function of different doses of potassium fertilization

• Published in: Revista brasileira de agricultura irrigada Vol. 6; no. 2; pp. 89 - 96
• Main Authors: Barroso, Andréia de Araújo Freitas, Viana, Thales Vinícius de Araújo, Marinho, Albanise Barbosa, Santos, Luana Maria de Lima, Barroso, Carlos Robério de Oliveira, Filho, Raimundo Rodrigues Gomes
• Format: Journal Article
• Language: English
• Published: Fortaleza Instituto de Pesquisa e Inovação na Agricultura Irrigada - INOVAGRI 01.01.2012
• Subjects: foliar analysis; macronutrients; Musa spp
• ISSN: 1982-7679; 1982-7679
• DOI: 10.7127/RBAI.V6N200102

Considering the lack of information about blades and fertilizer doses there is a need for greater investment in studies to provide adequate water management and greater efficiency by application of nutrients. This study aimed to evaluate the concentrations of N, P and K in the leaves of banana cv. Pacovan Apodi under different levels of potassium in the soil and climatic conditions of the Chapada do Apodi-CE. The experiment was conducted in the experimental area of agribusiness FRUTACOR (05°06'S, 37º52'W, 151 m) in the period from june/08 to july/07. The potassium levels were: 0, 60, 140 and 200% recommended by soil analysis. The crop was irrigated through a drip irrigation system, consisting of five emitters per plant, with nominal flow of 2.3 L h-1 and P.S. 20 m.w.c. Through the software “SAEG 9.0-UFV” the data were subjected to analysis of variance and then when significant by F test at 5% probability, the regression analysis. The doses of potassium significantly influenced (p <0.05) in the potassium content in leaves and N and P levels were not affected by treatments.