Production, mineral nutrition and physiological aspects of lettuce under foliar fertilization with Spirulina platensis
Journal Title: Revista Verde de Agroecologia e Desenvolvimento Sustentável - Year 2017, Vol 12, Issue 1
Abstract
The objective of this study was to evaluate the influence of concentrations of organic fertilizer based on Spirulina platensis on yield, growth, in N, P, K and sodium contents and on gaseous changes of lettuce cv. Elba in field conditions. Use the design of randomized blocks, with six treatments consisting of different concentrations of fertilizer (0; 1.5; 3.0; 4.5; 6.0 and 7.5%) with six replications. At the harvest point were evaluated the growth and production, nitrogen, phosphorus, potassium and sodium, as well as gas exchange plant with infrared gas meter (IRGA). The results showed that the fertilizer concentrations did not affect production, growth, levels of nutrients evaluated, and did not influence the gas exchange of plants.
Authors and Affiliations
Débora Samara Oliveira e Silva, Jackson Silva Nóbrega, Railene Hérica Carlos Rocha, Josinaldo Lopes Araújo, Wellinghton Alves Guedes, José Franciraldo de Lima
Keywords
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- EP ID EP251880
- DOI 10.18378/rvads.v12i1.4722
- Views 166
- Downloads 0
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