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
Related Articles
- EP ID EP251880
- DOI 10.18378/rvads.v12i1.4722
- Views 144
- Downloads 0
Upland cotton fibers under water deficit
The Brazilian semi-arid region is characterized by low water availability due to persistent periods of drought, with which there is a need for better use of water in the irrigation of crops. So that, the objective of thi...
Physicochemical of acerola varieties in two stages of maturation
Area with acerola plantations for commercial purposes have been increasing with the use of acerola by food industries and pharmaceutical companies. The objective of the present work was to characterize physically and che...
Biomass of Eichhornia crassipes and Lemna minuta for animal feed
The objective of this study was to analyze the centesimal composition of Eichhornia crassipes and Lemna minuta, as well as to evaluate their yields of carbohydrate extraction, aiming the application of their biomasses to...
Organic fertilizers on the development of varieties cactus forage
The cactus forage cultivated in the Brazilian semiarid region is a crop of extreme importance for the local population, being used as alternative sources for feeding the animals in critical periods of drought. However, f...
Spatial dynamics of the physical and chemical parameters of water in fish farms
Brazil presents, characteristics that can make of its territory, the world's great barn for the production of cultivated fish organisms. However, for this it is fundamental to study the physical and chemical parameters o...