Nitrogen efficiency in hydroponic chicory

Made available in DSpace on 2018-12-11T17:15:32Z (GMT). No. of bitstreams: 0 Previous issue date: 2017-11-08 An experiment was conducted to develop a model of vegetative growth based on the nitrate concentrations in nutrient solutions using the nutrient film technique and to determine the best cultivar for each concentration. The chicory cultivars (“Pão de Açúcar,” “Folha Larga,” “Precoce de Trieste” and “Catalonha”) and the subplots corresponded to different nitrate concentrations (6.68, 10.0, 13.32 and 16.64 mmol L−1). There was an interaction between the evaluated factors, such that there was no similarity in the response of the chicory cultivars to the N concentrations in the nutrient solution. The most productive chicory cultivar was “Pão de Açúcar,” which exhibited 10.5% higher productivity than the average, and the least productive was “Folha Larga,” which showed approximately 8.5% lower productivity than the average. Departamento de Produção Vegetal Faculdade de Ciências Agrárias e Veterinárias Campus de Jaboticabal UNESP–Universidade Estadual Paulista Departamento de Agronomía Universidad de Almería Departamento de Produção Vegetal Faculdade de Ciências Agrárias e Veterinárias Campus de Jaboticabal UNESP–Universidade Estadual Paulista