Lâminas de irrigação e doses de nitrogênio em roseiras cultivadas com técnicas de produção integrada

Abstract

Few studies involving amount of water irrigation and nitrogen demonstrates lack of information about the optimal application level of such inputs in the culture of the rose. Furthermore, the application of the optimum amount of water and nitrogen is related to the use of good agricultural practices, which are justified with the economy of these inputs. This work had the aim to evaluate the effect of irrigation and nitrogen on the yield and biometric quality of rose stems. The experiment was conducted in a greenhouse located at São João Del Rei, MG. Was used a randomized block design with split plots which the plots being defined by four percentage levels of water replacements on soil (40; 70; 100 and 130%) and the subplots defined by four nitrogen fertilizer levels (40; 70; 100 and 130%), with four replications. The quality parameters evaluated of the flowers are influenced by increasing water replacement. Higher yield is obtained with replacement of 100% soil moisture and nitrogen greater than or equal to 100%. Cultivation of roses with techniques of integrated production is indicated.