Research on the economic efficiency of the agricultural ecosystem under agro-technical measures to crops of corn

Abstract

Against the background of global warming, increasing pollution levels and requirements for limiting the use of fossil fuels, demand for biomass has increased. For testing the energy efficiency of the agro ecosystem in the Experimental Farm of the Moara Domneasca, Găneasa, Ilfov County, a bifactorial experience has been achieved in which Factor A = Nitrogen Fertilization Level (N) and Factor B = Irrigation Level. Increasing the level of nitrogen fertilization (N) on the same phosphorus soil conditionshas led to statistical gains of both the main production of grain production, thus maintaining land use for agricultural production, as well as secondary production that has potential for use as biofuel. The increase in the level of irrigation (a2, a3) led to a very significant increase of the grain yields (kg / ha) and of the biomass production. Analyzing the economic efficiency of the ecosystem under the influence of the technological measures, it is noted the significant increase of all economic indicators compared to unfertilized (b1) or non-irrigated (a1) control, increases are proportional to the applied nitrogen dose and watering standard.