Effect of Nitrogen Fertilization on N2o Emission in Different Soil Reactions and Grown Grass Species

Abstract

This research was carried out in order to determine the effect of fertilization, or lack of it, on N 2 O emission in different conditions of soil reaction and grown grass species. The pot experiment was conducted in a randomized block design with three replications in -2016. Four grass species were grown in mineral soil under mineral or organic fertilizing (Ʃ = 150 N kg), or lack of fertilization and different soil reaction. The effect of N-fertilization dose was determined, too. The difference of groundcover density of tested grass species was assessed. The results indicated that N 2 O emission was reduced with subsequent doses by 13, 15 and 18% compared with the initial values. The application of mineral fertilization caused a higher increase of the grass biomass than the use of organic fertilizerwithout any marked effect of soil reaction. The N 2 O emission was influenced by the type and dose of nitrogen fertilization, the reaction of mineral soil and the biomass of the cultivated grasses. With an increase in biomass of grasses, N 2 O emission was found to decrease, generally at neutral soil reaction. The highest groundcover density was found for Festuca pratensis and Lolium perenne, which translated into increased nitrogen uptake and, consequently, reduced N 2 O emissions. It was determined as the optimum technique of grassland management for the reduction of N 2 O emission.

Journal of Water and Land Development

“…The pot experiment was conducted in a greenhouse on Faculty of Environmental Management and Agriculture of West Pomeranian University of Technology in Szczecin, Poland, according to the methodology presented by GAŁCZYŃSKA et al [2018].…”

3,4-Dimethylpyrazole Phosphate (DMPP) Reduces N2O Emissions from a Tilled Grassland in the Bogotá Savanna

“…Regarding grassland species, perennial ryegrass is one of the main forage grasses sown in the world due to its rapid recovery after grazing, its forage quality, its adaptability to different soil conditions and its productivity over long growing seasons [11,12]. Forage quality is based on parameters such as nutritional composition, crude protein (CP) content and dry matter digestibility [11].…”