The Effect of Nitrogen and Phosphorus Fertilization on Macro and Micro Element Content of Pasture Grass

Abstract

This study was conducted in Bingöl province in 2017 in order to determine the effect of nitrogen and phosphorus doses on the macro and micro element content of pasture grass. Four different nitrogen doses (0, 5, 10, 15 kg da-1), four different phosphorus doses (0, 4, 8, 12 kg da-1) and combinations of these doses were used in the study. The effects of the doses and combinations used on the macro (calcium (Ca), sodium (Na), magnesium (Mg) and potassium (K)) and micro element (iron (Fe), copper (Cu), zinc (Zn) and manganese (Mn)) contents of pasture grass were investigated. The ICP-MS device (Inductively Coupled Plasma-Mass Spectroscopy) was used to determine the elemental contents of pasture grass, and the study was carried out in randomized blocks with three replications in accordance with a two-factor factorial experiment design. In the study, it was determined that the effect of increasing nitrogen and phosphorus doses on the macro and micro element content of pasture grass was statistically significant. It was observed that the Ca, Na, Mg, K, Fe and Zn contents of pasture grass decreased systematically with the increase of nitrogen and phosphorus doses. It was determined that the Cu and Mn contents increased with the increase of the nitrogen dose, but the increase in the phosphorus dose did not have any effect on the Cu and Mn contents of the pasture grass.