The effects of chemical and organic fertilizer applications on forage yield and quality of smooth brome (bromus inermis l.) under irrigated and non-irrigated conditions

Abstract

The aim of this research is to examine the effects of chemical and organic fertilizer applications on the forage yield and quality of smooth brome. The research was conducted in two separate experiments under irrigated and non-irrigated conditions in a randomized complete blocks design with three replications. Ammonium sulphate was used as chemical fertilizer, manure and poultry manure as organic fertilizer and Vicia sativa L as green manure. Under irrigated and non-irrigated conditions, the impacts of different fertilizer applications on the smooth brome’s height of plant, crude protein rate, crude protein yield, green grass yield and dry matter yield were evaluated. According to the results of the research, while the average dry matter yield was obtained to be 3.94 t ha-1 under irrigated conditions, it was obtained as 1.70 t ha-1 under non-irrigated conditions. The peak values under irrigated conditions were obtained from chemical fertilizer application. However, under non-irrigated conditions the highest values were obtained from organic fertilizer applications. Consequently, considering the impacts of using organic fertilizers on the ecological properties of the soil in the long term, it was concluded that the yield difference between chemical fertilizer and organic fertilizer under irrigated conditions was at tolerable level.