The effects of NPK fertilization on hay production and some yield components of crested wheatgrass (Agropyron cristatum) in the dry steppe zone of Eastern Kazakhstan

Authors : Gulim O. KAMZİNA, Saule M. SEİLGAZİNA, Saule E. SULEİMENOVA, Araily A. ZAKİEVA, Aigul ZHAMANGARAYEVA

Pages : 337-344

Doi:10.18393/ejss.1162364

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Publication Date : 2022-10-01

Article Type : Research Paper

Abstract :A three-year-long field experiment was conducted in a continuous grazing system with a variable stocking rate to evaluate effects of increasing NPK fertilization rates insert ignore into journalissuearticles values(Control- N0P0K0, N60P40K30, and N80P50K40); in crested wheatgrass insert ignore into journalissuearticles values(Agropyron cristatum); on hay production, some yield components and crude protein concentration in the dry steppe zone of Eastern Kazakhstan. At harvesting, hay production insert ignore into journalissuearticles values(fresh and dry weight);, seeding rate insert ignore into journalissuearticles values(SER);, shrub diameter insert ignore into journalissuearticles values(SHD);, height of generative shoots insert ignore into journalissuearticles values(HGS);, length of root leaves insert ignore into journalissuearticles values(LRL);, weight per bush insert ignore into journalissuearticles values(WEB);, percentage of leaves and vegetative shoots insert ignore into journalissuearticles values(LVS); and crude protein concentration of crested wheatgrass insert ignore into journalissuearticles values(Agropyron cristatum); were determined. NPK fertilizer treatments increased hay production, SER, SHD, HGS, LRL, WEB, LVS and crude protein concentration. The results showed that crested wheatgrass at the N80P50K40 treatments achieved a higher hay production and some yield components of crested wheatgrass insert ignore into journalissuearticles values(Agropyron cristatum); in the dry steppe zone of Eastern Kazakhstan than other NPK treatment and control.
Keywords : Crested wheatgrass, fertilization, hay production, crude protein concentration