Utjecaj primjene pepela na prinos biomase divljeg prosa

U ovome radu ukratko je opisana povijest i porijeklo divljeg prosa kao nativne biljke američkih ravnica i visoravni. Osim toga opisana je povijest divljeg prosa kao kultivirane biljke, te njena kratka povijest kao kulture koja se koristi u energetske svrhe. Ukratko je opisana agrotehnika potrebna za uspješan uzgoj biomase divljeg prosa, kao i zahtjevi za klimatskim prilikama. Cilj rada bio je utvrditi utjecaj primjene različitih doza pepela drvene biomase (0; 1,5; 3,0 i 4,5 t/ha) i roka košnje (jesen, proljeće) na prinos i visinu biljke divljeg prosa. Rok košnje pokazao je bitan utjecaj na prinos biomase (jesen 38,17 vs. proljeće 21,87 t ST/ha), dok primjena pepela nije imala značajan utjecaj na prinos biomase, kao ni visinu biljke (prosječno 2,61 m).In this paper, history and origins of switchgrass is briefly described as a native plant to American plains. Furthermore, history of swithgrass as a cultivated crop is also described and its short history as a crop used for energy purposes. Agricultural practises needed for successfull cultivation of switchgrass biomass is described, as well as demands for climatic conditions The goal of this study is to determine the influence of the application of different doses of wooden ash (0; 1,5; 3,0 i 4,5 t/ha) and the date of harwesting (autumn,spring) on the yield and plant height of switchgrass. The choice of mowing date showed a significant impact on the biomass yield (autumn 38,17 vs. spring 21,87 tonnes of dry matter per hectare), while the application of ash did not have a significant impact on the biomass yield, nor the height of the plant (average 2,61 m)