Environmental conditions and crop density as the limiting factors of forage maize production

Abstract

In rain-fed cropping, defining the best combination of practices could achieve high forage yield and silage quality. The aim of this study was to compare energetic quality of produced silage with productive characteristics of forage maize cultivated on alluvium and hydromorphous black soil in rain-fed conditions at four plant densities (68-74,000 plants ha-1) during the period 2005-2010. Yield and energy parameters were increased to some extent at higher crop densities indicating that higher densities (74,000 plants ha-1) were potentially better for high forage and DM yields, while lower densities (70,000 plants ha-1) were better for the increase of energy parameters of produced silage.

U uslovima prirodnog vodnog režima, definisanje adekvatne kombinacije mera gajenja može doprineti povećanju prinosa i kvaliteta silaže. Cilj eksperimenta je bio da se uporede energetski kvalitet silaže sa produktivnim osobinama silažnog kukuruza gajenog na aluvijumu i ritskoj crnici u uslovima prirodnog vodnog režima, pri četiri gustine useva (68-74.000 biljaka ha-1) tokom 2005-2010. godine. Prinos i energetski parametri su povećani u određenom stepenu pri većoj gustini gajenja, ukazujući da su veće gustine (74.000 biljaka ha-1) potencijalno bolje za povećanje prinosa biomase i suve materije, dok su manje gustine (70.000 biljaka ha-1) bolje za povećanje energetskih parametara proizvedene silaže.