Uticaj međurednog razmaka na morfološke osobine i prinos krmnog sirka i sudanske trave

Abstract

Krmni sirak i sudanska trava predstavljaju značajnu ugljenohidratnu komponentu u ishrani preživara. Za postizanje visokih prinosa zelene krme važno je primeniti kvalitetnu agrotehniku, pre svega izvršiti setvu na odgovarajući međuredni razmak. Cilj rada je da se odredi uticaj međurednog razmaka na morfološke osobine i prinos sorti krmnog sirka i sudanske trave. Ispitivane morfološke osobine nisu se značajno razlikovale pod uticajem međurednog razmaka, dok je na prinos zelene krme i suve materije razmak veoma značajno uticao. Na međurednom razmaku od 12,5 cm sorte su ostvarile prosečno najveći prinos zelene krme (70,1 t ha-1) i prinos suve materije (21,0 t ha-1 ). Za proizvodnju ovih useva preporučuje se uskoredna setva.

Forage sorghum and Sudan grass represent a significant carbohydrate component in ruminant nutrition. In order to achieve high yield of green forage, it is important to apply quality agro-technology, mainly to seed at the appropriate row spacing. The aim of the paper is to determine the effect of row spacing on the morphological traits and yield of forage sorghum and Sudan grass varieties. Tested morphological traits did not differ significantly due to the effect of the row spacing, while green forage and dry matter yield were significantly different. At row spacing of 12.5 cm, the average green forage and dry matter yields were the highest (70.1 t ha-1 and 21.0 t ha-1). Seeding at the narrow rows is recommended for the production of these crops.