The influence of interrow spacing and variety on soybean seed yield and quality

Abstract

The aim of the study was to analyze the influence of interrow spacing (25, 50 and 70 cm) on seed yield and quality of three soybean varietes of different vegetation length (Dukat- O group, Balkan - I group, Vojvodjanka - II group of maturation). Different interrow spacing contributed to various shapes of the vegetation area using the same plant population density. During the two-year trial, on average with regard to the cultivars tested the highest seed yield (5.312 kg/ha) was obtained sowing at a 25 cm interrow spacing. This was by approx. 40% greater in comparison with the 50 and 70 cm interrow spacing sowing variants (3.798 and 3.807 kg/ha). Considering interrow spacing, on average, the highest seed yield was obtained by cv. Dukat (4.450 kg/ha). Cvs. Vojvodjanka and Balkan yields were by 1.8 and 8.0% lower. Protein content was not substantially effected by the shape of the vegetation area averaging 31%. This was also the case with oil content in the seed (on average 20.8%).

U radu je proučavan uticaj veličine međurednog rastojanja (25, 50 i 70 cm) na prinos i kvalitet zrna tri perspektivne sorte soje različite dužine vegetacionog perioda (Dukat- O grupa, Balkan- I grupa, Vojvođanka- II grupa zrenja). Različito međuredno rastojanje je omogućilo i različit oblik vegetacionog prostora pri istoj gustini useva.U proseku za sorte, u dvogodišnjem periodu, najveći prinos semena (5.312 kg/ha) ostvaren je pri setvi na 25 cm međurednog rastojanja.Ova vrednost je veća za oko 40% u odnosu na prinos iz varijanti setve od 50 i 70 cm (3.798 i 3.807 kg/ha). U proseku za međuredna rastojanja, najveći prinos semena dala je sorta Dukat (4.450 kg/ha), dok su sorte Vojvođanka i Balkan dale za 1,8 i 8,0% niži prinos. Sadržaj proteina se nije značajnije razlikovao zavisno od oblika vegetacionog prostora, a njegova prosečna vrednost je iznosila 31%. Slično stanje je zabeleženo i u pogledu sadržaja ulja u semenu (prosek 20,8%).