Objective of field experiments carried out in maize-soybean-winter wheat crop rotation was evaluation of different soybean genotypes on two management systems, intensive and extensive. Intensive management system consisted of ploughing at 30-32 cm, fertilization with 80 kg N and 130 P2O5 and K2O kg/ha, crop protection with oksasulfuron and if it was necessary with propakvizafop and bentazon. Extensive management system consisted of ploughing at 20-22 cm, fertilization with 40 kg N and 130 P2O5 and K2O kg/ha, crop protection with oksasulfuron. In each management system identical monofactorial experiments with 19 genotypes (vegetative group I) in five replications were set up. Soybean seed yield in intensive management system was 98 kg/ha higher than in extensive management system. In both management systems cultivar Tisa had the highest seed yield, and among next five genotypes ranged according to seed yield were slight different. Three genotypes with the lowest yield were the same in both management systems. Results showed superiority of genotypes with certain yield potential to influence of management systems in yield creation. Significant differences among gross margin of investigated genotypes at different management systems were determined. Financial result was higher at extensive management system (except two genotypes).

economy; genotype; gross margin; management system; soybean; yield

Published by University of Zagreb, Faculty of Agriculture, Zagreb, CROATIA
Sponsored by Ministry Science and Education of the Republic of Croatia