Published in Scientific Papers. Series A. Agronomy, Vol. LXV, Issue 2
Written by Angelina MUHOVA, Stefka STEFANOVA-DOBREVA
Triticale is mainly used as a source of feed and the tendency is to include in people's diet. Information concerning comparison of yields under biological and conventional agriculture is needed. The aim of the research is to evaluate the productivity of triticale varieties depending on the fertilization, under biological and conventional agriculture. Two by two-factorial trials were conducted during the period 2014-2017. The experiments were performed after predecessor sunflower on Pelic Vertisols. Three varieties of triticale were tested, certified organic fertilizer from red Californian worm on biological field and mineral fertilizers containing nitrogen and phosphorus on conventional field were applied. The results showed an increase between 31.3%-52.4% after organic fertilization and between 28.6%-55.4% after mineral fertilization. Concerning variety an increase between 15.8%-23.0% under biological system was established. Under conventional system, 83.0% lower compared to control and 6.9% more was established. A specific reaction of the varieties to the agricultural system was found. Тhe Respect variety achieved the highest productivity under biological system and the Boomerang variety under conventional system. The average grain yield under biological system was 32.6% lower. The effects of year, farming system, variety and fertilization on grain yields were confirmed.
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