M. Gerdzhikova* Department of Plant Growing, Faculty of Agriculture, Trakia University, 6000 Stara Zagora, Bulgaria (Manuscript received 12 December 2016; accepted for publication 20 February 2017) Abstract. During the period 2008-2011 the influence of the predecessors wintering peas,

D. Atanasova*, V. Maneva, T. Nedelcheva Institute of Agriculture, 8400 Karnobat, Bulgaria (Manuscript received 31 July 2015; accepted for publication 27 November 2015) Abstract. On a certified organic field a trial of the hull-less oat variety Mina was conducted, sown after peas-sunfl

Z. Uhr1*, E. Vasileva2 1Institute of Plant Genetic Resources, 2 Druzhba, 4122 Sadovo, Bulgaria 2University of Agribusiness and Rural Development, 78 Dunav, 4000 Plovdiv, Bulgaria Abstract. As a consequence of a long-year comparative study of quality, productivity and physiological cha