N. Minev* Department of Agrochemistry and Soil Sciences, Faculty of Agronomy, Agricultural University – Plovdiv, 12 Mendeleev Str., 4000 Plovdiv, Bulgaria (Manuscript received 2 July 2020; accepted for publication 14 August 2020) Abstract. The aim of the study was to determine the eff

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

I. Iliev, G. Milev Abstract. The weed control is a basic problem in organic agriculture. Most often it leads by multiple mechanical treatments, which except significant weed destruction show certain positive as well as some negative influence on the crop. In this investigation the inf

І. Varlyakov Abstract. The review analyses the state and trends for development of organic farming and animal husbandry and organic animal production in particular. The theoretical and legal background – definitions, principles, standards, registers, regulations of organic production