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The pepper has a relatively large share in the general structure of the vegetable production in Bulgaria. The objective of this research was to investigate the influence of biofertiliser Emosan (HemoZym NK, Hemozym Bio N5) in combination with biofertilisers Lumbrical and Boneprot, as well as the influence of certain agrometeorological conditions on the phenological growth of pepper cv. ‘Sofiiska Kapiya’. This experiment was carried out in 2009 – 2011 on the experimental fields of the Agroecological Centre at the Agricultural University Plovdiv (Bulgaria). The pepper was grown using existing technology for mid-early field production, according to the principles of organic agriculture. The agroclimatic characteristics were taken on the basis of data of twenty-four-hour performance of meteorological factors. In the three years of the experiment the temperature conditions during the period of active vegetation of the pepper (June - July - August) were above the average, which was in conjunction with the global trends. The application of biofertiliser Emosan, in combination with basic fertilization with biofertilisers Boneprot and Lumbrical and under the impact of suitable agrometeorological conditions, had a positive impact on the pepper plants. Pepper plants showed earlier entry into the main phenophases under field conditions of organic farming.