THE EFFECT OF GROWING REGIONS, MICROBIOLOGICAL FERTILIZERSAND SOIL ADDITIVES ON PRODUCTIVITY OF BUCKWHEAT(FAGOPYRUM ESCULENTUM MOENCH)

This study was aimed at investigating the productivity of buckwheat takinginto account growing regions, especially altitude, since this species does not havedemanding soil requirements.The experiments were conducted during 2009 and 2010 in two localities:Valjevo (the village of Jasenica at 300 m altitude – 2009 and the village of Jovanjaat 160 m altitude – 2010), and Nova Varos (the village of Radijevići at 1,065 maltitude). Soil of the experimental plots at both localities was characterized byacidic chemical reactions, with 3–5% of humus. In addition, the soil was rich inpotassium, but poor in phosphorus. Within the objective test, with four replications,microbiological fertilizers Bactofil and Slavol were applied just before planting,alone or in combination with soil additives (hydrogel and zeolite). Half of each plotwas fertilized foliarly, by the application of microbiological fertilizer Slavol usingthe concentrations of 50 ml per 10 liters of water. As compared with the control (nofertilizer application), in all variants of fertilization with a top dressing, increasedgrain yields were obtained. Significantly higher grain yields of buckwheat wereobtained in the first locality, especially in the variant of fertilization with thecombined use of Slavol and soil conditioner hydrogel.