N-Ixation With The Use of Baktoleg Preparation Under Different Ecological Conditions

Abstract In Hungary, a need has arisen for producing and applying rhizobial inoculant effective and virulent to leguminous plants. Since 1984 the conditions to produce Baktoleg, a peat and Rhizobium containing inoculum, have been created in pilot plant and in large scale form - by the Department of Soil Biology of the Research Institute for Soil Science and Agricultural Chemistry of the HAS in co-operation with the Lucerne Production System in Fuzesgyarmat. Rhizobium strains (lucerne, horse-bean, pea, soybean) are collected from different regions of the country, tested in plant trials and an inoculum made from the mixture of the most effective ones. The official quality control is conducted by the Centre of Plant Protection and Agricultrual Chemistry of the Ministry of Agriculture and Food, based on formulated standards. This branch is responsible for the sampling of plant species, for production units and for carrying out the necessary microbiological, physicochemical and pot trials. To judge the effectiveness of Baktoleg, pot trials and field trials were also set up. Compared to the noninoculated plants, significantly higher average yields were obtained by the use of Baktoleg.