Effect of microbial fertilizer on soybean yield in organic and conventional production

Abstract

Two-year survey was conducted according to the principles of organic and conventional dryland cropping technologies. Experiment was placed in Backa Topola, on calcareous chernozem with wheat as preceding crop. In ecological production basic soil fertilization was performed with 15 t∙ha-1 cowshed manure, and in conventional production as pre-sowing treatment was applied 100 kg N∙ha-1. In both years were similar weather conditions. Examination factors were production ways and application of microbial fertilizer. Microbial fertilizer was in liquid state and it contained various types of microorganisms. Data were processed by twofactorial split-plot experiment variance analysis method, and differences between treatments were analyzed by LSD-test. Correlation analysis was conducted. The aim of this work was to determine yield of organic and conventional cropping technologies and correlational dependency between surveyed characteristics. The average yield was statistically very significantly higher (p