Experimental studies on the effectiveness of the use of new organo-mineral amendments obtained on the basis of biocompost to restore fertility and increase the productivity of degraded alluvial meadow medium loamy and sod-podzolic sandy loamy soils of reclaimed agricultural lands were carried out by the authors of the paper as part of the implementation of the state assignment of the Ministry of Science and Higher Education of the Russian Federation “To develop a scientific and methodological approach and new agro-meliorative methods for restoring the fertility of degraded reclaimed lands, reclaiming contaminated soils and disturbed pasture areas in the European part of Russia”. The studies included a series of long-term greenhouse and field experiments performed on the reclaimed lands of JSC “Moskovskoye” and the stationary site of the Meshchersky branch of the A.N. Kostyakov All-Russian Research Institute of Hydraulic Engineering and Land Reclamation, which resulted in new ways of restoring the fertility of degraded reclaimed agricultural land and low-productivity lands involved in agricultural circulation using multifunctional amendments for the conditions of the southern part of the Non-Black Earth Zone of Russia. At the end of the experimental studies, the authors developed a database, and then an information and reference Web-system that allows entering, storing, finding and analyzing information on ways to increase the soil fertility of degraded reclaimed agricultural land and low-productivity lands involved in agricultural circulation using biocompost based on the processing of organic waste. This software allows making scientifically based and timely decisions to restore fertility and increase soil productivity.