Abstract
Abstract Bio-fertilizers are becoming more and more popular in many countries and for many cultures, but there are too few researches of their influence to crop yield concerning rice. Therefore we have assessed 2 different bio-preparations at the Aral Sea region during four agricultural seasons between 2016 and 2019. The experiments were held in fully irrigated conditions in the typical lowland rice environment. The article contains the results of the research in the use of complex liquid fertilizers and biological preparations. The purpose of the researches is the use of complex liquid fertilizers and biological preparations and the analysis of agro-ecological effect on rice growth in the conditions of the Aral Sea region. We have conducted field experimental studies to determine the agro-ecological efficiency of the use of complex liquid fertilizers and biological preparations and their influence on increasing the rice crop yield.