RELATIVE IMPACT OF DIFFERENT FERTILIZER TREATMENTS UPON PHYSICO-CHEMICAL AND MYCOFLORAL DIVERSITY IN AGRICULTURAL SOIL OF WHEAT FIELD IN HARIDWAR, UTTARAKHAND

Abstract

The present study was undertaken to investigate the effect of different fertilizer treatments on the physico-chemical and mycofloral proportion in agricultural field of wheat in Haridwar during 2015-2017. Three different plots were selected for the present experiment. A total of 21 species of 14 genera were isolated from the agricultural fields of different treatments from which 9 species were observed from control plot (T1), 12 species were isolated from chemically amended plot (T2) and the highest fungal diversity with 16 species were recovered from (T3) plot which was nourished with combined use of organic and inorganic fertilizer. Aspergillus niger was dominant species in T1plot while Fusarium graminearum showed its dominancy in T2 plot which is considered as pathogenic fungi for wheat plant. Trichoderma harzianum was the most dominant species in T3 plot. Some other beneficial fungi like Trichodema hamatum, Aspergillus flavus, Aspergillus niger showed positive correlation with some soil physico-chemical properties like Temperature, OC, N, P and K in this plot. Combined use of FYM and NPK resulted in significant increase of OC, N, P and K in T3plot while reduction of pH, N, P and K were observed in T2 plot where inorganic fertilizers were applied alone in the farmer field.The highest crop yield were recovered from T3 plot. Hence, our findings gave an idea that balanced and combined use of inorganic and organic fertilizer may enhance the physico-chemical and mycofloral diversity in agricultural soil and improve soil fertility.