Effect of Organic and Inorganic Fertilization on Microbial Biomass Carbon and Co2 Evolution on Wheat Crop Under Vertisol Nayak Tripti*, Tiwari Alok, Bajpai R.K., Bachkaiya Vinay Department of Soil Science and Agricultural Chemistry, Indira Gandhi Krishi Vishwa Vidyalaya, Raipur, Chattisgarh *Email: nayaktripti66@gmail.com
Online published on 2 January, 2017. Abstract The objectives of this study were to assess the effect of organic and inorganic fertilization on soil microbial biomass carbon and CO2 evolutionin rice-wheat cropping system under Vertisol in Rabi (Wheat) during 2014–15 at LTFE project, IGKV, Raipur. Thetreatmentcombinations for crop were T1(Control), T2 (50%NPK), T3 (100% NPK), T4 (150% NPK), T5 (100%NPK+Zn), T6 (100% NP), T7(100%N), T8 (100% NPK+ FYM), T9(50% NPK+ BGA) and T10(50%NPK+GM) four replications of each treatment. Farmyard manure and green manure is applied at the treatment of T8 and T10. The result showed that the INM using FYM also exerted a profoundeffect on microbial biomass carbon (251.09 μg g−1 soil) and CO2 evolution (46.13 mg 100 g−1 soil). The highest microbial activity were found in 100% NPK+FYM and lowest in Control plot. In Similarly, green manuring and crop residue recycling using in conjunction with fertilizers recorded significant improvement in soil biological properties over fertilizers alone. Our results thus suggest that the microbiological attributes proved to be highly responsive and sensitive to the beneficial influence of green manure and FYM in wheat crop and can be used as indicator of soil quality. Manures and fertilizers applied in the long term could greatly affect biological properties, which are considered sensitive indicators of ecosystem responses and soil health. Top Keywords CO2 evolution, Soil microbial biomass carbon, organic and inorganic fertilization. Top |