Impact of sewage water irrigation on soil microbial diversity and Cauliflower productivity in Rajnandgaon District (C.G.)

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Date
2020
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Indira Gandhi Krishi Vishwavidyalaya, Raipur (C.G.)
Abstract
A field experiment-based study was conducted entitled “Impact of sewage water irrigation on soil microbial diversity and Cauliflower productivity in Rajnandgaon District (C.G.)” and all observation analyzed at Department of Soil Science and Agricultural Chemistry, Pt. Shiv Kumar Shastry College of Agriculture and Research Station, Rajnandgaon and Department of Agricultural Microbiology, Indira Gandhi Krishi Vishwavidyalaya, Raipur during the year 2019-20. The sewage and groundwater quality was tested and the result revealed that the groundwater is contaminated through leaching of sewage water irrigation. The soil samples were taken before and after sewage water irrigation from the cauliflower field. The impact of sewage water irrigation on physical, chemical and biological properties of soil was compared between the before and after sewage water irrigation. The pH, Electrical Conductivity (EC), Organic Carbon, available Nitrogen, Phosphorus, Potassium, Calcium, Magnesium, Zinc, Iron, Copper, Manganese and microbial activity i.e. soil microbial biomass carbon, basal soil respiration, total viable count of bacteria, E. coli population, Pseudomonas species, and Azotobacter is significantly increased after sewage water irrigation when compared with the before sewage water irrigation. However, the bulk density and Rhizobium sp. of the soil flooded with sewage water was decreased as compared to the bulk density and Rhizobium sp. of the soil before sewage water irrigation. The cauliflower yield was significantly increased when sewage water flooded field compared with the tube well water flooded field. The E coli. Contamination was higher in sewage water and groundwater that can cause health risk for the nearby communities, farmers and consumer of the farm products. Therefore, it may be concluded that in the scarcity of irrigation water, sewage and municipal wastewater can be used for irrigation after periodic monitoring of soil fertility and quality parameters of sewage and municipal wastewater or sewage water mixed with groundwater or alternate way of irrigation.
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Impact of sewage water irrigation on soil microbial diversity and Cauliflower productivity in Rajnandgaon District (C.G.)
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