Pesticides use and its Effect on Soil Bacteria and Fungal Populations, Microbial Biomass Carbon and Enzymatic Activity

The indiscriminate use of chemical pesticides disturbs the soil environment, thereby affecting flora and fauna including soil microflora, and also the physicochemical properties of the soil, viz. pH, salinity, alkalinity, leading to poor soil fertility. With the application of pesticides, possibilities exist that these chemicals may exert certain effects on non-target soil microorganisms. The soil microbial biomass plays an important role in the soil ecosystem, where they fulfill a crucial role in nutrient cycling and decomposition. A series of field experiments were conducted at farmer’s field at Sitapur, UP with different modules of integrated pest management (IPM) including use of safe formulations. The impact of application of these pesticides on the soil properties including soil microbial populations, microbial biomass carbon and enzymatic activity was assessed. It was observed that soil microbial biomass C content and dehydrogenase activity was influenced by IPM interventions.

[1]  S. Arora,et al.  Effect of Organic Sources of Nitrogen on Rice (Oryza sativa) and Soil Carbon Pools in Inceptisols of Jammu , 2013 .

[2]  Rahul Tripathi,et al.  Microbial Biomass and Carbon Mineralization in Agricultural Soils as Affected by Pesticide Addition , 2012, Bulletin of Environmental Contamination and Toxicology.

[3]  S. Arora,et al.  Effect of different organic sources on biochemical properties in typical Inceptisols of Jammu. , 2012 .

[4]  S. K. Gosal,et al.  Effect of pesticide application on soil microorganisms , 2011 .

[5]  Ö. Kara,et al.  The Effect of Different Land Uses on Soil Microbial Biomass Carbon and Nitrogen in Bartın Province , 2008 .

[6]  S. Tripathi,et al.  Enzyme activities and microbial biomass in coastal soils of India , 2007 .

[7]  R. Parsad,et al.  Effects of chlorpyrifos and quinalphos on dehydrogenase activities and reduction of Fe3+ in the soils of two semi-arid fields of tropical India , 2005 .

[8]  P. Groffman,et al.  Relationships between microbial biomass and dissipation of 2,4-D and dicamba in soil , 1997, Biology and Fertility of Soils.

[9]  D. Singh,et al.  Total bacterial and fungal population after chlorpyrifos and quinalphos treatments in groundnut (Arachis hypogaea L.) soil. , 2004, Chemosphere.

[10]  P. Perucci,et al.  Effects of the herbicide imazethapyr on soil microbial biomass and various soil enzyme activities , 1994, Biology and Fertility of Soils.

[11]  W. J. Jones,et al.  Correlations between pesticide transformation rate and microbial respiration activity in soil of different ecosystems , 2001, Biology and Fertility of Soils.

[12]  B. Ramakrishnan,et al.  Effect of pesticides on microbial biomass of flooded soil , 1998 .

[13]  E. Topp,et al.  Pesticides: microbial degradation and effects on microorganisms. , 1997 .

[14]  R. Joergensen,et al.  The fumigation-extraction method to estimate soil microbial biomass: Calibration of the kEC value , 1996 .

[15]  D. R. Linden,et al.  Defining soil quality for a sustainable environment , 1994 .

[16]  D. Parkinson,et al.  Soil biological criteria as indicators of soil quality: Soil microorganisms , 1992 .

[17]  D. Schröder,et al.  Side-effects of sequentially- and simultaneously-applied pesticides on non-target soil microorganisms: Laboratory experiments , 1990 .

[18]  L. F. Elliott,et al.  Soil microbial biomass and selected soil enzyme activities: Effect of fertilization and cropping practices , 1985 .

[19]  W. A. Dick,et al.  Relationships Between Enzyme Activities and Microbial Growth and Activity Indices in Soil 1 , 1983 .

[20]  D. A. Klein,et al.  A rapid procedure to evaluate the dehydrogenase activity of soils low in organic matter , 1971 .

[21]  D. Pramer,et al.  Experimental Soil Microbiology , 1964 .