Changes in bacterial community structure of agricultural land due to long-term organic and chemical amendments.

  • Published source details Chaudhry V., Rehman A., Mishra A., Chauhan P.S. & Nautiyal C.S. (2012) Changes in bacterial community structure of agricultural land due to long-term organic and chemical amendments.. Microbial Ecology, 64, 450-60.


This study is summarised as evidence for the following.

Action Category

Convert to organic farming

Action Link
Soil Fertility
  1. Convert to organic farming

    A replicated, randomized site comparison study in 2010 on sandy loam soils in Maharashtra, India, (Chaudhry et al. 2012) found greater functional diversity of soil microorganism communities in organically managed land (Simpson diversity index of 0.0022) compared to  chemically managed land (index of 0.0018) and fallow grassland (index of 0.0015). Organically managed land was fertilized with composted cow manure while fallow grassland was left uncultivated and chemically managed land was fertilized with a mix of nitrogen, phosphorus and potassium in a ratio of 60:30:30 kg/ha. All fertilizers were applied annually for 16 years before 2010. Within each management type, soil samples were taken from four 10 × 10 m plots, at a depth of 15 cm. Soil samples from three of the plots were then randomly selected and mixed together, providing the final sample for analysis.


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