Abstract
The Journal of the National Science Foundation of Sri Lanka publishes the results of research in all aspects of Science and Technology. The journal also has a website at http://www.nsf.gov.lk/. 2021 Impact Factor: 0.682The JNSF provides immediate open access to its content on the principle that making research freely available to the public supports a greater global exchange of knowledge.
Highlights
Animal manures, crop residues, green manures and compost are frequently used in developing countries to maintain or to improve fertility of soil, soil physical parameters and productivity
All fertilizer treatments significantly increased the identified microbiological properties of soil i.e. total bacterial count, total fungal count, microbial biomass C, CO, evolution, N mineralization rate and nitrification rate compared to the control (Fig. 1to 6)
The results showed that addition of organic manure significantly (p I 0.001) increased the microbiological parameters in the soil compared with the additions of inorganic fertilizer (Figures 1to 6)
Summary
Crop residues, green manures and compost are frequently used in developing countries to maintain or to improve fertility of soil, soil physical parameters and productivity. Many studies demonstrate that the application of organic manure enhances the microbial processes in the soil^.^,^ High organic matter content in soils is generally associated with greater water holding ~ apacity .The. ~objective ofthis study was to investigate the microbiological and certain physical and chemical parameters over a 12 month period after application of inorganic and organic manure to coconut soil and assess the effect of inorganic and organic manure on the yield of coconut
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