Loganathan, P.2014-12-162014-12-162011Journal of the Soil Science Society of Sri Lanka, 23:p.1-5https://dl.nsf.gov.lk/handle/1/16231AgricultureCombinationGreen manureInorganic nitrogenNitrate leaching reductionYield performanceSmall oninGround water pollutionPollution control methodsInfluence of the combined use of green manure and inorganic nitrogen on nitrate leaching and the productivity of small onionArticle