SINGH, MUNESHWAR, and P N TAKKAR. “Influence of Neem Oil-Coated Urea and Maxican Lilac (Gliricidia Sepium) As Green-Manure on Transformation of Soil Nitrogen in Rice (Oriza sativa)wheat (Triticum Aestivum) System in Typic Hapluestert”. The Indian Journal of Agricultural Sciences, vol. 67, no. 9, May 2013, https://epubs.icar.org.in/index.php/IJAgS/article/view/30014.