National institute od sciences of India2013-08-242013-08-241954ISSNhttp://krishikosh.egranth.ac.in/handle/1/2039478en-UScrops, area, clay, nitrogen, acidity, land resources, yields, organic fertilizers, inorganic acid salts, clay mineralsBulletin Of The National Institute Od Sciences Of IndiaProceedings Of The Symposium On Soil Research In IndiaJournal