Fertiliser Association Of IndiaRoy, RN ; Seetharaman, S2013-02-272013-02-271975ISBNhttp://krishikosh.egranth.ac.in/handle/1/2030100en-USfertilizers, soil, crops, nitrogen, yields, planting, inorganic acid salts, irrigation, farms, riceFai-Fao Seminar On Optimising Agricultural Production Under Limited Availability Of Fertilisers 1974Proceedings