@book{26131,
	author = {Regi P Mathews  and Jose A I (Guide)},
	title = {Suitability of Rockphosphate for Direct Application in Acid Rice Soils of Kerala},
	publisher = {Department of Soil Science and Agricultural Chemistry, College of Horticulture },
	year = {1985},
	address = {Vellanikkara},
	url = {https://krishikosh.egranth.ac.in/handle/1/5810150343}
}