@book{25959,
	author = {Kamalam P V  and Jose A I (Guide)},
	title = {Characterization of Kerala Soils into Fertility Classes with respect to Available P and K Extracted by a Common Extractant},
	publisher = {Department of Soil Science and Agricultural Chemistry,  College of Horticulture},
	year = {1988},
	address = {Vellanikkara},
	url = {https://krishikosh.egranth.ac.in/handle/1/5810154113}
}