@book{61826,
	author = {Virendra Kumar (Ed.) and Indian Farmers Fertiliser Cooperative Limited (New Delhi) and Kaore, S V (Ed.)},
	title = {Soil fertility and fertiliser use},
	publisher = {IFFCO},
	year = {1990},
	address = {New Delhi},
	note = {Contents: v.4 Nutrient management and supply system for Sustaining agriculture in 1990s}
}