@book{51990,
	author = {Singh, Abdhesh Kumar.},
	title = {Effect of Tillage, Irrigation and Nitrogen on Soil-Water and Plant Relationship Under Rice-Maize Cropping System in Calcareous Soil / },
	publisher = {: RAU},
	year = {, 1998},
	address = {.- Pusa, Samastipur}
}