@book{339943,
	author = {Silva , Helton de S. },
	title = {Yield and nitrogen balance in corn grown under no-tillage system},
	note = {Publicação on-line; 25 ref.; 7 illus; Sumaries (En, Pt)},
	url = {https://www.scielo.br/j/rbeaa/a/rPy3Rvfq8cd57CxvGkvfvSw/?format=pdf&lang=en}
}