Additional comments on"Synthetic nitrogen fertilizers deplete soil nitrogen: a global dilemma for sustainable cereal production," by R.L. Mulvaney, S.A. Khan, and T.R. Ellsworth in the Journal of Environmental Quality 2009 38:2295-2314.
David
M B
MB
McIsaac
G F
GF
Darmody
R G
RG
D000383:Agriculture; D003247:Conservation of Natural Resources / Q000379:methods*; D002523:Edible Grain / Q000254:growth & development*; D005308:Fertilizers; D009584:Nitrogen / Q000737:chemistry*; D012987:Soil / Q000032:analysis*
D005308:Fertilizers; D012987:Soil; D009584:Nitrogen