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[9]
Recovery of fertilizer-derived inorganic-<Superscript>15</Superscript>N in a vegetable field soil as affected by application of an organic amendment.[J].Woo-Jung Choi;Hee-Myong Ro;Scott X. Chang.Plant and Soil.2004, 1
[10]
Competition for <Superscript>15</Superscript>N-labeled fertilizer in a pecan (<Emphasis Type="Italic">Carya illinoensis</Emphasis> K. Koch)-cotton (<Emphasis Type="Italic">Gossypium hirsutum</Emphasis> L.) alley cropping system in the southern United States.[J].Samuel C. Allen;Shibu Jose;P.K.R. Nair;Barry J. Brecke;Craig L. Ramsey.Plant and Soil.2004, 1