Research Article

Evaluating the Impact of Starter Fertilizer on Winter Canola Grown in Oklahoma

Figure 2

Normalized difference vegetation index (NDVI) values at one week before and two weeks after topdress nitrogen (N) as influenced by seed-placed diammonium phosphate (DAP) and N application method at Lahoma and Perkins, OK, in 2011-2012; pre: preplant; top: topdress.
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