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Fluid Journal : Fall 2013
13 The Fluid Journal Fall 2013 Figure 1. Effect of starter fertilizer application on corn biomass at V6. Letters indicate statistically significant difference between treatments at p ≤ 0.05 Figure 2. Effect of starter fertilizers with and without micronutrient application on corn tissue nutrient concentration at V6. set (R1 to R2 growth stage). However, relatively few changes have been made to the nutrient sufficiency ranges since the 1960s. Given the growing interest and use of plant analysis to make fertilizer recommendations, ongoing research is needed to confirm that the corn and soybean NSRs are robust across time, environments, and genetics (soybean varieties and corn hybrids). The overall purpose of this 2012 (2010 to 2012) study was to: • Evaluate corn and soybean response (growth, plant nutrition, and yield) to combinations of starter and foliar fertilization that contain NPK with and without a blend of micronutrients (FE, Mn, Zn, Cu, and B) • Determine which combination of starter and foliar fertilization increases yield under irrigated conditions in Kansas. Methodology Sites. All sites had no history of visible micronutrient deficiency symptoms. Irrigation. All sites were irrigated with pivot sprinkler irrigation systems in corn/ soybean rotations. Irrigation was applied
Late Spring 2013