Supplemental Late-Vegetative Nitrogen Applications for High-Yield Corn: Agronomic, Economic and Environmental Implications with Modern Versus Older Hybrids
IPNI-2014-USA-4RN25
Introduction: Modern corn hybrids have a “functional stay green” capacity whereby their leaves not only stay green longer during the grain filling period, but also maintain their photosynthetic capacity until much later in the grain filling period (Tollenaar and Lee, 2011). Modern hybrids also yield more than hybrids of earlier decades because of their improved stress tolerance to plant density and other stress factors (whether pest-related factors or abiotic challenges). Read more
Interpretive Summary
| 2015 | Recent literature reviews have confirmed that modern hybrids continue accumulating N longer into the growing season, and therefore it may be beneficial to ensure soil mineral N availability by intentional supplemental, late-season (e. g. , V12 to V14) N application. |
| 2014 | It has been proposed that modern hybrids continue to accumulate N longer into the growing season, and for this reason it would be beneficial to ensure soil mineral N availability by way of intentional supplemental, late-season (e. g. , V12 to V14) N application. |
Updates & Reports
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| 2014 | Project Description |