Regional Investigation on Interaction of Nitrogen Management, Hybrid Selection, and Population on Corn Production

IPNI-2011-GBL-47

A large number of studies within individual states have investigated the effects of plant populations and their interactions with corn hybrids. Recently, numerous studies have investigated the use of ground-based active optical sensors for use in predicting corn N requirement. The results of the sensor studies have been mixed, perhaps due to differences in corn hybrid selection or due to environmental effects. Read more


Year of initiation:2011
Year of completion:2013
Map:

Interpretive Summary

2013

Making sound recommendations for N fertilizer rate and timing for optimal corn yield and minimal N loss can be complex and challenging, especially considering seasonal and locational variability. Splitting N applications between pre-plant and in-season allows room for adjustment to specific seasonal conditions. Tools such as crop sensors and the Maize N model have been developed to help fine-tune corn N management.

2012

Making sound recommendations for N fertilizer rate and timing for optimal corn yield and minimal N loss can be complex and challenging, especially considering seasonal and locational variability. Splitting N applications between pre-plant and in-season allows room for adjustment to specific seasonal conditions. Tools such as crop sensors and the Maize N model have been developed to help fine-tune corn N management.


Updates & Reports

2014

2014 Annual Report

2011

Project Description


Project Leader

Richard Ferguson, University of Nebraska-Lincoln


Project Cooperators

Newell Kitchen
Dave Franzen


IPNI Staff

Mike Stewart


Location

Americas \ Northern America \ USA \ Nebraska

Americas \ Northern America \ USA \ Missouri

Americas \ Northern America \ USA \ North Dakota


Topics

4r rate, best management practices, nutrient management, precision agriculture, yield

maize

Nitrogen (N)