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Nitrogen Fertilizer and Residue Management in Dryland No‐Till Hard Red Spring Wheat

Nitrogen Fertilizer and Residue Management in Dryland No‐Till Hard Red Spring Wheat AbbreviationsNDVINormalized Difference Vegetation IndexNIRnear infrared reflectance spectroscopyPLSpure live seedHard red spring wheat (Triticum aestivum L.) is the wheat class predominantly grown in Montana. Hard red spring wheat in the northern Great Plains region is typically grown in no‐till cropping systems without supplemental irrigation (Hansen et al., 2012). Nitrogen fertilization directly and substantially impacts wheat production. Efficient N fertilizer management is critical for agronomic, economic, and environmental reasons (Chen et al., 2016; Efretuei et al., 2016).Time and rate of N fertilizer application are important factors of nutrient management. Failure to prescribe the appropriate rate and time for fertilizer application often results in inefficient N management (Zhang et al., 2017; Hawkesford, 2014). Excessive N rates are sometimes applied to wheat in the hope of increasing production (Liang et al., 2013). However, wheat yield increase is not always linearly related to increases in N fertilizer application rates. Inefficient N management has been linked to N leaching, denitrification, volatilization, and decline in water quality (Ravishankara et al., 2009; Reay et al., 2012). Nitrogen applications prior to (or at planting) may be considered advantageous by some producers, as it helps to better allocate their time and labor (Randall et al., 2003) and benefit from http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png "Agrosystems, Geosciences & Environment" Wiley

Nitrogen Fertilizer and Residue Management in Dryland No‐Till Hard Red Spring Wheat

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References (63)

Publisher
Wiley
Copyright
© American Society of Agronomy
eISSN
2639-6696
DOI
10.2134/age2019.09.0077
Publisher site
See Article on Publisher Site

Abstract

AbbreviationsNDVINormalized Difference Vegetation IndexNIRnear infrared reflectance spectroscopyPLSpure live seedHard red spring wheat (Triticum aestivum L.) is the wheat class predominantly grown in Montana. Hard red spring wheat in the northern Great Plains region is typically grown in no‐till cropping systems without supplemental irrigation (Hansen et al., 2012). Nitrogen fertilization directly and substantially impacts wheat production. Efficient N fertilizer management is critical for agronomic, economic, and environmental reasons (Chen et al., 2016; Efretuei et al., 2016).Time and rate of N fertilizer application are important factors of nutrient management. Failure to prescribe the appropriate rate and time for fertilizer application often results in inefficient N management (Zhang et al., 2017; Hawkesford, 2014). Excessive N rates are sometimes applied to wheat in the hope of increasing production (Liang et al., 2013). However, wheat yield increase is not always linearly related to increases in N fertilizer application rates. Inefficient N management has been linked to N leaching, denitrification, volatilization, and decline in water quality (Ravishankara et al., 2009; Reay et al., 2012). Nitrogen applications prior to (or at planting) may be considered advantageous by some producers, as it helps to better allocate their time and labor (Randall et al., 2003) and benefit from

Journal

"Agrosystems, Geosciences & Environment"Wiley

Published: Jan 1, 2019

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