Improved soil biological health increases corn grain yield in N fertilized systems across the Corn Belt.

Scientific Reports
Jordon WadeJaimie R West

Abstract

Nitrogenous fertilizers have nearly doubled global grain yields, but have also increased losses of reactive N to the environment. Current public investments to improve soil health seek to balance productivity and environmental considerations. However, data integrating soil biological health and crop N response to date is insufficient to reliably drive conservation policy and inform management. Here we used multilevel structural equation modeling and N fertilizer rate trials to show that biologically healthier soils produce greater corn yields per unit of fertilizer. We found the effect of soil biological health on corn yield was 18% the magnitude of N fertilization, Moreover, we found this effect was consistent for edaphic and climatic conditions representative of 52% of the rainfed acreage in the Corn Belt (as determined using technological extrapolation domains). While N fertilization also plays a role in building or maintaining soil biological health, soil biological health metrics offer limited a priori information on a site's responsiveness to N fertilizer applications. Thus, increases in soil biological health can increase corn yields for a given unit of N fertilizer, but cannot completely replace mineral N fertilization ...Continue Reading

References

Apr 5, 2001·Journal of Environmental Quality·G W Randall, D J Mulla
Apr 15, 2006·Proceedings of the National Academy of Sciences of the United States of America·Kees-Jan van GroenigenChris van Kessel
Sep 6, 2007·Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences·M G KibblewhiteM J Swift
Oct 30, 2007·Journal of Environmental Quality·S A KhanC W Boast
Dec 18, 2009·Ecological Applications : a Publication of the Ecological Society of America·Jennifer B Gardner, Laurie E Drinkwater
Jun 14, 2014·Proceedings of the National Academy of Sciences of the United States of America·Iurii ShcherbakG Philip Robertson
Nov 29, 2014·Science·Leho TedersooKessy Abarenkov
Jul 6, 2016·Journal of Environmental Quality·Rodney T VentereaMichael S Dolan
Jan 20, 2018·Science·Manuel Delgado-BaquerizoNoah Fierer
Apr 21, 2018·The Science of the Total Environment·Dennis P SwaneyBongghi Hong
Aug 25, 2018·Science Advances·Ji ChenRui-Wu Wang
Dec 4, 2019·Global Change Biology·Ming YanRichard T Conant
Jan 1, 2018·Environmental Research Letters : ERL [Web Site]·Juan I Rattalino EdreiraPatricio Grassini

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Software Mentioned

nFactors
RStudio
lavaan package

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