Benchmarking impact of nitrogen inputs on grain yield and environmental performance of producer fields in the western US Corn Belt

Tenorio, Fatima A.; McLellan, Eileen; Eagle, Alison J.; Cassman, Kenneth G.; Andersen, Daryl; Krausnick, Marie; Oaklund, Russell; Thorburn, John; Grassini, Patricio

doi:10.1016/j.agee.2020.106865

Cited by 39 publications

(34 citation statements)

References 57 publications

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“…Similarly, Tenorio et al. (2020) reported an N balance ranging from −50 to 180 kg ha −1 in corn fields under rainfed conditions in Nebraska that received 50–250 kg N ha −1 .…”

Section: Resultsmentioning

confidence: 90%

“…There are growing efforts to use N balance as an indicator of potential N losses because it is a measure of anthropogenic N supply that exceeds crop N demand (McLellan et al., 2018; Sela et al., 2019; Tenorio et al., 2020). Recent studies have shown significant relationships between N balance and nitrous oxide and nitrate‐N leaching losses (McLellan et al., 2018; Omonode, Halvorson, Gagnon, & Vyn, 2017; Venterea, Coulter, & Dolan, 2016; Zhao, Christianson, Harmel, & Pittelkow, 2016).…”

Section: Resultsmentioning

confidence: 99%

“…For the treatments with in‐season N application at V5 or V9, only SMN measured after this application was included in the analysis, that is, after the full N rate was applied. Relative grain yields (% of maximum grain yield at that site‐year) were used to account for weather and yield variation across site‐years, which also gives equal weight to each site‐year when calculating treatment means (Tenorio et al., 2020; Yau & Hamblin, 1994). Relative yield was calculated by dividing the mean of each treatment by the highest yielding treatment within each site‐year.…”

Section: Methodsmentioning

confidence: 99%

“…As a simple and robust indicator that can be readily applied at the field‐level, there are growing efforts to use N balance (i.e. the difference between N inputs and outputs) as an estimate of N losses to track changes in N fertilizer efficiency and decrease the environmental footprint of crop production (McLellan et al., 2018; Tenorio et al., 2020). Recent studies have shown that N balance is sensitive to changes in N rate and form in the U.S. Midwest (Sela, Woodbury, Marjerison, & van Es, 2019).…”

Section: Introductionmentioning

confidence: 99%

“…Recent studies have shown that N balance is sensitive to changes in N rate and form in the U.S. Midwest (Sela, Woodbury, Marjerison, & van Es, 2019). However, little research has explored how N balance can be utilized within an integrated N management framework to help growers not only identify the potential for N deficiencies but also evaluate the risk of environmental N losses (Tenorio et al., 2020).…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Relationship of in‐season soil nitrogen concentration with corn yield and potential nitrogen losses

Preza‐Fontes

Nafziger

Christianson

et al. 2020

Soil Science Soc of Amer J

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New process‐based tools for predicting in‐season soil nitrogen (N) levels has the potential to provide timely information for N management decisions for corn (Zea mays L.) production systems in the U.S. There is, however, little published data supporting the assumption that soil mineral N (SMN, NH4‐N + NO3‐N at 0–60 cm) is correlated with yield response at different vegetative growth stages. Moreover, the degree to which changes in SMN influence the risk of N losses is uncertain. Data from 32 site‐years of field experiments in Illinois (2015–2018)—that included 12 combinations of N fertilizer rate, timing, and source—were used to evaluate the relationship between SMN concentration and grain yields across vegetative growth stages and estimate the exceedance probability of N losses. Overall, SMN across vegetative growth explained 46–61% of the variation in grain yield. Critical level of SMN that optimized yield decreased from 23.4 mg kg−1 at V5‐V7 to 9.1 mg kg−1 at VT‐R1 growth stage, but it was consistent, ranging from 14.7 to 16.3 mg kg−1, among sampling periods between V8 and V16 stages. While increasing SMN from deficiency (below critical levels) to sufficiency (at critical levels) increased yields by 22% (11.8 vs. 14.4 Mg ha−1), it also increased the probability of environmental N losses throughout vegetative growth, indicating a clear tradeoff between production and sustainability goals. These results help guide the development of sustainable in‐season N management strategies by illustrating the importance of incorporating risks of environmental N losses when trying to reach optimum grain yield levels.

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“…Similarly, Tenorio et al. (2020) reported an N balance ranging from −50 to 180 kg ha −1 in corn fields under rainfed conditions in Nebraska that received 50–250 kg N ha −1 .…”

Section: Resultsmentioning

confidence: 90%

Section: Resultsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Relationship of in‐season soil nitrogen concentration with corn yield and potential nitrogen losses

Preza‐Fontes

Nafziger

Christianson

et al. 2020

Soil Science Soc of Amer J

View full text Add to dashboard Cite

show abstract

Learning to balance wheat G × E × M interactions in response to a changing climate—The case for ultra‐early planting systems

Collier,

Spaner,

Beres

2024

Agronomy Journal

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Reported global reductions in cereal grain yields due to increased global average temperature combined with increasing global populations peaking near 2050 create an immediate need to increase cereal grain yield potential and reduce the yield gap between realized on‐farm grain yield and potential yield. The development of an ultra‐early planting system for spring wheat (Triticum aestivum L.) on the northern Great Plains can increase the resiliency of current growing systems to a changing climate. This was achieved through the development of a unique set of practices designed to successfully shift current wheat production systems to ultra‐early growing systems. Ultra‐early planted wheat growing systems on the northern Great Plains will provide immediate benefits to the adopting producer in the form of increased grain yield and increased grain yield stability relative to current practices. As global average temperatures warm, and atmospheric CO2 concentrations increase, the northern Great Plains region is in a unique position to potentially realize grain yield increases rather than temperature driven grain yield decreases. Shifting planting earlier and taking advantage of increased growing degree day accumulation and water use efficiencies while avoiding higher temperatures during sensitive physiological periods are tactics implemented in ultra‐early growing systems that will increase in importance and relevance in the next three decades as average daily temperatures increase.This article is protected by copyright. All rights reserved

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Characterization of phosphorus balances in corn silage fields from eight New York dairies

Olivo,

Klaiber,

Workman

et al. 2024

Agronomy Journal

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Optimizing phosphorus (P) application in corn (Zea mays L.) silage production systems to align with crop P requirements while sustaining soil test P (STP) levels can help mitigate environmental risks and enhance farm profitability. The objectives of this study were to characterize P balances of corn silage fields in New York, their drivers, relationships between P balances and field STP and nitrogen (N) balances, as well as the impact of manure application practices on balances. Field‐level balances (supply–uptake) for P and N were derived for 994 field observations across eight dairy farms and 5 years. On average, P balances were low (11 kg P ha−1) with a wide range across farm averages (−11 to 30 kg P ha−1). Across farms, P was applied at higher rates to fields with adequate STP than to lower STP fields, indicating potential opportunities for reallocation of P within farms. Phosphorus balances were positively related to N balances. Manure nutrient utilization indicated that N‐based applications would lead to large positive P balances in all farms. Phosphorus‐based manure applications could cover on average 51% of corn N requirements under current farm manure application practices. This could be increased up to 85% when maximizing the utilization of manure inorganic N. Management alternatives to prevent excessive P balances include improving diet formulation to reduce P excretion, reducing animal density, exporting manure, implementing manure treatment technologies that conserve N and/or remove P, combining appropriate rates of manure and fertilizer, and maximizing manure inorganic N utilization in field applications.

show abstract

Benchmarking impact of nitrogen inputs on grain yield and environmental performance of producer fields in the western US Corn Belt

Cited by 39 publications

References 57 publications

Relationship of in‐season soil nitrogen concentration with corn yield and potential nitrogen losses

Relationship of in‐season soil nitrogen concentration with corn yield and potential nitrogen losses

Learning to balance wheat G × E × M interactions in response to a changing climate—The case for ultra‐early planting systems

Characterization of phosphorus balances in corn silage fields from eight New York dairies

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