Long-term crop rotation and tillage effects on soil greenhouse gas emissions and crop production in Illinois, USA

Behnke, Gevan D.; Zuber, Stacy M.; Pittelkow, Cameron M.; Nafziger, Emerson D.; Villamil, María B.

doi:10.1016/j.agee.2018.03.007

Cited by 116 publications

(81 citation statements)

References 66 publications

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“…However, looking at the YdI means (Appendix A Table A4) reveals that larger YdI values occur in the crop rotations (0.27, CS and 0.19, CSW) relative to the monocultures (−0.74, CCC and −0.26, SSS). Using the same yield data, Behnke, et al [17] found that crop rotation increased the yields of corn and soybean in the CS rotation compared to either the CCC and SSS monocultures. Since wheat was not grown continuously, a wheat comparison was not possible.…”

Section: Yield Indexmentioning

confidence: 99%

“…The exact number of sampling events is included in the Appendix A (Table A2). A detailed description of the cumulative GHG calculations and other information is included in a previous publication [17]. Yields were standardized by crop to account for differences in yield levels, and values were normalized to a mean of 0 and standard deviation of 1.…”

Section: Discussionmentioning

confidence: 99%

“…This was further verified by the increased pH values (also heavy loading in PC1, Table 2) occurring in the soybean rotations (7.13 compared to 5.34, respectively; Appendix A Table A6). Likewise, the CCC rotations had significantly greater emissions of CO 2 compared to SSS (4.43 Mg-N ha −1 year −1 compared to 2.63 kg-N ha −1 year −1 ; Appendix A Table A4) [17]. Increases in WAS are related to the protection of SOM.…”

Section: Carbon Dioxidementioning

confidence: 99%

“…Comparing this to the T and NT YdI levels, an inverse relationship exists (0.22, T and −0.18 NT; Appendix A Table A4). Behnke, et al [17] observed a significant yield increase due to tillage used as a means of managing the high amount of corn residue produced in high organic matter soils. Other studies in the Midwest confirm an increase in yield due to tillage as well [24,25].…”

Section: Yield Indexmentioning

confidence: 99%

“…This demand for high yield does not come without consequences; agriculture contributes around 9% of total US greenhouse gas (GHG) emissions. Of this 9%, carbon dioxide (CO 2 ) makes up the majority Just as tillage has been shown to increase yields in the Midwest, crop rotation has been well documented to increase yields in both corn and soybean years [17,26,[30][31][32][33][34][35][36]. However, some soil properties, such as SOC, have been shown to increase with more years of growing corn due to the larger residue return from corn back to the soil system [21,23,[37][38][39][40].…”

Section: Introductionmentioning

confidence: 99%

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Exploring the Relationships between Greenhouse Gas Emissions, Yields, and Soil Properties in Cropping Systems

et al. 2018

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Abstract:Relationships between greenhouse gas emissions, yields, and soil properties are not well known. Utilizing two datasets from long-term cropping systems in Illinois, USA, our we aim to address these knowledge gaps. The objective of this study was to explore the relationships between the physical and chemical properties and greenhouse gas (GHG) emissions of soil, and cash crop yields over a four-year time-period and following 15 years of treatment implementation in Illinois, USA. The experimental layout was a split-plot arrangement involving rotation and tillage treatments in a randomized complete block design with four replications. The studied crop rotations were continuous corn [Zea mays L.] (CCC), corn-soybean [Glycine max (L.) Merr.] (CS), continuous soybean (SSS), and corn-soybean-wheat [Triticum aestivum L.] (CSW), with each phase being present for every year. The tillage options were chisel tillage (T) and no-tillage (NT). We used an array of multivariate approaches to analyze both of our datasets that included 31 soil properties, GHG emissions (N 2 O, CO 2 , and CH 4 ) and cash crop yields. The results from our analyses indicate that N 2 O emissions are associated with a low soil pH, an increased Al concentration, the presence of soil nitrate throughout the growing season, an increase in plant available water (PAW) and an increased soil C concentration. Likewise, soil CO 2 respiration was correlated with low pH, elevated Al concentrations, low Ca, increased PAW, higher levels of microbial biomass carbon (MBC), and lower water aggregate stability (WAS). Emissions of CH 4 were associated with increased levels of MBC. Lastly, the yield index (YdI) was correlated with lower levels of soil Ca and available P and lower values of WAS. The association between high YdI and lower WAS can be attributed to tillage, as tillage lowers WAS, but increases yields in highly productive cropping systems in the Midwest.

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Section: Yield Indexmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Carbon Dioxidementioning

confidence: 99%

Section: Yield Indexmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Exploring the Relationships between Greenhouse Gas Emissions, Yields, and Soil Properties in Cropping Systems

et al. 2018

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Soil Degradation, Resilience, Restoration, and Sustainable Use

COTA-UNGSON

González‐García

Juárez‐Maldonado

2023

Agroecological Approaches for Sustainable Soil Management

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Soil health management practices and crop productivity

Miner

Delgado

Ippolito

et al. 2020

Agricultural & Env Letters

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Globally, food systems face multiple challenges, including minimizing environmental impacts, adapting to a changing climate, increasing yields, and maintaining and/or increasing crop nutritional quality. Management techniques that focus on soil health (SH) are promising solutions to mitigate some environmental impacts and may increase economic returns. However, claims that SH increases will concurrently increase crop quality and productivity merit careful examination. Factors beyond SH metrics determine crop nutritional quality. Yield outcomes of SH management are of significance, as there are concerns that yield increases are insufficient to meet future food demands. While SH frameworks are comparatively recent initiatives, there are thousands of published conservation agriculture studies that examine yield outcomes with cover crops, no‐till, and rotation. This literature indicates that SH practices can also have neutral or negative yield impacts—only in select systems have consistent yield increases been realized, highlighting the need for language clarification and improvements in mechanistic understanding of regional‐scale yield impacts.

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Long-term crop rotation and tillage effects on soil greenhouse gas emissions and crop production in Illinois, USA

Cited by 116 publications

References 66 publications

Exploring the Relationships between Greenhouse Gas Emissions, Yields, and Soil Properties in Cropping Systems

Exploring the Relationships between Greenhouse Gas Emissions, Yields, and Soil Properties in Cropping Systems

Soil Degradation, Resilience, Restoration, and Sustainable Use

Soil health management practices and crop productivity

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