Statistics on Fertilizers and Liming Materials in the United States

Mehring, Arnon L.; Adams, Jesse; Jacobs, K. D.

doi:10.1097/00010694-195803000-00024

Cited by 5 publications

(15 citation statements)

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“…By harmonizing the annual national commercial farmused N consumption from Mehring et al (1957) for 1850-1951, USDA (1971) for 1952-1959, and USDA-ERS (2013 for 1960-2011, we obtained the N consumption record of the contiguous U.S. from 1850 to 2011.…”

Section: Historical N Fertilizer Use Rate Reconstructionmentioning

confidence: 99%

“…By integrating and gap-filling the annual state-level farm-used N fertilizer 90 consumption from Mehring et al (1957), USDA (1971), USDA (1977), Brakebill and Grinberg (2017), and national N consumption generated above, we reconstructed the state-level N fertilizer consumption at the contiguous U.S. from 1850 to 2015. For period before 1930, the state-level N consumptions were unavailable.…”

Section: Historical N Fertilizer Use Rate Reconstructionmentioning

confidence: 99%

“…Using data from Mehring et al (1957), USDA (1957), Ibach et al (1964), Ibach and Adams (1967), USDA-ERS (2013), and USDA-NASS (2017) (supplementary table S2), we generated national crop-specific fertilizer use rates for the period of 1850-2015. We focused on nine major crop types nationwide including corn, soybean, winter wheat, spring wheat, cotton, sorghum, rice, barley, and durum wheat.…”

Section: Historical N Fertilizer Use Rate Reconstructionmentioning

confidence: 99%

“…We further gap-filled the national crop-specific N use rates by using state-level N rates derived above, which served as the reference for gap-filling 105 of the state-level crop-specific data later. Mehring et al (1957) provided national total fertilizer consumption (i.e. nitrogen, phosphate, and potassium) of corn, soybean, wheats (winter wheat, spring wheat, and durum wheat in total), cotton, barley, and rice in 1927, 1938, 1942, 1946, and 1950, and specifically reported the N consumptions in 1950.…”

Section: Historical N Fertilizer Use Rate Reconstructionmentioning

confidence: 99%

“…We assume cropland pasture was not fertilized until 1945 due to a lack of area data and low N use (< 1.5% of national total N use in 1942, Mehring et al, 1957). By timing the annual state-level N consumption with the ratio of cropland pasture N consumption to N consumption in each state of the year 1954 (USDA, 1957) for the period [1945][1946][1947][1948][1949][1950][1951][1952][1953][1954][1955][1956][1957][1958][1959], and the year 1964 145 (Ibach et al, 1967) for the period 1960-2015, we obtained state-level N consumption of cropland pasture from 1945 to 2015.…”

Section: Historical N Fertilizer Use Rate Reconstructionmentioning

confidence: 99%

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Historical Nitrogen Fertilizer Use in Agricultural Ecosystem of the Continental United States during 1850–2015: Application rate, Timing, and Fertilizer Types

Cao¹,

Lü²

2017

Preprint

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Abstract. Tremendous amount of anthropogenic nitrogen (N) fertilizer has been applied to agricultural lands to promote the crop production in the United States since the 1850s. However, inappropriate N management practices caused numerous ecological and environmental problems which are difficult to quantify due to paucity of historically spatially explicit fertilizer use maps. Understanding and assessing N fertilizer management history could provide essential implications for enhancing N 10 use efficiency (NUE) and reducing N loss. In this study, we therefore developed long-term gridded maps depicting cropspecific N fertilizer use rate, timing, and fraction of ammonium N (

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Section: Historical N Fertilizer Use Rate Reconstructionmentioning

confidence: 99%

Section: Historical N Fertilizer Use Rate Reconstructionmentioning

confidence: 99%

Section: Historical N Fertilizer Use Rate Reconstructionmentioning

confidence: 99%

Section: Historical N Fertilizer Use Rate Reconstructionmentioning

confidence: 99%

Section: Historical N Fertilizer Use Rate Reconstructionmentioning

confidence: 99%

See 3 more Smart Citations

Historical Nitrogen Fertilizer Use in Agricultural Ecosystem of the Continental United States during 1850–2015: Application rate, Timing, and Fertilizer Types

Cao¹,

Lü²

2017

Preprint

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Net greenhouse gas balance in U.S. croplands: How can soils be part of the climate solution?

You,

Tian,

Pan

et al. 2023

Global Change Biology

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Agricultural soils play a dual role in regulating the Earth's climate by releasing or sequestering carbon dioxide (CO2) in soil organic carbon (SOC) and emitting non‐CO2 greenhouse gases (GHGs) such as nitrous oxide (N2O) and methane (CH4). To understand how agricultural soils can play a role in climate solutions requires a comprehensive assessment of net soil GHG balance (i.e., sum of SOC‐sequestered CO2 and non‐CO2 GHG emissions) and the underlying controls. Herein, we used a model‐data integration approach to understand and quantify how natural and anthropogenic factors have affected the magnitude and spatiotemporal variations of the net soil GHG balance in U.S. croplands during 1960–2018. Specifically, we used the dynamic land ecosystem model for regional simulations and used field observations of SOC sequestration rates and N2O and CH4 emissions to calibrate, validate, and corroborate model simulations. Results show that U.S. agricultural soils sequestered Tg CO2‐C year−1 in SOC (at a depth of 3.5 m) during 1960–2018 and emitted Tg N2O‐N year−1 and Tg CH4‐C year−1, respectively. Based on the GWP100 metric (global warming potential on a 100‐year time horizon), the estimated national net GHG emission rate from agricultural soils was Tg CO2‐eq year−1, with the largest contribution from N2O emissions. The sequestered SOC offset ~28% of the climate‐warming effects resulting from non‐CO2 GHG emissions, and this offsetting effect increased over time. Increased nitrogen fertilizer use was the dominant factor contributing to the increase in net GHG emissions during 1960–2018, explaining ~47% of total changes. In contrast, reduced cropland area, the adoption of agricultural conservation practices (e.g., reduced tillage), and rising atmospheric CO2 levels attenuated net GHG emissions from U.S. croplands. Improving management practices to mitigate N2O emissions represents the biggest opportunity for achieving net‐zero emissions in U.S. croplands. Our study highlights the importance of concurrently quantifying SOC‐sequestered CO2 and non‐CO2 GHG emissions for developing effective agricultural climate change mitigation measures.

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Supplementary material to "Historical Nitrogen Fertilizer Use in Agricultural Ecosystem of the Continental United States during 1850–2015: Application rate, Timing, and Fertilizer Types"

Cao¹,

Lü²

2017

Preprint

View full text Add to dashboard Cite

Statistics on Fertilizers and Liming Materials in the United States

Cited by 5 publications

References 0 publications

Historical Nitrogen Fertilizer Use in Agricultural Ecosystem of the Continental United States during 1850–2015: Application rate, Timing, and Fertilizer Types

Historical Nitrogen Fertilizer Use in Agricultural Ecosystem of the Continental United States during 1850–2015: Application rate, Timing, and Fertilizer Types

Net greenhouse gas balance in U.S. croplands: How can soils be part of the climate solution?

Supplementary material to "Historical Nitrogen Fertilizer Use in Agricultural Ecosystem of the Continental United States during 1850–2015: Application rate, Timing, and Fertilizer Types"

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Statistics on Fertilizers and Liming Materials in the United States

Cited by 5 publications

References 0 publications

Historical Nitrogen Fertilizer Use in Agricultural Ecosystem of the Continental United States during 1850–2015: Application rate, Timing, and Fertilizer Types

Historical Nitrogen Fertilizer Use in Agricultural Ecosystem of the Continental United States during 1850–2015: Application rate, Timing, and Fertilizer Types

Net greenhouse gas balance in U.S. croplands: How can soils be part of the climate solution?

Supplementary material to &quot;Historical Nitrogen Fertilizer Use in Agricultural Ecosystem of the Continental United States during 1850–2015: Application rate, Timing, and Fertilizer Types&quot;

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Supplementary material to "Historical Nitrogen Fertilizer Use in Agricultural Ecosystem of the Continental United States during 1850–2015: Application rate, Timing, and Fertilizer Types"