Data from: Continuous corn and corn–soybean profits over a 45-year tillage and fertilizer experiment

Trlica A, Walia MK, Krausz R, Secchi S, Cook RL

Date Published: December 22, 2016

DOI: http://dx.doi.org/10.5061/dryad.g1n25

 

Files in this package

Content in the Dryad Digital Repository is offered "as is." By downloading files, you agree to the Dryad Terms of Service. To the extent possible under law, the authors have waived all copyright and related or neighboring rights to this data. CC0 (opens a new window) Open Data (opens a new window)

Title Tillage x Fertility Crop Costs and Profits 1970 to 2014
Description These data represent the costs and profit (in 2014 US dollars per acre) associated with each tillage x fertility treatment plot. These data were used for the analysis in the Trlica et al. 2017 manuscript. Data were converted from $/ac to $/hectare for publication, but per hectare data are not included here.
Download TxF_Econ_model_output.csv (731.0 Kb)
Download README.txt (11.67 Kb)
Details View File Details
Title Nominal Prices 1970-2014
Description Summary of nominal (not inflated to 2014 US dollars) prices of inputs per unit, commodity values per bushel of corn and soybean, and composited PPITW index (2011=100).
Download prices_final.csv (3.748 Kb)
Download README.txt (1.631 Kb)
Details View File Details
Title Tillage x Fertility R script for data collation
Downloaded 1 time
Description "TxF_Economics_data_collation_final.R" is the R script file used to process and data files and generate cost, price, and profit estimates used in Trlica et al. (2017). All costs and prices quoted in U.S. dollars ($). Additional price and index information gathered from other reports and sources integrated into final price sheet are detailed in the R script and in Trlica et al. (2017). The "Econ data" files can be used with this script if you direct it at the right file folder, should be able to reproduce all the output files that we used for analysis.
Download TxF_Economics_data_collation_final.R (24.54 Kb)
Details View File Details
Title Ag_lime_2014-1970_price
Description Econ data file: "Ag_lime_2014-1970_price.csv" — Agricultural lime (CaCO3) price, applied to field, U.S. Average, 1970–2014 (USDA NASS Quick Stats download).
Download Ag_lime_2014-1970_price.csv (7.6 Kb)
Details View File Details
Title Amm_nit_2014_1970_price
Description Econ data file: "Amm_nit_2014_1970_price.csv" — Ammonium nitrate price (nominal $/ton), U.S. Average, 1970–2014 (USDA NASS Quick Stats download).
Download Amm_nit_2014_1970_price.csv (6.668 Kb)
Details View File Details
Title corn_price_USDANASS
Description Econ data file: "corn_price_USDANASS.csv" — Corn sale price (nominal $/bu), U.S. Average, 1970-2014 (USDA NASS Quick Stats download)
Download corn_price_USDANASS.csv (8.835 Kb)
Details View File Details
Title Gly_2014_2001_prices
Description Econ data file: "Gly_2014_2001_prices.csv" — Glyphosate price (4 lb ai/U.S. gal), U.S. Average, 2001-2014 (USDA NASS Quick Stats download).
Download Gly_2014_2001_prices.csv (2.572 Kb)
Details View File Details
Title Herb_use
Description Econ data file: "Herb_use.csv" — schedule of post-emergent herbicide applications used on No-till plots, 1970–2014: Gly_lbsai (Glyphosate, lbs a.i./ac), Para_lbsai (Paraquat, lbs a.i. per acre) See Cook and Trlica (2016).
Download Herb_use.csv (447 bytes)
Details View File Details
Title Labor_Unsorted
Description Econ data file: "Labor_Unsorted.csv" — unsorted labor wage rates, U.S. Average, 2015–1978 (USDA NASS Quick Stats download).
Download Labor_Unsorted.csv (4.249 Mb)
Details View File Details
Title Lime_appl_2014_1970
Description Econ data file: "Lime_appl_2014_1970.csv" — schedule of lime applications to the site by plot ID (tons per acre). Rates given for applications in 1975, 1983, 1991, 2001, 2012. See Cook and Trlica (2016).
Download Lime_appl_2014_1970.csv (1.629 Kb)
Details View File Details
Title Mach_op_costs
Description Econ data file: "Mach_op_costs.csv" — Operation costs for machinery activities, by implement type (determined from Illinois FarmDocs calculator tool, see Trlica et al. (2017))
Download Mach_op_costs.csv (343 bytes)
Details View File Details
Title Mach_price_index_1990
Description Econ data file: "Mach_price_index_1990.csv" — Machinery Totals (1990-index), index for Price Paid 1975-1990 (USDA NASS Quick Stats download).
Download Mach_price_index_1990.csv (5.764 Kb)
Details View File Details
Title Mach_price_index_2011
Description Econ data file: "Mach_price_index_2011.csv" — Machinery Totals, index for Price Paid (2011-index), 1990-2014 (USDA NASS Quick Stats download).
Download Mach_price_index_2011.csv (3.582 Kb)
Details View File Details
Title Master_Yield_1970-2014_econ
Description Econ data file: "Master_Yield_1970-2014.csv" — table of corn yield and ancillary field data for 1970–2014 seasons. Data file identical to file used in Cook and Trlica (2016) (see Dryad Digital Repository doi:10.5061/dryad.7920c). Data missing entirely for years 1981, 2008 due to crop loss.
Download Master_Yield_1970-2014_econ.csv (351.5 Kb)
Details View File Details
Title Para_2008_2001_prices
Description Econ data file: "Para_2008_2001_prices.csv" — Paraquat price (2.5 lb ai/U.S. gal), U.S. Average, 2001–2008 (USDA NASS Quick Stats download).
Download Para_2008_2001_prices.csv (1.586 Kb)
Details View File Details
Title PPITW_2013-1975-1990index
Description Econ data file: "PPITW_2013-1975-1990index.csv" — PPITW (Prices Paid Index for Commodities and Services, Interest, Taxes, and Farm Wage Rates) (1990=100) for 1975–2013 (USDA NASS Quick Stats download).
Download PPITW_2013-1975-1990index.csv (7.051 Kb)
Details View File Details
Title PPITW_2014-1990-2011index
Description Econ data file: "PPITW_2014-1990-2011index.csv" — PPITW (2011=100) for 1990–2014 (USDA NASS QuickStats download).
Download PPITW_2014-1990-2011index.csv (4.407 Kb)
Details View File Details
Title soy_price_USDANASS
Description Econ data file: "soy_price_USDANASS.csv" — Soybeans sale price (nominal $/bu), U.S. Average, 1970-2014 (USDA NASS Quick Stats download).
Download soy_price_USDANASS.csv (6.454 Kb)
Details View File Details
Title Table7_Fert_prices_1960
Description Econ data file: "Table7_Fert_prices_1960.csv" — Table 7 from report "Fertilizer Use and Price" listing price (nominal $/ton) of triple superphosphate (44-46%P) and potash/potassium chloride (60% K) 1960–2013 (see USDA Economic Research Service, https://www.ers.usda.gov/data-products/fertilizer-use-and-price.aspx)
Download Table7_Fert_prices_1960.csv (37.14 Kb)
Details View File Details
Title Urea_2014_1970_price
Description Econ data file: "Urea_2014_1970_price.csv" — Urea price (nominal $/ton), U.S. Average, 1970–2014 (USDA NASS Quick Stats download).
Download Urea_2014_1970_price.csv (6.445 Kb)
Details View File Details
Title Tillage x Fertility Econ data sample SAS code
Description This is an example of the SAS code used to analyze the final dataset for the Trlica et al. 2017 publication.
Download TxF_Econ_SASmixedmodel.txt (1.954 Kb)
Details View File Details

When using this data, please cite the original publication:

Trlica A, Walia MK, Krausz R, Secchi S, Cook RL (2017) Continuous corn and corn–soybean profits over a 45-year tillage and fertilizer experiment. Agronomy Journal 109(1): 218-226. http://dx.doi.org/10.2134/agronj2016.06.0377

Additionally, please cite the Dryad data package:

Trlica A, Walia MK, Krausz R, Secchi S, Cook RL (2016) Data from: Continuous corn and corn–soybean profits over a 45-year tillage and fertilizer experiment. Dryad Digital Repository. http://dx.doi.org/10.5061/dryad.g1n25
Cite | Share
Download the data package citation in the following formats:
   RIS (compatible with EndNote, Reference Manager, ProCite, RefWorks)
   BibTex (compatible with BibDesk, LaTeX)

Submissions have been temporarily disabled.

Search for data

Be part of Dryad

We encourage organizations to: