-
1
-
-
38949215760
-
Differences in phosphorus and nitrogen delivery to the Gulf of Mexico from the Mississippi River Basin
-
Alexander, R. B., R. A. Smith, G. E. Schwarz, E. W. Boyer, J. V. Nolan, and J. W. Brakebill. 2008. Differences in phosphorus and nitrogen delivery to the Gulf of Mexico from the Mississippi River Basin. Environmental Science & Technology 42(3):822-830. http:// dx.doi.org/10.1021/es0716103.
-
(2008)
Environmental Science & Technology
, vol.42
, Issue.3
, pp. 822-830
-
-
Alexander, R.B.1
Smith, R.A.2
Schwarz, G.E.3
Boyer, E.W.4
Nolan, J.V.5
Brakebill, J.W.6
-
2
-
-
0347967891
-
American economic association: Are we consuming too much?
-
Arrow, K., P. Dasgupta, L. Goulder, G. Daily, P. Ehrlich, G. Heal, S. Levin, K.-G. Mäler, S. Schneider, D. Starrett, and B. Walker. 2004. American economic association: Are we consuming too much? Journal of Economic Perspectives 18(3):147-172.
-
(2004)
Journal of Economic Perspectives
, vol.18
, Issue.3
, pp. 147-172
-
-
Arrow, K.1
Dasgupta, P.2
Goulder, L.3
Daily, G.4
Ehrlich, P.5
Heal, G.6
Levin, S.7
Mäler, K.-G.8
Schneider, S.9
Starrett, D.10
Walker, B.11
-
3
-
-
33947703186
-
Ethanol reshapes the corn market
-
Baker, A., and S. Zahniser. 2006. Ethanol reshapes the corn market. Amber Waves 4(2):30-35.
-
(2006)
Amber Waves
, vol.4
, Issue.2
, pp. 30-35
-
-
Baker, A.1
Zahniser, S.2
-
4
-
-
0001972558
-
The simple analytics of welfare maximization
-
Bator, F. M. 1957. The simple analytics of welfare maximization. American Economic Review 47(1):22-59.
-
(1957)
American Economic Review
, vol.47
, Issue.1
, pp. 22-59
-
-
Bator, F.M.1
-
5
-
-
84872978573
-
Nutrient uptake, partitioning, and remobilization in modern, transgenic insect-protected maize hybrids
-
Bender, R. R., J. W. Haegele, M. L. Ruffo, and F. E. Below. 2013. Nutrient uptake, partitioning, and remobilization in modern, transgenic insect-protected maize hybrids. Agronomy Journal 105 (1):161-170. http://dx.doi.org/10.2134/agronj2012.0352.
-
(2013)
Agronomy Journal
, vol.105
, Issue.1
, pp. 161-170
-
-
Bender, R.R.1
Haegele, J.W.2
Ruffo, M.L.3
Below, F.E.4
-
6
-
-
84896965179
-
-
Minnesota Department of Agriculture, St. Paul, Minnesota, USA. [online]
-
Bierman, P., C. Rosen, R. Venterea, and J. Lamb. 2011. Survey of nitrogen fertilizer use on corn in Minnesota. Minnesota Department of Agriculture, St. Paul, Minnesota, USA. [online] URL: http://www.mda.state.mn.us/protecting/cleanwaterfund/∼/ media/C0D97703C7A84E74936431110A5FE897.
-
(2011)
Survey of nitrogen fertilizer use on corn in Minnesota
-
-
Bierman, P.1
Rosen, C.2
Venterea, R.3
Lamb, J.4
-
7
-
-
84923584890
-
A sustainability framework for assessing trade-offs in ecosystem services
-
Cavender-Bares, J., S. Polasky, E. King, and P. Balvanera. 2015. A sustainability framework for assessing trade-offs in ecosystem services. Ecology and Society 20(1): 17. http://dx.doi.org/10.5751/ ES-06917-200117.
-
(2015)
Ecology and Society
, vol.20
, Issue.1
, pp. 17
-
-
Cavender-Bares, J.1
Polasky, S.2
King, E.3
Balvanera, P.4
-
8
-
-
84923596809
-
-
June crop report. U.S. Department of Agriculture, Washington, D.C., USA. [online]
-
Crop Reporting Board, Statistical Reporting Service. 1975. June crop report. U.S. Department of Agriculture, Washington, D.C., USA. [online] URL: http://usda01.library.cornell.edu/usda/nass/ Acre//1970s/1975/Acre-06-30-1975.pdf.
-
(1975)
-
-
-
9
-
-
84867346140
-
Increasing cropping system diversity balances productivity, profitability and environmental health
-
Davis, A. S., J. D. Hill, C. A. Chase, A. M. Johanns, and M. Liebman. 2012. Increasing cropping system diversity balances productivity, profitability and environmental health. PLoS One 7(10):e47149. http://dx.doi.org/10.1371/journal.pone.0047149.
-
(2012)
PLoS One
, vol.7
, Issue.10
-
-
Davis, A.S.1
Hill, J.D.2
Chase, C.A.3
Johanns, A.M.4
Liebman, M.5
-
10
-
-
49649095625
-
Spreading dead zones and consequences for marine ecosystems
-
Diaz, R. J., and R. Rosenberg. 2008. Spreading dead zones and consequences for marine ecosystems. Science 321(5891):926-929. http://dx.doi.org/10.1126/science.1156401.
-
(2008)
Science
, vol.321
, Issue.5891
, pp. 926-929
-
-
Diaz, R.J.1
Rosenberg, R.2
-
11
-
-
0036162068
-
Nitrogen management strategies to reduce nitrate leaching in tile-drained midwestern soils
-
Dinnes, D. L., D. L. Karlen, D. B. Jaynes, T. C. Kaspar, J. L. Hatfield, T. S. Colvin, and C. A. Cambardella. 2002. Nitrogen management strategies to reduce nitrate leaching in tile-drained midwestern soils. Agronomy Journal 94(1):153-171. http://dx.doi. org/10.2134/agronj2002.0153.
-
(2002)
Agronomy Journal
, vol.94
, Issue.1
, pp. 153-171
-
-
Dinnes, D.L.1
Karlen, D.L.2
Jaynes, D.B.3
Kaspar, T.C.4
Hatfield, J.L.5
Colvin, T.S.6
Cambardella, C.A.7
-
12
-
-
34250895444
-
How climate controls the flux of nitrogen by the Mississippi River and the development of hypoxia in the Gulf of Mexico
-
Donner, S. D., and D. Scavia. 2007. How climate controls the flux of nitrogen by the Mississippi River and the development of hypoxia in the Gulf of Mexico. Limnology and Oceanography 52 (2):856-861. http://dx.doi.org/10.4319/lo.2007.52.2.0856.
-
(2007)
Limnology and Oceanography
, vol.52
, Issue.2
, pp. 856-861
-
-
Donner, S.D.1
Scavia, D.2
-
13
-
-
84923568724
-
-
data. table: Extension of data.frame. R package version 1.8.8. The R Project for Statistical Computing, Vienna, Austria.[online]
-
Dowle, M., T. Short, S. Lianoglou, and S. Srinivasan. 2013. data. table: Extension of data.frame. R package version 1.8.8. The R Project for Statistical Computing, Vienna, Austria.[online] URL: http://CRAN.R-project.org/package=data.table.
-
(2013)
-
-
Dowle, M.1
Short, T.2
Lianoglou, S.3
Srinivasan, S.4
-
14
-
-
0003885287
-
-
FM-1712. File A1-20. Iowa State University Extension and Outreach, Ames, Iowa, USA. [online]
-
Duffy, M. 2013. Estimate costs of crop production in Iowa-2013. FM-1712. File A1-20. Iowa State University Extension and Outreach, Ames, Iowa, USA. [online] URL: http://www2.econ. iastate.edu/faculty/duffy/documents/EstimatedCostsofCropProduction2013. pdf.
-
(2013)
Estimate costs of crop production in Iowa-2013
-
-
Duffy, M.1
-
15
-
-
84923637776
-
-
ArcGIS desktop: release 10. ESRI, Redlands, California, USA
-
Environmental Systems Research Institute (ESRI). 2010. ArcGIS desktop: release 10. ESRI, Redlands, California, USA.
-
(2010)
-
-
-
17
-
-
84923549705
-
-
Iowa Geological Survey, Iowa City, Iowa, USA. online [URL]
-
Giglierano, J. D., and M. Mohan. 1990. State and county boundaries of the state of Iowa. Iowa Department of Natural Resources, Iowa Geological Survey, Iowa City, Iowa, USA. online [URL]: http://ftp.igsb.uiowa.edu/gis_library/IA_State/ Admin_Political_Boundary/county.zip.
-
(1990)
State and county boundaries of the state of Iowa. Iowa Department of Natural Resources
-
-
Giglierano, J.D.1
Mohan, M.2
-
18
-
-
80052324819
-
Fertilizing nature: A tragedy of excess in the commons
-
e1001124
-
Good, A. G., and P. H. Beatty. 2011. Fertilizing nature: a tragedy of excess in the commons. PLoS Biology 9(8):e1001124. http://dx.doi.org/10.1371/journal.pbio.1001124.
-
(2011)
PLoS Biology
, vol.9
, Issue.8
-
-
Good, A.G.1
Beatty, P.H.2
-
19
-
-
84873684747
-
-
R package version 0.4-6.4. The R Project for Statistical Computing, Vienna, Austria. [online]
-
Grothendieck, G. 2012. Sqldf: perform SQL selects on R data frames. R package version 0.4-6.4. The R Project for Statistical Computing, Vienna, Austria. [online] URL: http://CRAN.Rproject. org/package=sqldf.
-
(2012)
Sqldf: Perform SQL selects on R data frames
-
-
Grothendieck, G.1
-
20
-
-
0036889335
-
Adaptation and evaluation of the CROPGRO-soybean model to predict regional yield and production. Agriculture
-
Jagtap, S. S., and J. W. Jones. 2002. Adaptation and evaluation of the CROPGRO-soybean model to predict regional yield and production. Agriculture, Ecosystems & Environment 93(1):73-85. http://dx.doi.org/10.1016/S0167-8809(01)00358-9.
-
(2002)
Ecosystems & Environment
, vol.93
, Issue.1
, pp. 73-85
-
-
Jagtap, S.S.1
Jones, J.W.2
-
21
-
-
84862205831
-
Uncertainty in ecosystem services valuation and implications for assessing land use tradeoffs: An agricultural case study in the Minnesota River Basin
-
Johnson, K. A., S. Polasky, E. Nelson, and D. Pennington. 2012. Uncertainty in ecosystem services valuation and implications for assessing land use tradeoffs: an agricultural case study in the Minnesota River Basin. Ecological Economics 79:71-79. http:// dx.doi.org/10.1016/j.ecolecon.2012.04.020.
-
(2012)
Ecological Economics
, vol.79
, pp. 71-79
-
-
Johnson, K.A.1
Polasky, S.2
Nelson, E.3
Pennington, D.4
-
22
-
-
0037236631
-
The DSSAT cropping system model
-
Jones, J. W., G. Hoogenboom, C. H. Porter, K. J. Boote, W. D. Batchelor, L. A. Hunt, P. W. Wilkens, U. Singh, A. J. Gijsman, and J. T. Ritchie. 2003. The DSSAT cropping system model. European Journal of Agronomy 18(3):235-265. http://dx.doi. org/10.1016/S1161-0301(02)00107-7.
-
(2003)
European Journal of Agronomy
, vol.18
, Issue.3
, pp. 235-265
-
-
Jones, J.W.1
Hoogenboom, G.2
Porter, C.H.3
Boote, K.J.4
Batchelor, W.D.5
Hunt, L.A.6
Wilkens, P.W.7
Singh, U.8
Gijsman, A.J.9
Ritchie, J.T.10
-
23
-
-
84906483033
-
Landlabs: A new approach to creating agricultural enterprises that meet the triple bottom line
-
Jordan, N., L. A. Schulte, C. Williams, D. Mulla, D. Pitt, C. S. Slotterback, R. Jackson, D. Landis, B. Dale, D. Becker, M. Rickenbach, M. Helmers, and B. Bringi. 2013. Landlabs: a new approach to creating agricultural enterprises that meet the triple bottom line. Journal of Higher Education, Outreach & Engagement 17(4):175-200.
-
(2013)
Journal of Higher Education, Outreach & Engagement
, vol.17
, Issue.4
, pp. 175-200
-
-
Jordan, N.1
Schulte, L.A.2
Williams, C.3
Mulla, D.4
Pitt, D.5
Slotterback, C.S.6
Jackson, R.7
Landis, D.8
Dale, B.9
Becker, D.10
Rickenbach, M.11
Helmers, M.12
Bringi, B.13
-
24
-
-
84868559674
-
Linking water quality and well-being for improved assessment and valuation of ecosystem services
-
Keeler, B. L., S. Polasky, K. A. Brauman, K. A. Johnson, J. C. Finlay, A. O’Neill, K. Kovacs, and B. Dalzell. 2012. Linking water quality and well-being for improved assessment and valuation of ecosystem services. Proceedings of the National Academy of Sciences of the United States of America 109(45):18619-18624. http://dx.doi.org/10.1073/pnas.1215991109.
-
(2012)
Proceedings of the National Academy of Sciences of the United States of America
, vol.109
, Issue.45
, pp. 18619-18624
-
-
Keeler, B.L.1
Polasky, S.2
Brauman, K.A.3
Johnson, K.A.4
Finlay, J.C.5
O’neill, A.6
Kovacs, K.7
Dalzell, B.8
-
26
-
-
34248577243
-
Cross-sector relationships between the corn feed grains and livestock and poultry economies
-
Marsh, J. M. 2007. Cross-sector relationships between the corn feed grains and livestock and poultry economies. Journal of Agricultural and Resource Economics 32(1):93-114.
-
(2007)
Journal of Agricultural and Resource Economics
, vol.32
, Issue.1
, pp. 93-114
-
-
Marsh, J.M.1
-
27
-
-
15044362296
-
Future directions of precision agriculture
-
McBratney, A., B. Whelan, T. Ancev, and J. Bouma. 2005. Future directions of precision agriculture. Precision Agriculture 6 (1):7-23. http://dx.doi.org/10.1007/s11119-005-0681-8.
-
(2005)
Precision Agriculture
, vol.6
, Issue.1
, pp. 7-23
-
-
McBratney, A.1
Whelan, B.2
Ancev, T.3
Bouma, J.4
-
29
-
-
84923589476
-
-
DNR Data Deli. Minnesota Department of Natural Resources, St. Paul, Minnesota, USA. online [URL]
-
Minnesota Department of Natural Resources. 2003. Minnesota county boundaries. DNR Data Deli. Minnesota Department of Natural Resources, St. Paul, Minnesota, USA. online [URL]: http://deli.dnr.state.mn.us/.
-
(2003)
Minnesota county boundaries
-
-
-
30
-
-
84892262722
-
Impacts of present and future climate change and climate variability on agriculture in the temperate regions: North America
-
Motha, R. P., and W. Baier. 2005. Impacts of present and future climate change and climate variability on agriculture in the temperate regions: North America. Climatic Change 70 (1-2):137-164. http://dx.doi.org/10.1007/s10584-005-5940-1.
-
(2005)
Climatic Change
, vol.70
, Issue.1-2
, pp. 137-164
-
-
Motha, R.P.1
Baier, W.2
-
31
-
-
84867333091
-
Closing yield gaps through nutrient and water management
-
Mueller, N. D., J. S. Gerber, M. Johnston, D. K. Ray, N. Ramankutty, and J. A. Foley. 2012. Closing yield gaps through nutrient and water management. Nature 490(7419):254-257. http://dx.doi.org/10.1038/nature11420.
-
(2012)
Nature
, vol.490
, Issue.7419
, pp. 254-257
-
-
Mueller, N.D.1
Gerber, J.S.2
Johnston, M.3
Ray, D.K.4
Ramankutty, N.5
Foley, J.A.6
-
32
-
-
84923622428
-
-
2009. 2007 Census of agriculture. Volume 1. Geographic area series. Part 51. U.S. Department of Agriculture, Washington, D.C., USA. [online]
-
National Agricultural Statistics Service. 2009. 2007 Census of agriculture. Volume 1. Geographic area series. Part 51. U.S. Department of Agriculture, Washington, D.C., USA. [online] URL: http://www.agcensus.usda.gov/Publications/2007/Full_Report/ usv1.pdf.
-
-
-
-
33
-
-
84923606622
-
-
Statistics of fertilizers and pesticides. Pages XIV-1-XIV-22 in Agriculture statistics. U.S. Department of Agriculture, Washington, D.C., USA
-
National Agricultural Statistics Service. 2011. Statistics of fertilizers and pesticides. Pages XIV-1-XIV-22 in Agriculture statistics. U.S. Department of Agriculture, Washington, D.C., USA.
-
(2011)
-
-
-
34
-
-
84923570743
-
-
012b. Corn for grain 2012 yield harvested per acre by county for selected states. U.S. Department of Agriculture, Washington, D.C., USA. online [URL]
-
National Agricultural Statistics Service. 2012b. Corn for grain 2012 yield harvested per acre by county for selected states. U.S. Department of Agriculture, Washington, D.C., USA. online [URL]: http://www.nass.usda.gov/Charts_and_Maps/Crops_County/ pdf/CR-YI12-RGBChor.pdf.
-
-
-
-
35
-
-
84923555079
-
-
2012a. CropScape— cropland data layer. U.S. Department of Agriculture, Washington, D.C., USA. [online]
-
National Agricultural Statistics Service. 2012a. CropScape— cropland data layer. U.S. Department of Agriculture, Washington, D.C., USA. [online] URL: http://nassgeodata.gmu. edu/CropScape/.
-
-
-
-
36
-
-
84923629351
-
-
Quick stats. National Agriculture Statistics Service, Washington, D.C., USA. [online]
-
National Agriculture Statistics Service. 2012c. Quick stats. National Agriculture Statistics Service, Washington, D.C., USA. [online] URL: http://quickstats.nass.usda.gov.
-
(2012)
-
-
-
37
-
-
84923621580
-
-
The national map smallscale collection. U.S. Geological Survey, Reston, Virginia, USA. online [URL]
-
National Atlas of the United States. 2012. The national map smallscale collection. U.S. Geological Survey, Reston, Virginia, USA. online [URL]: http://nationalatlas.gov/atlasftp-1m.html.
-
(2012)
-
-
-
38
-
-
33845796238
-
Vulnerability of shallow groundwater and drinking-water wells to nitrate in the U.S
-
Nolan, B. T., and K. J. Hitt. 2006. Vulnerability of shallow groundwater and drinking-water wells to nitrate in the U.S. Environmental Science & Technology 40(24):7834-7840. http://dx. doi.org/10.1021/es060911u.
-
(2006)
Environmental Science & Technology
, vol.40
, Issue.24
, pp. 7834-7840
-
-
Nolan, B.T.1
Hitt, K.J.2
-
39
-
-
0036851692
-
Detection of phosphorus and nitrogen deficiencies in corn using spectral radiance measurements
-
Osborne, S. L., J. S. Schepers, D. D. Francis, and M. R. Schlemmer. 2002. Detection of phosphorus and nitrogen deficiencies in corn using spectral radiance measurements. Agronomy Journal 94 (6):1215-1221. http://dx.doi.org/10.2134/agronj2002.1215.
-
(2002)
Agronomy Journal
, vol.94
, Issue.6
, pp. 1215-1221
-
-
Osborne, S.L.1
Schepers, J.S.2
Francis, D.D.3
Schlemmer, M.R.4
-
41
-
-
79960260453
-
Decision-making under great uncertainty: Environmental management in an era of global change
-
Polasky, S., S. R. Carpenter, C. Folke, and B. Keeler. 2011. Decision-making under great uncertainty: environmental management in an era of global change. Trends in Ecology & Evolution 26(8):398-404. http://dx.doi.org/10.1016/j.tree.2011.04.007.
-
(2011)
Trends in Ecology & Evolution
, vol.26
, Issue.8
, pp. 398-404
-
-
Polasky, S.1
Carpenter, S.R.2
Folke, C.3
Keeler, B.4
-
42
-
-
44949215584
-
Where to put things? Spatial land management to sustain biodiversity and economic returns
-
Polasky, S., E. Nelson, J. Camm, B. Csuti, P. Fackler, E. Lonsdorf, C. Montgomery, D. White, J. Arthur, B. Garber-Yonts, R. Haight, J. Kagan, A. Starfield, and C. Tobalske. 2008. Where to put things? Spatial land management to sustain biodiversity and economic returns. Biological Conservation 141(6):1505-1524. http://dx.doi. org/10.1016/j.biocon.2008.03.022.
-
(2008)
Biological Conservation
, vol.141
, Issue.6
, pp. 1505-1524
-
-
Polasky, S.1
Nelson, E.2
Camm, J.3
Csuti, B.4
Fackler, P.5
Lonsdorf, E.6
Montgomery, C.7
White, D.8
Arthur, J.9
Garber-Yonts, B.10
Haight, R.11
Kagan, J.12
Starfield, A.13
Tobalske, C.14
-
43
-
-
73149118544
-
Overview of the University of Minnesota variable input crop management systems (VICMS) trials
-
in J. Raupp, C. Pekrun, M. Oltmanns, and U. Köpke, editors, Scientific Series 1. International Society of Organic Agriculture Research (ISOFAR), Berlin, Germany
-
Porter, P., D. Allan, K. Crookston, M. Harbur, and K. Olson. 2006. Overview of the University of Minnesota variable input crop management systems (VICMS) trials. Pages 99-116 in J. Raupp, C. Pekrun, M. Oltmanns, and U. Köpke, editors. Longterm field experiments in organic farming. Scientific Series 1. International Society of Organic Agriculture Research (ISOFAR), Berlin, Germany.
-
(2006)
Longterm field experiments in organic farming
, pp. 99-116
-
-
Porter, P.1
Allan, D.2
Crookston, K.3
Harbur, M.4
Olson, K.5
-
44
-
-
40849139278
-
When does nitrate become a risk for humans?
-
Powlson, D. S., T. M. Addiscott, N. Benjamin, K. G. Cassman, T. M. de Kok, H. van Grinsven, J.-L. L’Hirondel, A. A. Avery, and C. van Kessel. 2008. When does nitrate become a risk for humans? Journal of Environmental Quality 37(2):291-295. http:// dx.doi.org/10.2134/jeq2007.0177.
-
(2008)
Journal of Environmental Quality
, vol.37
, Issue.2
, pp. 291-295
-
-
Powlson, D.S.1
Addiscott, T.M.2
Benjamin, N.3
Cassman, K.G.4
De Kok, T.M.5
Van Grinsven, H.6
L’hirondel, J.-L.7
Avery, A.A.8
Van Kessel, C.9
-
45
-
-
84923552184
-
-
R: a language and environment for statistical computing. R Project for Statistical Computing, Vienna, Austria. ISBN 3-900051-07-0. [online]
-
R Development Core Team. 2011. R: a language and environment for statistical computing. R Project for Statistical Computing, Vienna, Austria. ISBN 3-900051-07-0. [online] URL: http://www. R-project.org/.
-
(2011)
-
-
-
46
-
-
41049105988
-
Do farmers waste fertilizer? A comparison of ex post optimal nitrogen rates and ex ante recommendations by model, site and year
-
Rajsic, P., and A. Weersink. 2008. Do farmers waste fertilizer? A comparison of ex post optimal nitrogen rates and ex ante recommendations by model, site and year. Agricultural Systems 97(1):56-67. http://dx.doi.org/10.1016/j.agsy.2007.12.001.
-
(2008)
Agricultural Systems
, vol.97
, Issue.1
, pp. 56-67
-
-
Rajsic, P.1
Weersink, A.2
-
47
-
-
84859895859
-
-
Economic Research Report No. (ERR-127)
-
Ribaudo, M., J. Delgado, L. Hansen, M. Livingston, R. Mosheim, and J. Williamson. 2011. Nitrogen in agricultural systems: implications for conservation policy. Economic Research Report No. (ERR-127).
-
(2011)
Nitrogen in agricultural systems: Implications for conservation policy
-
-
Ribaudo, M.1
Delgado, J.2
Hansen, L.3
Livingston, M.4
Mosheim, R.5
Williamson, J.6
-
48
-
-
84923547310
-
-
U.S. Department of Agriculture, Washington, D.C., USA. [online]
-
Economic Research Service, U.S. Department of Agriculture, Washington, D.C., USA. [online] URL: http://www. ers.usda.gov/publications/err-economic-research-report/err127.aspx.
-
-
-
-
49
-
-
0004051114
-
-
Agricultural Economic Report No. 782. Economic Research Service, U.S. Department of Agriculture, Washington, D.C., USA
-
Ribaudo, M. O., R. D. Horan, and M. E. Smith.1999. Economics of water quality protection from nonpoint sources: theory and practice. Agricultural Economic Report No. 782. Economic Research Service, U.S. Department of Agriculture, Washington, D.C., USA.
-
(1999)
Economics of water quality protection from nonpoint sources: Theory and practice
-
-
Ribaudo, M.O.1
Horan, R.D.2
Smith, M.E.3
-
50
-
-
34547112695
-
-
1982-2001. U.S. Geological Survey Scientific Investigations Report 2006-5012. U.S. Geological Survey, Reston, Virginia, USA. [online]
-
Ruddy, B. C., D. L. Lorenz, and D. K. Mueller. 2006. County-level estimates of nutrient inputs to the land surface of the conterminous U.S., 1982-2001. U.S. Geological Survey Scientific Investigations Report 2006-5012. U.S. Geological Survey, Reston, Virginia, USA. [online] URL: http://pubs.usgs.gov/sir/2006/5012/.
-
(2006)
County-level estimates of nutrient inputs to the land surface of the conterminous U.S
-
-
Ruddy, B.C.1
Lorenz, D.L.2
Mueller, D.K.3
-
51
-
-
84906508347
-
The reflective plant breeding paradigm: A robust system of germplasm development to support strategic diversification of agroecosystems
-
Runck, B. C., M. B. Kantar, N. R. Jordan, J. A. Anderson, D. L. Wyse, J. O. Eckberg, R. J. Barnes, C. L. Lehmand, L. R. DeHaane, R. M. Stupara, C. C. Sheaffer, and P. M. Porter. 2014. The reflective plant breeding paradigm: a robust system of germplasm development to support strategic diversification of agroecosystems. Crop Science 45(5):1939–1948. http://dx.doi.org/10.2135/ cropsci2014.03.0195.
-
(2014)
Crop Science
, vol.45
, Issue.5
, pp. 1939-1948
-
-
Runck, B.C.1
Kantar, M.B.2
Jordan, N.R.3
Anderson, J.A.4
Wyse, D.L.5
Eckberg, J.O.6
Barnes, R.J.7
Lehmand, C.L.8
Dehaane, L.R.9
Stupara, R.M.10
Sheaffer, C.C.11
Porter, P.M.12
-
52
-
-
47749095777
-
-
Iowa State University Extension, Des Moines, Iowa, USA
-
Sawyer, J., E. Nafziger, G. Randall, L. Bundy, G. Rehm, and B. Joern. 2006. Concepts and rationale for regional nitrogen rate guidelines for corn concepts and rationale for regional nitrogen rate guidelines for corn. Iowa State University Extension, Des Moines, Iowa, USA.
-
(2006)
Concepts and rationale for regional nitrogen rate guidelines for corn concepts and rationale for regional nitrogen rate guidelines for corn
-
-
Sawyer, J.1
Nafziger, E.2
Randall, G.3
Bundy, L.4
Rehm, G.5
Joern, B.6
-
53
-
-
84923533460
-
-
U.S. Department of Agriculture, Washington, D.C., USA. [online]
-
Soil Conservation Service. 1961. Agricultural handbook No. 210: land-capability classification. U.S. Department of Agriculture, Washington, D.C., USA. [online] URL: http://www.nrcs.usda. gov/internet/fse_documents/nrcs142p2_052290.pdf.
-
(1961)
Agricultural handbook No. 210: Land-capability classification
-
-
-
54
-
-
84879516179
-
-
Natural Resources Conservation Service, U.S. Department of Agriculture. Washington, D.C., USA. [online]
-
Soil Survey Staff. 2013. Web soil survey. Natural Resources Conservation Service, U.S. Department of Agriculture. Washington, D.C., USA. [online] URL: http://websoilsurvey. nrcs.usda.gov/.
-
(2013)
Web soil survey
-
-
-
55
-
-
0037532738
-
Linking landscape and water quality in the Mississippi river basin for 200 years
-
Turner, R. E., and N. N. Rabalais. 2003. Linking landscape and water quality in the Mississippi river basin for 200 years. BioScience 53(6):563-572. http://dx.doi.org/10.1641/0006-3568 (2003)053[0563:LLAWQI]2.0.CO;2.
-
(2003)
BioScience
, vol.53
, Issue.6
, pp. 563-572
-
-
Turner, R.E.1
Rabalais, N.N.2
-
56
-
-
0033527009
-
The relative influences of nitrogen and phosphorus on oceanic primary production
-
Tyrrell, T. 1999. The relative influences of nitrogen and phosphorus on oceanic primary production. Nature 400 (6744):525-531. http://dx.doi.org/10.1038/22941.
-
(1999)
Nature
, vol.400
, Issue.6744
, pp. 525-531
-
-
Tyrrell, T.1
-
59
-
-
79961232797
-
The split-apply-combine strategy for data analysis
-
[online]
-
Wickham, H. 2011. The split-apply-combine strategy for data analysis. Journal of Statistical Software 40(1):1-29. [online] URL: http://www.jstatsoft.org/v40/i01.
-
(2011)
Journal of Statistical Software
, vol.40
, Issue.1
, pp. 1-29
-
-
Wickham, H.1
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