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Table representation of search results timeline featuring number of search results per year.

Year Number of Results
2009 1
2010 3
2011 2
2012 3
2013 2
2014 1
2015 3
2017 4
2019 4
2020 3
2021 0
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23 results
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Page 1
Corn stover harvest N and energy budgets in central Iowa.
Malone RW, Herbstritt S, Ma L, Richard TL, Cibin R, Gassman PW, Zhang HH, Karlen DL, Hatfield JL, Obrycki JF, Helmers MJ, Jaynes DB, Kaspar TC, Parkin TB, Fang QX. Malone RW, et al. Among authors: helmers mj. Sci Total Environ. 2019 May 1;663:776-792. doi: 10.1016/j.scitotenv.2019.01.328. Epub 2019 Jan 27. Sci Total Environ. 2019. PMID: 30738259
Prairie strips improve biodiversity and the delivery of multiple ecosystem services from corn-soybean croplands.
Schulte LA, Niemi J, Helmers MJ, Liebman M, Arbuckle JG, James DE, Kolka RK, O'Neal ME, Tomer MD, Tyndall JC, Asbjornsen H, Drobney P, Neal J, Van Ryswyk G, Witte C. Schulte LA, et al. Among authors: helmers mj. Proc Natl Acad Sci U S A. 2017 Oct 17;114(42):11247-11252. doi: 10.1073/pnas.1620229114. Epub 2017 Oct 2. Proc Natl Acad Sci U S A. 2017. PMID: 28973922 Free PMC article.
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