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Comparison of crop management strategies involving crop genotype and weed management practices in conventional and more diverse cropping systems

  • Robin Gómez (a1), Matt Liebman (a2), David N. Sundberg (a2) and Craig A. Chase (a3)

Cropping systems that include forage legumes and small grains in addition to corn (Zea mays L.) and soybean [Glycine max (L.) Merr.] can achieve similar or higher crop productivity and economic return than simpler corn–soybean rotations. We hypothesized that this rotation effect occurs regardless of the crop genotype planted and the herbicide and cultivation regime selected for weed management. To test this hypothesis, we conducted a 3-year experiment that compared three cropping systems: a conventional 2-year corn–soybean rotation, a 3-year corn–soybean–oat (Avena sativa L.)/red clover (Trifolium pretense L.) rotation, and a 4-year corn–soybean–oat/alfalfa–alfalfa (Medicago sativa L.) rotation. Within each cropping system, two contrasting sets of management strategies were used: (i) genetically engineered corn with resistance to insect pests (Ostrinia nubilalis Hübner and Diabrotica spp.) plus the broadcast application of pre-emergence herbicides, followed in the rotation by a genetically engineered soybean variety with resistance to the herbicide glyphosate plus the post-emergence broadcast application of glyphosate; and (ii) non-genetically engineered corn plus the banded application of post-emergence herbicides, followed in the rotation by a non-genetically engineered soybean and banded application of several post-emergence herbicides. The two management strategies were identified as ‘GE’ and ‘non-GE.’ Corn yield was higher in the 3-year (12.51Mgha−1) and 4-year (12.79Mgha−1) rotations than in the conventional 2-year (12.16Mgha−1) rotation, and was also 2% higher with the GE strategy than with the non-GE strategy. Soybean yield was similar among rotation systems in 2008, but higher in the 3- and 4-year systems than the 2-year rotation in 2009 and 2010. Soybean yield was similar between management strategies in 2008, but higher in the GE strategy in 2009, and similar between strategies in the 3- and 4-year rotations in 2010. Increases in rotation length were accompanied by 88–91% reductions in synthetic N fertilizer application, and the use of the non-GE rather than the GE strategy was accompanied by a 93% reduction in herbicide active ingredients applied. Averaged over the period of 2008–2010, net returns to land and labor were highest for the 3-year rotation managed with either the GE ($928ha−1yr−1) or non-GE ($936ha−1yr−1) strategies, least in the 2-year rotation managed with the non-GE strategy ($738ha−1yr−1), and intermediate in the other rotation×management combinations. Our results indicate that more diverse crop rotation systems can be as profitable as conventional corn–soybean systems and can provide farmers with greater flexibility in crop management options.

Corresponding author
*Corresponding author. Universidad de Costa Rica, Escuela de Agronomía, San José, Costa Rica.
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1 P.M. Porter , D.R. Huggins , C.A. Perillo , S.R. Quiring , and R.K. Crookston 2003. Organic and other management strategies with two- and four-year crop rotations in Minnesota. Agronomy Journal 95:233244.

3 E.C. Brummer 1998. Diversity, stability, and sustainable American agriculture. Agronomy Journal 90:12.

4 R.J. Cook 2006. Toward cropping systems that enhance productivity and sustainability. Proceedings of the National Academy of Sciences, U.S.A. 103:1838918394.

5 N.L. Hartwig and H.U. Ammon 2002. Cover crops and living mulches. Weed Science 50:688699.

6 J.E. Barbash , G.P. Thelin , D.W. Kolpin , and R.J. Gilliom 2001. Major herbicides in ground water. Journal of Environmental Quality 30:831845.

7 J. Liu , L. You , M. Amini , M. Obersteiner , M. Herrero , A.J.B. Zehnder , and H. Yang 2010. A high-resolution assessment on global nitrogen flows in cropland. Proceedings of the National Academy of Sciences, U.S.A. 107:80358040.

11 C. Francis , G. Lieblein , S. Gliessman , T.A. Breland , N. Creamer , R. Harwood , L. Salomonsson , J. Helenius , D. Rickerl , R. Salvador , M. Wiedenhoeft , S. Simmons , P. Allen , M. Altieri , C. Flora , and R. Poincelot 2003. Agroecology: The Ecology of Food Systems. Journal of Sustainable Agriculture 22:99118.

12 M. Liebman and E.R. Gallandt 1997. Many little hammers: Ecological management of crop-weed interactions. In L.E. Jackson (ed.). Ecology in Agriculture. Academic Press, San Diego, CA. p. 291343.

13 G.P. Robertson and S.M. Swinton 2005. Reconciling agricultural productivity and environmental integrity: A grand challenge for agriculture. Frontiers in Ecology and the Environment 3:3846.

14 R.L. Anderson 2007. Managing weeds with a dualistic approach of prevention and control. A review. Agronomy for Sustainable Development 27:1318.

15 C. Shennan 2008. Biotic interactions, ecological knowledge, and agriculture. Philosophical Transactions of the Royal Society B: Biological Sciences 363:717739.

16 P.C. Ronald 2011. Plant genetics, sustainable agriculture and global food security. Genetics 188:1120.

18 D.A. Mortensen , J.F. Egan , B.D. Maxwell , M.R. Ryan , and R.G. Smith 2012. Navigating a critical juncture for sustainable weed management. Bioscience 62:7584.

19 A.J. Gassmann , J.L. Petzold-Maxwell , R.S. Keweshan , and M.W. Dunbar 2011. Field-evolved resistance to Bt maize by western corn rootworm. PLoS ONE 6(7):e22629. doi:10.1371/journal.pone.0022629.

20 M.A. Altieri 1999. The ecological role of biodiversity in agroecosystems. Agriculture, Ecosystems & Environment 74:1931.

21 M. Liebman and A. S. Davis 2000. Integration of soil, crop and weed management in low-external-input farming systems. Weed Research 40:2747.

22 B. Raimbault and T. Vyn 1991. Crop rotation and tillage effects on corn growth and soil structural stability. Agronomy Journal 83:979985.

23 L.E. Drinkwater , P. Wagoner , and M. Sarrantonio 1998. Legume-based cropping systems have reduced carbon and nitrogen losses. Nature 396:262265.

24 D.L. Dinnes , 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 94:153171.

25 C. Campbell and R. Zentner 1993. Soil organic matter as influenced by crop rotations and fertilization. Soil Science Society of America Journal 57:10341040.

26 W.E. Riedell , J.L. Pikul , A.A. Jaradat , and T.E. Schumacher 2009. Crop rotation and nitrogen input effects on soil fertility, maize mineral nutrition, yield, and seed composition. Agronomy Journal 101:870879.

27 D. Tilman , K.G. Cassman , P.A. Matson , R. Naylor , and S. Polasky 2002. Agricultural sustainability and intensive production practices. Nature 418:671677.

28 R. Ghorbani , S. Wilcockson , A. Koocheki , and C. Leifert 2008. Soil management for sustainable crop disease control: A review. Environmental Chemistry Letters 6:149.

29 E. Dyck and M. Liebman 1994. Soil fertility management as a factor in weed control: The effect of crimson clover residue, synthetic nitrogen fertilizer and their interaction on emergence and early growth of lambs quarters and sweet corn. Plant and Soil 167:227237.

30 R.L. Anderson 2005. A multi-tactic approach to manage weed population dynamics in crop rotations. Agronomy Journal 97:15791583.

31 D.A. Bossio , K.M. Scow , N. Gunapala , and K.J. Graham 1998. Determinants of soil microbial communities: Effects of agricultural management, season, and soil type on phospholipid fatty acid profiles. Microbial Ecology 36:112.

32 S.P. Deng , J.M. Moore , and M.A. Tabatabai 2000. Characterization of active nitrogen pools in soils under different cropping systems. Biology and Fertility of Soils 32:302309.

33 M.J. Cruse , M. Liebman , D.R. Raman , and M.H. Wiedenhoeft 2010. Fossil energy use in conventional and low-external-input cropping systems. Agronomy Journal 102:934941.

34 D.W. Archer , A.A. Jaradat , J.M.F. Johnson , S.L. Weyers , R.W. Gesch , F. Forcella , and H.K. Kludze 2007. Crop productivity and economics during the transition to alternative cropping systems. Agronomy Journal 99:15381547.

35 J.-P. Chavas , J.L. Posner , and J.L. Hedtcke 2009. Organic and conventional production systems in the Wisconsin integrated cropping systems trial: II. Economic and risk analysis 1993–2006. Agronomy Journal 101:288295.

37 M. Liebman , L.R. Gibson , D.N. Sundberg , A.H. Heggenstaller , P.R. Westerman , C.A. Chase , R.G. Hartzler , F.D. Menalled , A.S. Davis , and P.M. Dixon 2008. Agronomic and economic performance characteristics of conventional and low-external-input cropping systems in the central Corn Belt. Agronomy Journal 100:600610.

38 D.B. Jaynes , D.L. Dinnes , D.W. Meek , D.L. Karlen , C.A. Cambardella , and T.S. Colvin 2004. Using the late spring nitrate test to reduce nitrate loss within a watershed. Journal of Environmental Quality 33:669677.

47 L.J. Rew , B. Whelani , and A. Mc Bratney 2000. Does kriging predict weed distributions accurately enough for site-specific weed control? Weed Research 41:245263.

48 D.M. Weller , J.M. Raaijmakers , and L.S. Tomashow 2002. Microbial populations responsible for specific soil suppressiveness to plant pathogens. Annual Review of Phytopathology 40:309348.

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