Appendix

Articles analyzed in “An Examination of Search Methodologies of Meta-Analyses in Peer-Reviewed Articles Related to Crop Science.”

  1. Abalos D, Jeffery S, Drury CF, Wagner-Riddle C. 2016. Improving fertilizer management in the U.S. and Canada for N2O mitigation: understanding potential positive and negative side-effects on corn yields. Agriculture, Ecosystems & Environment 221:214-221.DOI: 10.1016/j.agee.2016.01.044.
  2. Abalos D, Jeffery S, Sanz-Cobena A, Guardia G, Vallejo A. 2014. Meta-analysis of the effect of urease and nitrification inhibitors on crop productivity and nitrogen use efficiency. Agriculture, Ecosystems & Environment 189:136-144.DOI: 10.1016/j.agee.2014.03.036.
  3. Aguilera E, Lassaletta L, Gattinger A, Gimeno BS. 2013. Managing soil carbon for climate change mitigation and adaptation in Mediterranean cropping systems: a meta-analysis. Agriculture, Ecosystems & Environment 168:25-36.DOI: 10.1016/j.agee.2013.02.003.
  4. Aguilera E, Lassaletta L, Sanz-Cobena A, Garnier J, Vallejo A. 2013. The potential of organic fertilizers and water management to reduce N2O emissions in Mediterranean climate cropping systems. A review. Agriculture, Ecosystems & Environment 164:32-52.DOI: 10.1016/j.agee.2012.09.006.
  5. Antle JM, Ogle SM. 2012. Influence of soil C, N2O and fuel use on GHG mitigation with no-till adoption. Climatic Change 111(3/4):609-625.DOI: 10.1007/s10584-011-0193-7.
  6. Areal FJ, Riesgo L, Rodríguez-Cerezo E. 2013. Economic and agronomic impact of commercialized GM crops: a meta-analysis. Journal of Agricultural Science 151(1):7-33.DOI: 10.1017/S0021859612000111.
  7. Banger K, Tian H, Lu C. 2012. Do nitrogen fertilizers stimulate or inhibit methane emissions from rice fields? Global Change Biology 18(10):3259-3267.DOI: 10.1111/j.1365-2486.2012.02762.x.
  8. Barral MP, Benayas JMR, Meli P, Maceira NO. 2015. Quantifying the impacts of ecological restoration on biodiversity and ecosystem services in agroecosystems: a global meta-analysis. Agriculture, Ecosystems & Environment 202:223-231.DOI: 10.1016/j.agee.2015.01.009.
  9. Basche AD, Miguez FE, Kaspar TC, Castellano MJ. 2014. Do cover crops increase or decrease nitrous oxide emissions? A meta-analysis. Journal of Soil and Water Conservation (Ankeny) 69(6):471-482.DOI: 10.2489/jswc.69.6.471.
  10. Batáry P, Báldi A, Kleijn D, Tscharntke T. 2011. Landscape-moderated biodiversity effects of agri-environmental management: a meta-analysis. Proceedings of the Royal Society of London. Series B, Biological Sciences 278(1713):1894-1902.DOI: 10.1098/rspb.2010.1923.
  11. Bayala J, Sileshi GW, Coe R, Kalinganire A, Tchoundjeu Z, Sinclair F, Garrity D. 2012. Cereal yield response to conservation agriculture practices in drylands of West Africa: a quantitative synthesis. Journal of Arid Environments 78:13-25.DOI: 10.1016/j.jaridenv.2011.10.011.
  12. Beenhouwer Md, Aerts R, Honnay O. 2013. A global meta-analysis of the biodiversity and ecosystem service benefits of coffee and cacao agroforestry. Agriculture, Ecosystems & Environment 175:1-7.DOI: 10.1016/j.agee.2013.05.003.
  13. Bell LW, Moore AD, Kirkegaard JA. 2014. Evolution in crop-livestock integration systems that improve farm productivity and environmental performance in Australia. European Journal of Agronomy 57:10-20.DOI: 10.1016/j.eja.2013.04.007.
  14. Belova A, Narayan T, Olkin I. 2013. Methyl bromide alternatives for strawberry and tomato pre-plant uses: a meta-analysis. Crop Protection 54:1-14.DOI: 10.1016/j.cropro.2013.07.011.
  15. Biederman LA, Harpole WS. 2013. Biochar and its effects on plant productivity and nutrient cycling: a meta-analysis. GCB Bioenergy 5(2):202-214.DOI: 10.1111/gcbb.12037.
  16. Bouma JA, Hegde SS, Lasage R. 2016. Assessing the returns to water harvesting: a meta-analysis. Agricultural Water Management 163:100-109.DOI: 10.1016/j.agwat.2015.08.012.
  17. Brandt K, Leifert C, Sanderson R, Seal CJ. 2011. Agroecosystem management and nutritional quality of plant foods: the case of organic fruits and vegetables. Critical Reviews in Plant Sciences 30(1/2):177-197.DOI: 10.1080/07352689.2011.554417.
  18. Brouder SM, Gomez-Macpherson H. 2014. The impact of conservation agriculture on smallholder agricultural yields: a scoping review of the evidence. Agriculture, Ecosystems & Environment 187:11-32.DOI: 10.1016/j.agee.2013.08.010.
  19. Burzaco JP, Ciampitti IA, Vyn TJ. 2014. Nitrapyrin impacts on maize yield and nitrogen use efficiency with spring-applied nitrogen: field studies vs. meta-analysis comparison. Agronomy Journal 106(2):753-760.DOI: 10.2134/agronj2013.0043.
  20. Busanello M, Velho JP, Tambara AAC, Alessio DRM, Haygert-Velho IMP, ThalerNeto A. 2016. A meta-analysis of in situ degradability of corn grains and non-starch energy sources found in Brazil. African Journal of Agricultural Research 11(21):1902-1907.
  21. Challinor AJ, Watson J, Lobell DB, Howden SM, Smith DR, Chhetri N. 2014. A meta-analysis of crop yield under climate change and adaptation. Nature Climate Change 4(4):287-291.DOI: 10.1038/nclimate2153.
  22. Chandrasekaran, M, Boughattas S, Hu SJ, Oh SH, Sa T. 2014. A meta-analysis of arbuscular mycorrhizal effects on plants grown under salt stress. Mycorrhiza 24(8):611-625.DOI: 10.1007/s00572-014-0582-7.
  23. Chivenge P, Vanlauwe B, Six J. 2011. Does the combined application of organic and mineral nutrient sources influence maize productivity? A meta-analysis. Plant and Soil 342(1/2):1-30.DOI: 10.1007/s11104-010-0626-5.
  24. Ciocco Cd, Penón E, Coviella C, López S, Díaz-Zorita M, Momo F, Álvarez R. 2011. Nitrogen fixation by soybean in the Pampas: relationship between yield and soil nitrogen balance. Agrochimica 55(6):305-313.
  25. Congreves KA, Smith JM, Németh DD, Hooker DC, EerdLLv. 2014. Soil organic carbon and land use: processes and potential in Ontario's long-term agro-ecosystem research sites. Canadian Journal of Soil Science 94(3):317-336.DOI: 10.4141/CJSS2013-094.
  26. Cooper J, Baranski M, Stewart G, Lange MN, Bàrberi P, Fliessbach A, Peigné J, Berner A, Brock C, Casagrande M et al. . 2016. Shallow non-inversion tillage in organic farming maintains crop yields and increases soil C stocks: a meta-analysis. Agronomy for Sustainable Development 36(1):22-22.DOI: 10.1007/s13593-016-0354-1.
  27. Crowder DW, Northfield TD, Gomulkiewicz R, Snyder WE. 2012. Conserving and promoting evenness: organic farming and fire-based wildland management as case studies. Ecology 93(9):2001-2007.DOI: 10.1890/12-0110.1.
  28. Cui Z, Yue S, Wang G, Zhang F, Chen X. 2013. In-season root-zone N management for mitigating greenhouse gas emission and reactive N losses in intensive wheat production. Environmental Science & Technology 47(11):6015-6022.DOI: 10.1021/es4003026.
  29. Daryanto S, Wang LX, Jacinthe PA. 2015. Global synthesis of drought effects on food legume production. PLoS ONE 10(6):e0127401-e0127401.DOI: 10.1371/journal.pone.0127401.
  30. Decock C. 2014. Mitigating nitrous oxide emissions from corn cropping systems in the midwestern U.S.: potential and data gaps. Environmental Science & Technology 48(8):4247-4256.DOI: 10.1021/es4055324.
  31. Diaz DAR, Mengel DB, Lamond RE, Duncan SR, Whitney DA, Maxwell TM. 2012. Meta-analysis of winter wheat response to chloride fertilization in Kansas. Communications in Soil Science and Plant Analysis 43(18):2437-2447.DOI: 10.1080/00103624.2012.708077.
  32. Dickinson D, Balduccio L, Buysse J, Ronsse F, Huylenbroeck Gv, Prins W. 2015. Cost-benefit analysis of using biochar to improve cereals agriculture. GCB Bioenergy 7(4):850-864.DOI: 10.1111/gcbb.12180.
  33. Diehl E, Sereda E, Wolters V, Birkhofer K. 2013. Effects of predator specialization, host plant and climate on biological control of aphids by natural enemies: a meta-analysis. Journal of Applied Ecology 50(1):262-270.DOI: 10.1111/1365-2664.12032.
  34. Dohn J, Dembélé F, Karembé M, Moustakas A, Amévor KA, Hanan NP. 2013. Tree effects on grass growth in savannas: competition, facilitation and the stress-gradient hypothesis. Journal of Ecology (Oxford) 101(1):202-209.DOI: 10.1111/1365-2745.12010.
  35. Donkersley P, Nuyttens D. 2011. A meta analysis of spray drift sampling. Crop Protection 30(7):931-936.DOI: 10.1016/j.cropro.2011.03.020.
  36. Egan JF, Barlow KM, Mortensen DA. 2014. A meta-analysis on the effects of 2,4-D and dicamba drift on soybean and cotton. Weed Science 62(1):193-206.DOI: 10.1614/WS-D-13-00025.1.
  37. Feng J, Chen C, Zhang Y, Song Z, Deng A, Zheng C, Zhang W. 2013. Impacts of cropping practices on yield-scaled greenhouse gas emissions from rice fields in China: a meta-analysis. Agriculture, Ecosystems & Environment 164:220-228.DOI: 10.1016/j.agee.2012.10.009.
  38. Finger R, El-Benni N, Kaphengst T, Evans C, Herbert S, Lehmann B, Morse S, Stupak N. 2011. A meta analysis on farm-level costs and benefits of GM crops. Sustainability 3(5):743-762.DOI: 10.3390/su3050743.
  39. Garratt MPD, Wright DJ, Leather SR. 2011. The effects of farming system and fertilisers on pests and natural enemies: a synthesis of current research. Agriculture, Ecosystems & Environment 141(3/4):261-270.DOI: 10.1016/j.agee.2011.03.014.
  40. Geisseler D, Scow KM. 2014. Long-term effects of mineral fertilizers on soil microorganisms - a review. Soil Biology & Biochemistry 75:54-63.DOI: 10.1016/j.soilbio.2014.03.023.
  41. Giraud G. 2013. The world market of fragrant rice, main issues and perspectives. International Food and Agribusiness Management Review 16(2):1-20.
  42. González-Sánchez EJ, Ordóñez-Fernández R, Carbonell-Bojollo R, Veroz-González O, Gil-Ribes JA. 2012. Meta-analysis on atmospheric carbon capture in Spain through the use of conservation agriculture. Soil & Tillage Research 122:52-60.DOI: 10.1016/j.still.2012.03.001.
  43. Van Groenigen KJ, Kessel Cv, Hungate BA. 2013. Increased greenhouse-gas intensity of rice production under future atmospheric conditions. Nature Climate Change 3(3):288-291.DOI: 10.1038/nclimate1712.
  44. Herrera JM, Verhulst N, Trethowan RM, Stamp P, Govaerts B. 2013. Insights into genotype × tillage interaction effects on the grain yield of wheat and maize. Crop Science 53(5):1845-1859.DOI: 10.2135/cropsci2013.01.0071.
  45. Hossard L, Archer DW, Bertrand M, Colnenne-David C, Debaeke P, Ernfors M, Jeuffroy MH, Munier-Jolain N, Nilsson C, Sanford GR et al. . 2016. A meta-analysis of maize and wheat yields in low-input vs. conventional and organic systems. Agronomy Journal 108(3):1155-1167.DOI: 10.2134/agronj2015.0512.
  46. Hu Y, Schraml M, TucherSv, Lia F, Schmidhalter U. 2014. Influence of nitrification inhibitors on yields of arable crops: a meta-analysis of recent studies in Germany. International Journal of Plant Production 8(1):33-50.
  47. Huang J, Han D. 2014. Meta-analysis of influential factors on crop yield estimation by remote sensing. International Journal of Remote Sensing 35(6):2267-2295.DOI: 10.1080/01431161.2014.890761.
  48. Huang M, Zhou X, Cao F, Xia B, Zou Y. 2015. No-tillage effect on rice yield in China: a meta-analysis. Field Crops Research 183:126-137.DOI: 10.1016/j.fcr.2015.07.022.
  49. Huang S, Lv W, Bloszies S, Shi Q, Pan X, Zeng Y. 2016. Effects of fertilizer management practices on yield-scaled ammonia emissions from croplands in China: a meta-analysis. Field Crops Research 192:118-125.DOI: 10.1016/j.fcr.2016.04.023.
  50. Huang S, Sun Y, Zhang W. 2012. Changes in soil organic carbon stocks as affected by cropping systems and cropping duration in China's paddy fields: a meta-analysis. Climatic Change 112(3/4):847-858.DOI: 10.1007/s10584-011-0255-x.
  51. Huang S, Zeng Y, Wu J, Shi Q, Pan X. 2013. Effect of crop residue retention on rice yield in China: a meta-analysis. Field Crops Research 154:188-194.DOI: 10.1016/j.fcr.2013.08.013.
  52. Iverson AL, Marín LE, Ennis KK, Gonthier DJ, Connor-Barrie BT, Remfert JL, Cardinale BJ, Perfecto I. 2014. Do polycultures promote win-wins or trade-offs in agricultural ecosystem services? A meta-analysis. Journal of Applied Ecology 51(6):1593-1602.DOI: 10.1111/1365-2664.12334.
  53. Jeffery S, Verheijen FGA, VeldeMvd, Bastos AC. 2011. A quantitative review of the effects of biochar application to soils on crop productivity using meta-analysis. Agriculture, Ecosystems & Environment 144(1):175-187.DOI: 10.1016/j.agee.2011.08.015.
  54. Kallenbach C, Grandy AS. 2011. Controls over soil microbial biomass responses to carbon amendments in agricultural systems: a meta-analysis. Agriculture, Ecosystems & Environment 144(1):241-252.DOI: 10.1016/j.agee.2011.08.020.
  55. Kaschuk G, Alberton O, Hungria M. 2011. Quantifying effects of different agricultural land uses on soil microbial biomass and activity in Brazilian biomes: inferences to improve soil quality. Plant and Soil 338(1/2):467-481.DOI: 10.1007/s11104-010-0559-z.
  56. Van Kessel C, Venterea R, Six J, Adviento-Borbe MA, Linquist B, GroenigenKJv. 2013. Climate, duration, and N placement determine N2O emissions in reduced tillage systems: a meta-analysis. Global Change Biology 19(1):33-44.DOI: 10.1111/j.1365-2486.2012.02779.x.
  57. Klümper W, Qaim M. 2014. A meta-analysis of the impacts of genetically modified crops. PLoS ONE 9(11):e111629.DOI: 10.1371/journal.pone.0111629.
  58. Knox J, Hess T, Daccache A, Wheeler T. 2012. Climate change impacts on crop productivity in Africa and South Asia. Environmental Research Letters 7(3):034032.DOI: 10.1088/1748-9326/7/3/034032.
  59. Van der Kooi CJ, Reich M, Löw M, KokLJd, Tausz M. 2016. Growth and yield stimulation under elevated CO2 and drought: a meta-analysis on crops. Environmental and Experimental Botany 122:150-157.DOI: 10.1016/j.envexpbot.2015.10.004.
  60. Ladha JK, Reddy CK, Padre AT, Kessel Cv. 2011. Role of nitrogen fertilization in sustaining organic matter in cultivated soils. Journal of Environmental Quality 40(6):1756-1766.DOI: 10.2134/jeq2011.0064.
  61. Lam S, Chen D, Mosier AR, Roush R. 2013. The potential for carbon sequestration in Australian agricultural soils is technically and economically limited. Scientific Reports 3:srep2179.DOI: 10.1038/srep02179.
  62. Lam SK, Chen D, Norton R, Armstrong R, Mosier AR. 2012. Nitrogen dynamics in grain crop and legume pasture systems under elevated atmospheric carbon dioxide concentration: a meta-analysis. Global Change Biology 18(9):2853-2859.DOI: 10.1111/j.1365-2486.2012.02758.x.
  63. Laurent A, Pelzer E, Loyce C, Makowski D. 2015. Ranking yields of energy crops: a meta-analysis using direct and indirect comparisons. Renewable and Sustainable Energy Reviews 46:41-50.DOI: 10.1016/j.rser.2015.02.023.
  64. Lee K, Choe Y, Park S. 2015. Measuring the environmental effects of organic farming: a meta-analysis of structural variables in empirical research. Journal of Environmental Management 162:263-274.DOI: 10.1016/j.jenvman.2015.07.021.
  65. Leisner CP, Ainsworth EA. 2012. Quantifying the effects of ozone on plant reproductive growth and development. Global Change Biology 18(2):606-616.DOI: 10.1111/j.1365-2486.2011.02535.x.
  66. Letourneau DK, Armbrecht I, Salguero Rivera B, Montoya Lerma J, Jiménez Carmona E, ConstanzaDaza M, Escobar S, Galindo V, Gutiérrez C, Duque López S et al. . 2011. Does plant diversity benefit agroecosystems? A synthetic review. Ecological Applications 21(1):9-21.DOI: 10.1890/09-2026.1.
  67. Linquist BA, Liu L, Kessel Cv, GroenigenKJv. 2013. Enhanced efficiency nitrogen fertilizers for rice systems: meta-analysis of yield and nitrogen uptake. Field Crops Research 154:246-254.DOI: 10.1016/j.fcr.2013.08.014.
  68. Liu C, Lu M, Cui J, Li B, Fang C. 2014. Effects of straw carbon input on carbon dynamics in agricultural soils: a meta-analysis. Global Change Biology 20(5):1366-1381.DOI: 10.1111/gcb.12517.
  69. Liu X, Zhang A, Ji C, Joseph S, Bian R, Li L, Pan G, Paz-Ferreiro J. 2013. Biochar's effect on crop productivity and the dependence on experimental conditions - a meta-analysis of literature data. Plant and Soil 373(1/2):583-594.DOI: 10.1007/s11104-013-1806-x.
  70. Mafongoya P, Rusinamhodzi L, Siziba S, Thierfelder C, Mvumi BM, Nhau B, Hove L, Chivenge P. 2016. Maize productivity and profitability in Conservation Agriculture systems across agro-ecological regions in Zimbabwe: a review of knowledge and practice. Agriculture, Ecosystems & Environment 220:211-225.DOI: 10.1016/j.agee.2016.01.017.
  71. Maia SMF, Carvalho JLN, Cerri CEP, Lal R, Bernoux M, Galdos MV, Cerri CC. 2013. Contrasting approaches for estimating soil carbon changes in Amazon and Cerrado biomes. Soil & Tillage Research 133:75-84.DOI: 10.1016/j.still.2013.06.002.
  72. Maillard É, Angers DA. 2014. Animal manure application and soil organic carbon stocks: a meta-analysis. Global Change Biology 20(2):666-679.DOI: 10.1111/gcb.12438.
  73. Mangalassery S, Sjögersten S, Sparkes DL, Mooney SJ. 2015. Examining the potential for climate change mitigation from zero tillage. Journal of Agricultural Science 153(7):1151-1173.DOI: 10.1017/S0021859614001002.
  74. McDaniel MD, Tiemann LK, Grandy AS. 2014. Does agricultural crop diversity enhance soil microbial biomass and organic matter dynamics? A meta-analysis. Ecological Applications 24(3):560-570.DOI: 10.1890/13-0616.1.
  75. Megali L, Schlau B, Rasmann S. 2015. Soil microbial inoculation increases corn yield and insect attack. Agronomy for Sustainable Development 35(4):1511-1519.DOI: 10.1007/s13593-015-0323-0.
  76. Montañez MN, Amarillo-Suárez Á. 2014. Impact of organic crops on the diversity of insects: a review of recent research. RevistaColombiana de Entomología 40(2):131-142.
  77. Nayak D, Saetnan E, Cheng K, Wang W, Koslowski F, Cheng Y, Zhu W, Wang J, Liu J, Moran D et al. . 2015. Management opportunities to mitigate greenhouse gas emissions from Chinese agriculture. Agriculture, Ecosystems & Environment 209:108-124.DOI: 10.1016/j.agee.2015.04.035.
  78. Nguyen DB, Rose MT, Rose TJ, Morris SG, van Zwieten L. 2016. Impact of glyphosate on soil microbial biomass and respiration: a meta-analysis. Soil Biology & Biochemistry 92:50-57.DOI: 10.1016/j.soilbio.2015.09.014.
  79. Nkala P, Mango N, Corbeels M, Veldwisch GJ, Huising J. 2011. The conundrum of conservation agriculture and livelihoods in Southern Africa. African Journal of Agricultural Research 6(24):5520-5528.DOI: 10.5897/AJAR10.030.
  80. Ogle SM, Swan A, Paustian K. 2012. No-till management impacts on crop productivity, carbon input and soil carbon sequestration. Agriculture, Ecosystems & Environment 149:37-49.DOI: 10.1016/j.agee.2011.12.010.
  81. Paul PA, Madden LV, Bradley CA, Robertson AE, Munkvold GP, Shaner G, Wise KA, Malvick DK, Allen TW, Grybauskas A et al. . 2011. Meta-analysis of yield response of hybrid field corn to foliar fungicides in the U.S. Corn Belt. Phytopathology 101(9):1122-1132.DOI: 10.1094/PHYTO-03-11-0091.
  82. Pellegrino E, Öpik M, Bonari E, Ercoli L. 2015. Responses of wheat to arbuscular mycorrhizal fungi: a meta-analysis of field studies from 1975 to 2013. Soil Biology & Biochemistry 84:210-217.DOI: 10.1016/j.soilbio.2015.02.020.
  83. Pelzer E, Hombert N, Jeuffroy MH, Makowski D. 2014. Meta-analysis of the effect of nitrogen fertilization on annual cereal-legume intercrop production. Agronomy Journal 106(5):1775-1786.DOI: 10.2134/agronj13.0590.
  84. Pittelkow CM, Liang X, Linquist BA, GroenigenKJv, Lee J, Lundy ME, GestelNv, Six J, Venterea RT, Kessel Cv. 2015. Productivity limits and potentials of the principles of conservation agriculture. Nature (London) 517(7534):365-368.DOI: 10.1038/nature13809.
  85. Pittelkow CM, Linquist BA, Lundy ME, Liang X, GroenigenKJv, Lee J, GestelNv, Six J, Venterea RT, Kessel Cv. 2015. When does no-till yield more? A global meta-analysis. Field Crops Research 183:156-168.DOI: 10.1016/j.fcr.2015.07.020.
  86. Poeplau C, Don A. 2015. Carbon sequestration in agricultural soils via cultivation of cover crops - a meta-analysis. Agriculture, Ecosystems & Environment 200:33-41.DOI: 10.1016/j.agee.2014.10.024.
  87. Qin W, Assinck FBT, Heinen M, Oenema O. 2016. Water and nitrogen use efficiencies in citrus production: a meta-analysis. Agriculture, Ecosystems & Environment 222:103-111.DOI: 10.1016/j.agee.2016.01.052.
  88. Quemada M, Baranski M, Nobel-de Lange MNJ, Vallejo A, Cooper JM. 2013. Meta-analysis of strategies to control nitrate leaching in irrigated agricultural systems and their effects on crop yield. Agriculture, Ecosystems & Environment 174:1-10.DOI: 10.1016/j.agee.2013.04.018.
  89. Ribeiro Filho AA, Adams C, Manfredini S, Aguilar R, Neves WA. 2015. Dynamics of soil chemical properties in shifting cultivation systems in the tropics: a meta-analysis. Soil Use and Management 31(4):474-482.DOI: 10.1111/sum.12224.
  90. Rudel TK, Kwon O, Paul BK, Boval M, Rao IM, Burbano D, McGroddy M, Lerner AM, White D, Cuchillo M et al. . 2016. Do smallholder, mixed crop-livestock livelihoods encourage sustainable agricultural practices? A meta-analysis. Land 5(1):6.DOI: 10.3390/land5010006.
  91. Rusinamhodzi L, Corbeels M, WijkMTv, Rufino MC, Nyamangara J, Giller KE. 2011. A meta-analysis of long-term effects of conservation agriculture on maize grain yield under rain-fed conditions. Agronomy for Sustainable Development 31(4):657-673.DOI: 10.1007/s13593-011-0040-2.
  92. Sainju UM. 2016. A global meta-analysis on the impact of management practices on net global warming potential and greenhouse gas intensity from cropland soils. PLoS ONE 11(2):e0148527.DOI: 10.1371/journal.pone.0148527.
  93. Scohier A, Dumont B. 2012. How do sheep affect plant communities and arthropod populations in temperate grasslands? Animal 6(7):1129-1138.DOI: 10.1017/S1751731111002618.
  94. Seufert V, Ramankutty N, Foley JA. 2012. Comparing the yields of organic and conventional agriculture. Nature (London) 485(7397):229-232.DOI: 10.1038/nature11069.
  95. Sileshi GW. 2016. The magnitude and spatial extent of influence of Faidherbiaalbida trees on soil properties and primary productivity in drylands. Journal of Arid Environments 132:1-14.DOI: 10.1016/j.jaridenv.2016.03.002.
  96. Skinner C, Gattinger A, Muller A, Mäder P, Fliessbach A, Stolze M, Ruser R, Niggli U. 2014. Greenhouse gas fluxes from agricultural soils under organic and non-organic management - a global meta-analysis. Science of the Total Environment 468/469:553-563.DOI: 10.1016/j.scitotenv.2013.08.098.
  97. Slattery RA, Ainsworth EA, Ort DR. 2013. A meta-analysis of responses of canopy photosynthetic conversion efficiency to environmental factors reveals major causes of yield gap. Journal of Experimental Botany 64(12):3723-3733.DOI: 10.1093/jxb/ert207.
  98. Soltani E, Soltani A. 2015. Meta-analysis of seed priming effects on seed germination, seedling emergence and crop yield: Iranian studies. International Journal of Plant Production 9(3):413-432.
  99. Sun Y, Zeng Y, Shi Q, Pan X, Huang S. 2015. No-tillage controls on runoff: a meta-analysis. Soil & Tillage Research 153:1-6.DOI: 10.1016/j.still.2015.04.007.
  100. Swanepoel CM, LaanMvd, Weepener HL, PreezCCd, Annandale JG. 2016. Review and meta-analysis of organic matter in cultivated soils in southern Africa. Nutrient Cycling in Agroecosystems 104(2):107-123.DOI: 10.1007/s10705-016-9763-4.
  101. Tian K, Zhao Y, Xu X, Hai N, Huang B, Deng W. 2015. Effects of long-term fertilization and residue management on soil organic carbon changes in paddy soils of China: a meta-analysis. Agriculture, Ecosystems & Environment 204:40-50.DOI: 10.1016/j.agee.2015.02.008.
  102. Tonitto C, Ricker-Gilbert JE. 2016. Nutrient management in African sorghum cropping systems: applying meta-analysis to assess yield and profitability. Agronomy for Sustainable Development 36(1):1-19.DOI: 10.1007/s13593-015-0336-8.
  103. Tuck SL, Winqvist C, Mota F, Ahnström J, Turnbull LA, Bengtsson J. 2014. Land-use intensity and the effects of organic farming on biodiversity: a hierarchical meta-analysis. Journal of Applied Ecology 51(3):746-755.DOI: 10.1111/1365-2664.12219.
  104. Turmel MS, Turner BL, Whalen JK. 2011. Soil fertility and the yield response to the System of Rice Intensification. Renewable Agriculture and Food Systems 26(3):185-192.DOI: 10.1017/S174217051100007X.
  105. Valkama E, Lemola R, Känkänen H, Turtola E. 2015. Meta-analysis of the effects of undersown catch crops on nitrogen leaching loss and grain yields in the Nordic countries. Agriculture, Ecosystems & Environment 203:93-101.DOI: 10.1016/j.agee.2015.01.023.
  106. Valkama E, Salo T, Esala M, Turtola E. 2013. Nitrogen balances and yields of spring cereals as affected by nitrogen fertilization in northern conditions: a meta-analysis. Agriculture, Ecosystems & Environment 164:1-13.DOI: 10.1016/j.agee.2012.09.010.
  107. Valkama E, Virkajärvi P, Uusitalo R, Ylivainio K, Turtola E. 2016. Meta-analysis of grass ley response to phosphorus fertilization in Finland. Grass and Forage Science 71(1):36-53.DOI: 10.1111/gfs.12156.
  108. Vanlauwe B, Kihara J, Chivenge P, Pypers P, Coe R, Six J. 2011. Agronomic use efficiency of N fertilizer in maize-based systems in sub-Saharan Africa within the context of integrated soil fertility management. Plant and Soil 339(1/2):35-50.DOI: 10.1007/s11104-010-0462-7.
  109. Vanuytrecht E, Raes D, Willems P. 2011. Considering sink strength to model crop production under elevated atmospheric CO2. Agricultural and Forest Meteorology 151(12):1753-1762.DOI: 10.1016/j.agrformet.2011.07.011.
  110. Vanuytrecht E, Raes D, Willems P, Geerts S. 2012.