An online survey of farmers' perspectives on the adoption of multispecies swards: Barriers, benefits and knowledge gaps

Abstract

Background: This study used an online survey to explore the perspectives, practices and knowledge gaps of Irish farmers regarding the adoption of multispecies swards (MSS), a sustainable alternative to traditional monoculture grassland systems. With ruminant livestock production being central to global agricultural gross domestic product and Ireland's reliance on grass-based systems, MSS offer potential benefits for productivity, sustainability and environmental impact. However, farm-level data on MSS adoption are limited.

Methods: An adapted version of Rogers' Innovation Decision Process model was used to examine farmers' awareness, adoption drivers, perceived benefits, barriers and knowledge needs related to MSS.

Results: Among 200 Irish farmers surveyed between October 2023 and March 2024, 93% were aware of MSS and 57% had adopted it. Reported benefits included improved biodiversity, soil health, drought resilience and reduced nitrogen use, with 91% of adopters lowering fertiliser inputs. Key barriers were difficulties with establishment, grazing management, weed control and uncertainty about seed mixtures. Farmers expressed a need for more guidance on persistence and management and preferred learning via open days and discussion groups.

Conclusions: The findings highlight the need for tailored support to facilitate MSS adoption. Future initiatives should prioritise peer learning, demonstration farms and practical guidance on establishment and grazing.

Keywords

agricultural sustainability / farmer adoption / grassland management / multispecies swards / Rogers' Innovation Decision Process model

References

[1] Aguiar-Noury, F., Buckley, C., & Hynes, S. (2025). Transition from chemical fertilizers to sustainable swards: What determines farmers' adoption decisions for clover and multi-species swards? Agricultural Systems, 224, 104202. https://doi.org/10.1016/j.agsy.2024.104202

[2] Ajzen, I. (1985). From intentions to actions: A theory of planned behavior. In J. Kuhl & J. Beckmann (Eds.), Action control: From cognition to behavior (pp. 11–39). Springer-Verlag.

[3] Baker, S., Lynch, M. B., Godwin, F., Boland, T. M., Evans, A. C., Murphy, P. N., Kelly, A. K., & Sheridan, H. (2023). A comparison of the nutritive value of perennial ryegrass, perennial ryegrass and white clover and multispecies-based farmlet systems. Grassland Research, 2(2), 129–139. https://doi.org/10.1002/glr2.12052

[4] Baker, S., Lynch, M. B., Godwin, F., Boland, T. M., Kelly, A. K., Evans, A. C., Murphy, P. N., & Sheridan, H. (2023). Multispecies swards outperform perennial ryegrass under intensive beef grazing. Agriculture, Ecosystems and Environment, 345, 108335. https://doi.org/10.1016/j.agee.2022.108335

[5] Baker, S., Lynch, M. B., Godwin, F., Brennan, E., Boland, T. M., Evans, A. C., Kelly, A. K., & Sheridan, H. (2023). Dry-matter production and botanical composition of multispecies and perennial ryegrass swards under varying defoliation management. Grass and Forage Science, 78(3), 390–401. https://doi.org/10.1111/gfs.12615

[6] Bandiera, O., & Rasul, I. (2006). Social networks and technology adoption in northern Mozambique. The Economic Journal, 116(514), 869–902. https://doi.org/10.1111/j.1468-0297.2006.01115.x

[7] Bartholomew, P. W., & Chestnutt, D. M. B. (1977). The effect of a wide range of fertilizer nitrogen application rates and defoliation intervals on the dry-matter production, seasonal response to nitrogen, persistence and aspects of chemical composition of perennial ryegrass (Lolium perenne cv. S.24). The Journal of Agricultural Science, 88(3), 711–721. https://doi.org/10.1017/S0021859600037424

[8] Beaucarne, G., Shackleton, J., Grace, C., Kennedy, J., Sheridan, H., & Boland, T. M. (2025). Multispecies swards enhance animal performance in a co-grazing cattle and sheep production system. Animal, 19(4), 101451. https://doi.org/10.1016/j.animal.2025.101451

[9] Bonilla-Cedrez, C., Steward, P., Rosenstock, T. S., Thornton, P., Arango, J., Kropff, M., & Ramirez-Villegas, J. (2023). Priority areas for investment in more sustainable and climate-resilient livestock systems. Nature Sustainability, 6, 1279–1286. https://doi.org/10.1038/s41893-023-01161-1

[10] Bracken, C. J., Lanigan, G. J., Richards, K. G., Müller, C., Tracy, S. R., Grant, J., Krol, D. J., Sheridan, H., Lynch, M. B., Grace, C., Fritch, R., & Murphy, P. N. C. (2020). Sward composition and soil moisture conditions affect nitrous oxide emissions and soil nitrogen dynamics following urea-nitrogen application. Science of the Total Environment, 722, 137780. https://doi.org/10.1016/j.scitotenv.2020.137780

[11] Central Statistics Office (CSO). (2023a). Farm Structure Survey 2023. https://www.cso.ie/en/releasesandpublications/ep/p-fss/farmstructuresurvey2023/farmstructure/

[12] Central Statistics Office (CSO). (2023b). Agricultural price indices January 2023. https://www.cso.ie/en/releasesandpublications/ep/p-api/agriculturalpriceindicesjanuary2023/

[13] Central Statistics Office (CSO). (2024). Ecosystem accounts—Grasslands and Croplands 2000–2022. https://www.cso.ie/en/releasesandpublications/fp/fp-eagac/ecosystemaccountsgrasslandsandcroplands2000-2022/

[14] Cong, W. F., Suter, M., Lüscher, A., & Eriksen, J. (2018). Species interactions between forbs and grass-clover contribute to yield gains and weed suppression in forage grassland mixtures. Agriculture, Ecosystems & Environment, 268, 154–161. https://doi.org/10.1016/j.agee.2018.09.019

[15] Cowling, D. W. (1982). Biological nitrogen fixation and grassland production in the United Kingdom. Philosophical Transactions of the Royal Society of London B, Biological Sciences, 296(1082), 397–404. https://doi.org/10.1098/rstb.1982.0015

[16] Coyne, L., Kendall, H., Hansda, R., Reed, M. S., & Williams, D. J. L. (2021). Identifying economic and societal drivers of engagement in agri-environmental schemes for English dairy producers. Land Use Policy, 101, 105174. https://doi.org/10.1016/j.landusepol.2020.105174.

[17] Cummins, S., Finn, J. A., Richards, K. G., Lanigan, G. J., Grange, G., Brophy, C., Cardenas, L. M., Misselbrook, T. H., Reynolds, C. K., & Krol, D. J. (2021). Beneficial effects of multi-species mixtures on N₂O emissions from intensively managed grassland swards. Science of the Total Environment, 792, 148163. https://doi.org/10.1016/j.scitotenv.2021.148163

[18] Davies, W. (1952). The grass crop, its development, use, and maintenance. Agricultural Series.

[19] Davis, F. D. (1989). Perceived usefulness, perceived ease of use, and user acceptance of information technology. MIS Quarterly, 13, 319–340. https://doi.org/10.2307/249008.

[20] De Klein, C. A. M., Sherlock, R. R., Cameron, K. C., & van der Weerden, T. J. (2001). Nitrous oxide emissions from agricultural soils in New Zealand—A review of current knowledge and directions for future research. Journal of the Royal Society of New Zealand, 31(3), 543–574. https://doi.org/10.1080/03014223.2001.9517667

[21] Department of Agriculture, Food and the Marine (DAFM). (2024). Multi species sward measure. Government of Ireland. https://www.gov.ie/en/service/4ccda-multi-species-sward-measure/

[22] Dillon, P., Crosse, S., O'Brien, B., & Mayes, R. W. (2002). The effect of forage type and level of concentrate supplementation on the performance of spring-calving dairy cows in early lactation. Grass and Forage Science, 57(3), 212–223. https://doi.org/10.1046/j.1365-2494.2002.00319.x

[23] Dillon, E., Donnellan, T., Moran, B., & Lennon, J. (2022). Teagasc national farm survey 2021. Agricultural Economics and Farm Surveys Department, Rural Economy Development Programme, Teagasc. https://www.teagasc.ie/media/website/publications/2022/Teagasc-National-Farm-Survey-2021.pdf

[24] Dillon, E., Donnellan, T., Moran, B., & Lennon, J. (2023). Teagasc national farm survey 2022. Agricultural Economics and Farm Surveys Department, Rural Economy Development Programme, Teagasc. https://www.teagasc.ie/media/website/publications/2023/NFSfinalreport2022.pdf

[25] Dillon, E., Donnellan, T., Moran, B., & Lennon, J. (2024). Teagasc national farm survey 2023. Teagasc. https://www.teagasc.ie/publications/2024/teagasc-national-farm-survey-2023.php

[26] Elahi, E., Khalid, Z., & Zhang, Z. (2022). Understanding farmers' intention and willingness to install renewable energy technology: A solution to reduce the environmental emissions of agriculture. Applied Energy, 309, 118459. https://doi.org/10.1016/j.apenergy.2021.118459.

[27] Finn, J. A., Kirwan, L., Connolly, J., Sebastià, M. T., Helgadottir, A., Baadshaug, O. H., Bélanger, G., Black, A., Brophy, C., Collins, R. P., Čop, J., Dalmannsdóttir, S., Delgado, I., Elgersma, A., Fothergill, M., Frankow-Lindberg, B. E., Ghesquiere, A., Golinska, B., Golinski, P., … Lüscher, A. (2013). Ecosystem function enhanced by combining four functional types of plant species in intensively managed grassland mixtures: A 3-year continental-scale field experiment. Journal of Applied Ecology, 50(2), 365–375. https://doi.org/10.1111/1365-2664.12041

[28] Finn, J. A., Suter, M., Vishwakarma, R., Oram, N. J., Lüscher, A., & Brophy, C. (2024). Design principles for multi-species productive grasslands: Quantifying effects of diversity beyond richness. Journal of Ecology, 112(11), 2471–2479. https://doi.org/10.1111/1365-2745.14314

[29] Fox, A., Suter, M., Widmer, F., & Lüscher, A. (2020). Positive legacy effect of previous legume proportion in a ley on the performance of a following crop of Lolium multiflorum. Plant and Soil, 447(1), 497–506. https://doi.org/10.1007/s11104-019-04403-4

[30] Frame, J., & Laidlaw, A. (2011). Improved grassland management. Crowood Press.

[31] Galloway, J. N., Townsend, A. R., Erisman, J. W., Bekunda, M., Cai, Z., Freney, J. R., Martinelli, L. A., Seitzinger, S. P., & Sutton, M. A. (2008). Transformation of the nitrogen cycle: Recent trends, questions and potential solutions. Science, 320(5878), 889–892. https://doi.org/10.1126/science.1136674

[32] Grace, C., Boland, T. M., Sheridan, H., Brennan, E., Fritch, R., & Lynch, M. B. (2019). The effect of grazing versus cutting on dry matter production of multispecies and perennial ryegrass-only swards. Grass and Forage Science, 74(3), 437–449. https://doi.org/10.1111/gfs.12440

[33] Grace, C., Lynch, M. B., Sheridan, H., Lott, S., Fritch, R., & Boland, T. M. (2019). Grazing multispecies swards improves ewe and lamb performance. Animal, 13(8), 1721–1729. https://doi.org/10.1017/S1751731118003245.

[34] Grange, G., Brophy, C., Vishwakarma, R., & Finn, J. A. (2024). Effects of experimental drought and plant diversity on multifunctionality of a model system for crop rotation. Scientific Reports, 14(1), 10265. https://doi.org/10.1038/s41598-024-60233-0.

[35] Grange, G., Finn, J. A., & Brophy, C. (2021). Plant diversity enhanced yield and mitigated drought impacts in intensively managed grassland communities. Journal of Applied Ecology, 58(9), 1864–1875. https://doi.org/10.1111/1365-2664.13894

[36] Grogan, D., & Gilliland, T. J. (2011). A review of perennial ryegrass variety evaluation in Ireland. Irish Journal of Agricultural and Food Research, 50(1), 65–81. http://www.jstor.org/stable/41348156

[37] Gudmundsdottir, G. B., & Brock-Utne, B. (2010). An exploration of the importance of piloting and access as action research. Educational Action Research, 18(3), 359–372. https://doi.org/10.1080/09650792.2010.499815

[38] Hearn, C., Egan, M., Lynch, M. B., Fleming, C., & O'Donovan, M. (2022). Seasonal variations in nutritive and botanical composition properties of multispecies grazing swards over an entire dairy grazing season. Grassland Research, 1(4), 221–233. https://doi.org/10.1002/glr2.12037

[39] Hegedus, E. J., & Moody, J. (2010). Clinimetrics corner: The many faces of selection bias. Journal of Manual & Manipulative Therapy, 18(2), 69–73. https://doi.org/10.1179/106698110x12640740712699.

[40] Hennessy, D., Ruelle, E., & Burchill, W. (2022). Better management of dairy nitrogen with grass-white clover swards. In D. Hennessy, M. O'Donovan, & E. Kennedy (Eds.), Proceedings of the swards for the future conference & workshop (pp. 10–14). Teagasc Moorepark, Co. Cork.

[41] Hewins, D. B., Lyseng, M. P., Schoderbek, D. F., Alexander, M., Willms, W. D., Carlyle, C. N., Chang, S. X., & Bork, E. W. (2018). Grazing and climate effects on soil organic carbon concentration and particle-size association in northern grasslands. Scientific Reports, 8(1), 1336. https://doi.org/10.1038/s41598-018-19785-1

[42] Hu, Y., Li, B., Zhang, Z., & Wang, J. (2022). Farm size and agricultural technology progress: Evidence from China. Journal of Rural Studies, 93, 417–429. https://doi.org/10.1016/j.jrurstud.2019.01.009.

[43] Ikoyi, I., Grange, G., Finn, J. A., & Brennan, F. P. (2023). Plant diversity enhanced nematode-based soil quality indices and changed soil nematode community structure in intensively-managed agricultural grasslands. European Journal of Soil Biology, 118, 103542. https://doi.org/10.1016/j.ejsobi.2023.103542

[44] Isbell, F., Adler, P. R., Eisenhauer, N., Fornara, D., Kimmel, K., Kremen, C., Letourneau, D. K., Liebman, M., Polley, H. W., Quijas, S., & Scherer-Lorenzen, M. (2017). Benefits of increasing plant diversity in sustainable agroecosystems. Journal of Ecology, 105(4), 871–879. https://doi.org/10.1111/1365-2745.12789

[45] Jaramillo, D. M., Sheridan, H., Soder, K., & Dubeux Jr., J. C. B. (2021). Enhancing the sustainability of temperate pasture systems through more diverse swards. Agronomy, 11(10), 1912. https://doi.org/10.3390/agronomy11101912

[46] Jezequel, A., Delaby, L., McKay, Z. C., Fleming, C., & Horan, B. (2024). Effect of sward species diversity combined with a reduction in nitrogen fertilizer on the performances of spring-calving grazing dairy cows. Journal of Dairy Science, 107(12), 11104–11116. https://doi.org/10.3168/jds.2024-25177

[47] Kemp, D. R., Michalk, D. L., & Virgona, J. M. (2000). Towards more sustainable pastures: Lessons learnt. Australian Journal of Experimental Agriculture, 40(2), 343–356. https://doi.org/10.1071/EA99001

[48] Kostovska, R., Horan, B., Drouin, G., Tobin, J. T., O'Callaghan, T. F., Kelly, A. L., & Gómez-Mascaraque, L. G. (2024). Effects of multispecies pasture diet and cow breed on milk composition and quality in a seasonal spring-calving dairy production system. Journal of Dairy Science, 107(12), 10256–10267. https://doi.org/10.3168/jds.2024-24975

[49] Lambin, E. F., & Meyfroidt, P. (2011). Global land use change, economic globalization, and the looming land scarcity. Proceedings of the National Academy of Sciences, 108(9), 3465–3472. https://doi.org/10.1073/pnas.1100480108

[50] Ledgard, S. F., & Steele, K. W. (1992). Biological nitrogen fixation in mixed legume/grass pastures. Plant and Soil, 141(1), 137–153. https://doi.org/10.1007/BF00011314

[51] Lee, J. M., Donaghy, D. J., Sathish, P., & Roche, J. R. (2010). Perennial ryegrass regrowth after defoliation-physiological and molecular changes. Proceedings of the New Zealand Grassland Association (pp. 127–134). Lincoln.

[52] Lee, J. M., Hemmingson, N. R., Minnee, E. M. K., & Clark, C. E. F. (2015). Management strategies for chicory (Cichorium intybus) and plantain (Plantago lanceolata): Impact on dry matter yield, nutritive characteristics and plant density. Crop and Pasture Science, 66(2), 168–183. https://doi.org/10.1071/CP14181

[53] Leeuwis, C., & van den Ban, A. W. (2004). Communication for rural innovation: Rethinking agricultural extension. Blackwell Science Ltd.

[54] Lüscher, A., Barkaoui, K., Finn, J. A., Suter, D., Suter, M., & Volaire, F. (2022). Using plant diversity to reduce vulnerability and increase drought resilience of permanent and sown productive grasslands. Grass and Forage Science, 77(4), 235–246. https://doi.org/10.1111/gfs.12578

[55] Malmqvist, J., Hellberg, K., Möllås, G., Rose, R., & Shevlin, M. (2019). Conducting the pilot study: A neglected part of the research process? Methodological findings supporting the importance of piloting in qualitative research studies. International Journal of Qualitative Methods, 18, 1609406919878341. https://doi.org/10.1177/1609406919878341

[56] Martínez-Dalmau, J., Berbel, J., & Ordóñez-Fernández, R. (2021). Nitrogen fertilization. A review of the risks associated with the inefficiency of its use and policy responses. Sustainability, 13(10), 5625. https://doi.org/10.3390/su13105625

[57] McGrane, L., McHugh, N., Boland, T. M., & Creighton, P. (2023). The effect of the addition of a companion forage to a perennial ryegrass sward on ewe and lamb performance. Livestock Science, 275, 105294. https://doi.org/10.1016/j.livsci.2023.105294

[58] Moloney, T., Sheridan, H., Grant, J., O'Riordan, E. G., & O'Kiely, P. (2021). Yield of binary-and multi-species swards relative to single-species swards in intensive silage systems. Irish Journal of Agricultural and Food Research, 59(1), 12–26. https://doi.org/10.2478/ijafr-2020-0002

[59] Mulkerrins, M. J., Gottstein, M., Gorman, M., Russell, T., Ryan, M., & Lynch, M. B. (2023). Could the influence of monitor farm programmes on practice change be BETTER? Lessons from sheep farmers and advisors in Ireland. The Journal of Agricultural Education and Extension, 29(5), 653–678. https://doi.org/10.1080/1389224X.2022.2125409.

[60] Nyfeler, D., Huguenin-Elie, O., Suter, M., Frossard, E., Connolly, J., & Lüscher, A. (2009). Strong mixture effects among four species in fertilized agricultural grassland led to persistent and consistent transgressive overyielding. Journal of Applied Ecology, 46(3), 683–691. https://doi.org/10.1111/j.1365-2664.2009.01653.x

[61] Pannell, D. J., Marshall, G. R., Barr, N., Curtis, A., Vanclay, F., & Wilkinson, R. (2006). Understanding and promoting adoption of conservation practices by rural landholders. Australian Journal of Experimental Agriculture, 46(11), 1407–1424. https://doi.org/10.1071/EA05037

[62] Plano Clark, V. L. (2017). Mixed methods research. The Journal of Positive Psychology, 12(3), 305–306. https://doi.org/10.1080/17439760.2016.1262619

[63] Prokopy, L. S., Floress, K., Klotthor-Weinkauf, D., & Baumgart-Getz, A. (2008). Determinants of agricultural best management practice adoption: Evidence from the literature. Journal of Soil and Water Conservation, 63(5), 300–311. https://doi.org/10.2489/jswc.63.5.300

[64] Reid, D. (1970). The effects of a wide range of nitrogen application rates on the yields from a perennial ryegrass sward with and without white clover. The Journal of Agricultural Science, 74(2), 227–240. https://doi.org/10.1017/S002185960002284X

[65] Roca-Fernández, A. I., Peyraud, J. L., Delaby, L., & Delagarde, R. (2016). Pasture intake and milk production of dairy cows rotationally grazing on multi-species swards. Animal, 10(9), 1448–1456. https://doi.org/10.1017/S1751731116000331

[66] Rogers, E. M., Singhal, A., & Quinlan, M. M. (2014). Diffusion of innovations. In D. W. Stacks & M. B. Salwen (Eds.), An integrated approach to communication theory and research ( 2nd ed., pp. 432–448). Routledge.

[67] Sanderson, M. A. (2010). Stability of production and plant species diversity in managed grasslands: A retrospective study. Basic and Applied Ecology, 11(3), 216–224. https://doi.org/10.1016/j.baae.2009.08.002

[68] Sanderson, M. A., Skinner, R. H., Barker, D. J., Edwards, G. R., Tracy, B. F., & Wedin, D. A. (2005). Plant species diversity and management of temperate forage and grazing land ecosystems. Crop Science, 44(4), 1132–1144. https://doi.org/10.2135/cropsci2004.1132

[69] Shackleton, J., Boland, T. M., Kennedy, J., Grace, C., Beaucarne, G., Kirwan, S. F., Schmidt, O., & Sheridan, H. (2024). Annual and seasonal dry matter production, botanical species composition, and nutritive value of multispecies, permanent pasture, and perennial ryegrass swards managed under grazing. Grass and Forage Science, 79(4), 630–650. https://doi.org/10.1111/gfs.12691

[70] Shorten, A., & Smith, J. (2017). Mixed methods research: Expanding the evidence base. Evidence Based Nursing, 20(3), 74–75. https://doi.org/10.1136/eb-2017-102699

[71] Šidlauskaitė, G., Kemešytė, V., Toleikienė, M., & Kadžiulienė, Ž. (2022). Plant diversity, functional group composition and legumes effects versus fertilisation on the yield and forage quality. Sustainability, 14(3), 1182. https://doi.org/10.3390/su14031182

[72] Taherdoost, H. (2022). What are different research approaches? Comprehensive review of qualitative, quantitative, and mixed method research, their applications, types, and limitations. Journal of Management Science & Engineering Research, 5(1), 53–63. https://doi.org/10.30564/jmser.v5i1.4538

[73] Tilman, D., Isbell, F., & Cowles, J. M. (2014). Biodiversity and ecosystem functioning. Annual Review of Ecology, Evolution, and Systematics, 45(1), 471–493. https://doi.org/10.1146/annurev-ecolsys-120213-091917

[74] Woodmartin, S., Creighton, P., Boland, T. M., Farrell, L., Claffey, N., & McGovern, F. (2024). The inclusion of companion forages in the diet alongside perennial ryegrass increased dry matter intake and organic matter digestibility in sheep. Animal, 18(5), 101150. https://doi.org/10.1016/j.animal.2024.101150

[75] Zheng, L., Barry, K. E., Guerrero-Ramírez, N. R., Craven, D., Reich, P. B., Verheyen, K., Scherer-Lorenzen, M., Eisenhauer, N., Barsoum, N., Bauhus, J., Bruelheide, H., Cavender-Bares, J., Dolezal, J., Auge, H., Fagundes, M. V., Ferlian, O., Fiedler, S., Forrester, D. I., Ganade, G., … Hautier, Y. (2024). Effects of plant diversity on productivity strengthen over time due to trait-dependent shifts in species overyielding. Nature Communications, 15(1), 2078. https://doi.org/10.1038/s41467-024-46355-z

[76] Zohrabi, M. (2013). Mixed method research: Instruments, validity, reliability and reporting findings. Theory and Practice in Language Studies, 3(2), 254. https://doi.org/10.4304/tpls.3.2.254-262

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