Self-reseeding annual legumes for cover cropping in rainfed managed olive orchards

  • M. Ângelo Rodrigues Mountain Research Centre (CIMO), Polytechnic Institute of Bragança, Ap 1172, 5301-855 Bragança
  • Isabel Q. Ferreira Mountain Research Centre (CIMO), Polytechnic Institute of Bragança, Ap 1172, 5301-855 Bragança
  • Sara L. Freitas Mountain Research Centre (CIMO), Polytechnic Institute of Bragança, Ap 1172, 5301-855 Bragança
  • Jaime M. Pires Mountain Research Centre (CIMO), Polytechnic Institute of Bragança, Ap 1172, 5301-855 Bragança
  • Margarida P. Arrobas Mountain Research Centre (CIMO), Polytechnic Institute of Bragança, Ap 1172, 5301-855 Bragança
Keywords: pasture legumes, mulching, Olea europaea, nitrogen management, groundcover percentage, persistence


Given the environmental impact of nitrogen (N)-fertilizer manufacture and use, the sustainable management of agro-systems should be sought by growing N-fixing legumes. In this work, eleven self-reseeding annual legumes were grown in pure stands as mulching cover crops in a rainfed olive orchard managed without grazing animals. Dry matter yield, N content in above-ground biomass, groundcover percentage and persistence of the sown species were assessed during four growing seasons. All covers provided enough soil protection over the year, with living plants during the autumn/winter period and a mulch of dead residues during the summer. The legumes overcame a false break observed in the third year recovering the dominance of the covers in the fourth growing season. This means that the seed bank established in previous seasons ensured the persistence of the sown legume even when a gap in seed production occurred. The early-maturing cultivars produced less biomass and fixed less N (approx. 50 kg N/ha/yr present in the above-ground biomass) than the late-maturing ones, but would compete less for water since the growing cycle finished earlier in the spring. They seem best suited to being grown in dry farmed olive orchards with low N demand in drought prone regions.


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Ates S, Lucas RJ, Edwards GR, 2013. Effects of stocking rate and closing date on subterranean clover populations and dry matter production in dryland sheep pastures. New Zeal J Agr Res 56(1): 22-36.

Ball DA, Frost SM, Fandrich L, Tarasoff C, Mallory-Smith C, 2008. Biological attributes of rattail fescue (Vulpia myuros). Weed Sci 56: 26-31.

Boschma SP, Crocker GJ, Lodge GM, Harden S, 2011. Evaluation of pasture legumes in northern New South Wales, Australia. New Zeal J Agr Res 54(3): 203-213.

Carlsson G, Huss-Danell K, 2003. Nitrogen fixation in perennial forage legumes in the field. Plant Soil 253: 353-372.

Damgaard C, Merlin A, Mesléard F, Bonis A, 2011. The demography of space occupancy: measuring plant colonization and survival probabilities using repeated pin-point measurements. Methods Ecol Evol 2: 110-115.

Del Pozo A, Ovalle C, 2009. Productivity and persistence of yellow serradela (Ornithopus compressus L.) and biserrula (Biserrula pelecinus L.) in the Mediterranean climate region of central Chile. Chil J Agr Res 69(3): 340-349.

Driouech N, Abou Fayad A, Ghanem A, Al-Bitar L, 2008. Agronomic performance of annual self-reseeding legumes and their self-establishment potential in the Apulia region of Italy. 16th IFOAM Organic World Congress, Modena, Italy, June, pp: 16-20.

Duarte F, Jones N, Fleskens L, 2008. Traditional olive orchards on sloping land: Sustainability or abandonment? J Environ Manage 89: 86-98.

Ferreira IQ, Arrobas M, Claro AM, Rodrigues MA, 2013. Soil management in rainfed olive orchards may result in conflicting effects on olive production and soil fertility. Span J Agric Res 11(2): 472-480.

Gómez JA, Guzmán MG, Giráldez JV, Ferreres E, 2009. The influence of cover crops and tillage on water and sediment yield, and on nutrient, and organic matter losses in an olive orchard on a sandy loam soil. Soil Till Res 106: 137-144.

Graaff J, Zuazo V-HD, Jones N, Fleskens L, 2008. Olive production systems on sloping land: Prospects and scenarios. J Environ Manage 89: 129-139.

Gucci R, Caruso G, Bertolla C, Urbani S, Tatichi A, Esposto S, Servili M, Sifola MI, Pellegrini S, Pagliai M, Vignozzi N, 2012. Changes of soil properties and tree performances induced by soil management in a high-density olive orchard. Eur J Agron 41: 18-27.

Guo YJ, Li GD, Hayes RC, Dear BS, Price A, 2012. Tolerance of the annual legumes Biserrula pelecinus, Ornithopus sativa, Trifolium spumosum, T. vesiculosum and T. subterraneum to soil acidity. New Zeal J Agr Res 55(1): 1-14.

Hardarson G, Atkins C, 2003. Optimising biological N2 fixation by legumes in farming systems. Plant Soil 252: 41-54.

Loi A, Cocks PS, Howieson JG, Carr SJ, 1997. Morphological characterization of Mediterranean populations of Bisenula pelecinus L. Plant Breeding 116: 171-176.

Martínez JRF, Zuazo VHD, Raya AM, 2006. Environmental impact from mountainous olive orchard under different soil-management systems (SE Spain). Sci Total Environ 358: 46-60.

Mauromicale G, Occhipinti A, Mauro RP, 2010. Selection of shade-adapted subterranean clover species for cover cropping in orchards. Agron Sustain Dev 30: 473-480.

Meier U, 2001. Growth stages of mono-and dicotyledonous plants. BBCH Monographs, 2nd ed. Federal Biological Research Centre for Agriculture and Forestry. BBCH Publ, Germany. 158 pp.

Monday TA, Foshee WG, Blythe EK, Dozier WA, Wells LW, Sibley JL, Brown JE, 2013. Nitrogen requirements for sweetpotato following a crimson clover cover crop. Int J Veg Sci 19: 78-82.

Montanaro G, Celano G, Dichio B, Xiloyannis C, 2010. Effect of soil-protecting agricultural practices on soil organic carbon and productivity in fruit tree orchards. Land Degrad Dev 21: 132-138.

Moreno B, Garcia-Rodriguez S, Cañizares R, Castro J, Benítez E, 2009. Rainfed olive farming in South-eastern Spain: long-term effect of soil management on biological indicators of soil quality. Agr Ecosyst Environ 131: 333-339.

Munoz AE, Weaver RW, 1999. Competition between subterranean clover and ryegrass for uptake of 15N-labeled fertilizer. Plant Soil 211: 173-178.

Nichols PGH, Loi A, Nutt BJ, Evans PM, Craig AD, Penglley BC, Dear BS, Lloyd DL, Revell CK, Nair RM, et al., 2007. New annual and short-lived perennial pasture legumes for Australian agriculture—15 years of revolution. Field Crop Res 104: 10-23.

Ovalle C, Arredondo S, Romero O, 2006. Yellow serradella (Ornithopus compressus) and pink serradella (O. sativus): Two new species of annual legumes for the Mediterranean climate zone of Chile. Agric Téc 66 (2): 196-209.

Ovalle C, Del Pozo A, Lavín A, Hirzel J, 2007. Cover crops in vineyards: performance of annual forage legume mixtures and effects on soil fertility. Agric Téc (Chile) 67(4): 384-392.

Peoples MB, Bowman AM, Gault RR, Herridge DF, Mccallum MH, Mccormick KM, Norton RM, Rochester IJ, Scammell GJ, Schwenke GD, 2001. Factors regulating the contributions of fixed nitrogen by pasture and crop legumes to different farming systems of eastern Australia. Plant Soil 228: 29-41.

Pirhofer-Walzl K, Rasmussen J, Høgh-Jensen H, Eriksen J, Søegaard K, Rasmussen J, 2012. Nitrogen transfer from forage legumes to nine neighboring plants in a multi-species grassland. Plant Soil 350: 71-84.

Ramos ME, Benítez E, García P, Robles AB, 2010. Cover crops under different managements vs. frequent tillage in almond orchards in semiarid conditions: Effects on soil quality. Appl Soil Ecol 44: 6-14.

Rodrigues MA, Arrobas M, Bonifácio N, 2005. Análise de terras em olivais tradicionais de sequeiro. O efeito da aplicação localizada de fertilizantes. Rev Ciênc Agrár XXVIII (2): 167-176.

Rodrigues MA, Pereira A, Cabanas E, Dias L, Pires J, Arrobas M, 2006. Crops use-efficiency of nitrogen from manures permitted in organic farming. Eur J Agron 25: 328-335.

Rodrigues MA, Cabanas J, Lopes JI, Pavão F, Aguiar CF, Arrobas M, 2009. Ground cover and dynamic of weeds after the introduction of herbicides as soil management systems in rainfed olive orchards. Rev Ciênc Agrár XXXII(2): 30-42.

Rodrigues MA, Lopes JI, Pavão F, Cabanas JE, Arrobas M, 2011a. Effect of soil management on olive yield and nutritional status of trees in rainfed orchards. Commun Soil Sci Plant Anal 42: 993-2011.

Rodrigues MA, Pavão F, Lopes JI, Gomes V, Arrobas M, Moutinho-Pereira J, Ruivo S, Cabanas E, Correia CM, 2011b. Olive yields and tree nutritional status during a four year period without nitrogen and boron fertilization. Commun Soil Sci Plant Anal 42: 803-814.

Rodrigues MA, Ferreira IQ, Claro AM, Arrobas M, 2012. Fertiliser recommendations for olive based upon nutrients removed in crop and pruning. Sci Hort 142: 205-211.

Sirrine R, Letourneau K, Shennan C, Sirrine D, Fouch R, Jackson L, Mages A, 2008. Impacts of groundcover management systems on yield, leaf nutrients, weeds, and arthropods of tart cherry in Michigan, USA. Agric Ecosyst Environ 125: 239-245.

Snoeck D, Zapata F, Domenach AM, 2000. Isotopic evidence of the transfer of nitrogen fixed by legumes to coffee trees. Biotechnol Agron Soc Enviro 4(2): 95-100.

Tarasoff S, Mallory-Smith C, Inginieri L, 2013. Vernalization responses and subsequent fertility of two climatically distinct populations of rattail fescue (Vulpia myuros [L.] C.C. Gmel.). Weed Biol Manag 13: 24-30.

Van Riper LC, Larson DL, Larson JL, 2010. Nitrogen-limitation and invasive sweetclover impacts vary between two Great Plains plant communities. Biol Invasions 12: 2735-2749.

Walinga I, van Vark W, Houba V, van der Lee J, 1989. Soil and plant analysis: Part 7 - Plant analysis procedures. Wageningen Agric Univ, The Netherlands. 263 pp.

Zotarelli L, Zatorre P, Boddey M, Urquiaga S, Jantalia P, Franchin C, Alves R, 2012. Influence of no-tillage and frequency of a green manure legume in crop rotations for balancing N outputs and preserving soil organic C stocks. Field Crop Res 132: 185-195.

How to Cite
Rodrigues, M. Ângelo, Ferreira, I. Q., Freitas, S. L., Pires, J. M., & Arrobas, M. P. (2015). Self-reseeding annual legumes for cover cropping in rainfed managed olive orchards. Spanish Journal of Agricultural Research, 13(2), e0302.
Agricultural environment and ecology