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Rui Manuel Almeida Machado is a professor in the Department of Crop Science at the School of Sciences and Technology of the University of Evora and a member of the Mediterranean Institute for Agriculture, Environment, and Development (MED). His research area focuses on the fertigation, irrigation, rooting, nutrition, and fertilization of horticultural plants. Current research is focused on creating more sustainable growing media and improving the fertility of poor soils. He has published 63 articles in specialized journals, 1 book chapter, and 3 books. He belongs to the editorial boards of different scientific journals and was a guest editor for four special issues. On of them entitled "Soilless Culture—An Intensive Production Method on Its Way to Sustainability"
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Identification

Personal identification

Full name
Rui Manuel Almeida Machado

Citation names

  • Machado, RMA
  • Machado rma, Machado R, Rui Machado

Author identifiers

Ciência ID
4819-D217-36CE
ORCID iD
0000-0003-1238-6097

Knowledge fields

  • Agrarian Sciences - Agriculture, Forestry and Fisheries - Horticulture
  • Agrarian Sciences - Agriculture, Forestry and Fisheries - Horticulture

Languages

Language Speaking Reading Writing Listening Peer-review
Portuguese Advanced (C1) Advanced (C1) Advanced (C1) Advanced (C1)
English Intermediate (B1) Advanced (C1) Advanced (C1) Intermediate (B1)
French Intermediate (B1) Intermediate (B1) Intermediate (B1) Intermediate (B1)
Spanish; Castilian Beginner (A1) Advanced (C1) Beginner (A1) Beginner (A1)
Education
Degree Classification
2002
Concluded
 Agricultural Sciences (Doutoramento)
Universidade de Évora, Portugal
"Studies on the influence of subsurface drip irrigation on root dynamics, physical yield, and quality of raw material in processing tomatoes" (THESIS/DISSERTATION)
 Approved with Distinction and Honor
1989
Concluded
 Eng. Agrícola (Licenciatura)
Major in Agricultural Engineering (Licenciatura)
Universidade de Évora, Portugal
"Agricultural Engineering (Licenciatura)" (THESIS/DISSERTATION)
Affiliation

Teaching in Higher Education

Category
Host institution 		Employer
2002 - 2024/06/02 Assistant Professor (University Teacher) Universidade de Évora, Portugal
1990 - 2000 Assistant (University Teacher) Universidade de Évora, Portugal
Projects

Contract

Designation Funders
2021/01/01 - 2025/12/31 CHANGE - Instituto para as Alterações Globais e Sustentabilidade
LA/P/0121/2020
10.54499/LA/P/0121/2020
Universidade do Algarve, Portugal

Fundação Gaspar Frutuoso, Portugal

FCiênciasID Associação para a Investigação e Desenvolvimento de Ciências, Portugal

Associação para a Inovação e Desenvolvimento da FCT, Portugal

Universidade de Évora, Portugal

Universidade de Lisboa Faculdade de Ciências, Portugal

Centro de Biotecnologia Agrícola e Agro-Alimentar do Alentejo, Portugal

Universidade de Lisboa Centro de Ecologia Evolução e Alterações Ambientais, Portugal

Universidade Nova de Lisboa Centro de Investigação em Ambiente e Sustentabilidade, Portugal

Universidade NOVA de Lisboa, Portugal
Fundação para a Ciência e a Tecnologia
Ongoing
2019/01/01 - 2019/12/31 Instituto de Ciências Agrárias e Ambientais Mediterrânicas
UID/AGR/00115/2019
Universidade de Évora, Portugal

Instituto Mediterrâneo para a Agricultura Ambiente e Desenvolvimento, Portugal
Fundação para a Ciência e a Tecnologia
Concluded
2011/01/01 - 2013/12/31 Projecto Estratégico - UI 115 - 2011-2012
PEst-C/AGR/UI0115/2011
Universidade de Évora, Portugal

Instituto Mediterrâneo para a Agricultura Ambiente e Desenvolvimento, Portugal
Fundação para a Ciência e a Tecnologia
Concluded
Outputs

Publications

Book
  1. Machado, Rui; Alpendre, Pedro. Magnésio Um nutriente essencial na produção Agrícola. Sem local: Sítio do Livro. 2015.
    Published
  2. Azevedo, Ario Lobo; Dionisio, Afonso Gonçalves; Machado, RMA. Enclaves de clima Cfs no Alto Portugal: a difusa transição entre a Ibéria humida e a Ibéria seca. Bragança IPB: Bragança IPB. 1995.
    Published
Book chapter
  1. Machado, Rui; Serralheiro, Ricardo. "Salt stress alleviation through fertilization in fruit crops". In Fruit Crops, 465-480. Elsevier, 2020.
    10.1016/b978-0-12-818732-6.00033-2
Conference paper
  1. Rui Machado; Isabel Alves-Pereira; Rui Ferreira. "Spinach production in cocopeat: Effects of plant density and the number of emitters on plant growth and nitrate concentration". 2017.
    10.18690/978-961-286-045-5.40
  2. Shahidian. S; Serralheiro, R.P; Machado rma, Machado R, Rui Machado. Corresponding author: Shahidian. S. "Comparative Study of Smart Irrigation Control in Greenhouses". Madrid, 2013.
    Published
  3. Machado, RMA; Campos Tiago. Corresponding author: Machado, RMA. "Effect of nitrogen source on soil nitrate concentration and yield, and quality of intermediate-day onions. NUTRIHORT: nutrient management, innovative techniques and nutrient legislation in intensive horticulture for an improved water quality". 2013.
    Published
  4. Shahidian, Shakib; Serralheiro, Ricardo; João Serrano; Machado rma, Machado R, Rui Machado. "Reciclagem de impressoras no ensino de comutação física". Évora, 2011.
Conference poster
  1. Machado rma, Machado R, Rui Machado; Correia, Manuela ; Bryla, David R.. "Strategies to reduce supra-optimal temperatures during field and containerized production of highbush blueberry in warm climates. XII International Vaccinium Symposium, Canada". 2021.
  2. Machado rma, Machado R, Rui Machado; Alves-Pereira, Isabel; Rui Manuel Alves Ferreira. "Influência da distribuição da solução nutritiva na produção e no teor em fenóis totais e poder antioxidante em Spinacia oleracea cultivada em coco". 2020.
  3. Machado rma, Machado R, Rui Machado; Alves-Pereira, Isabel. "Effects of different coir types on growth, phytochemical accumulation and antioxidant activity in spinach.". 2019.
  4. Machado rma, Machado R, Rui Machado; Alves-Pereira, Isabel; Rui Manuel Alves Ferreira. "Effects of different coir types on growth, phytochemical accumulation and antioxidant activity in spinach.". 2019.
  5. Machado rma, Machado R, Rui Machado; Alves-Pereira, Isabel; Rui Manuel Alves Ferreira. "Effects of nutrient solution EC on plant growth and phytochemical accumulation in substrate-grown spinach.". 2019.
  6. Machado rma, Machado R, Rui Machado; Alves-Pereira, Isabel; Rui Manuel Alves Ferreira. "Spinach production in cocopeat: Effects of soil block number and the number of emitters on plant growth, nitrate concentration, and antioxidant activity". 2017.
  7. Machado rma, Machado R, Rui Machado; Alves-Pereira, Isabel; Rui Manuel Alves Ferreira. "Influência da distribuição da solução nutritiva na produção e no teor em fenóis totais e poder antioxidante em Spinacia oleracea cultivada em coco". 2017.
  8. Santos Ricardo; Machado, Rui; Alves-Pereira, Isabel; Rui Manuel Alves Ferreira. "The Influence of Nitrogen Fertilization on Growth, Yield and Nitrate and Oxalic Acid Concentration in Purslane (Portulaca oleracea).". 2015.
  9. Machado rma, ; Bryla, David. "Nitrogen requirements at bulb initiation for production of intermediate-day onions.". 2014.
  10. Almutairi, K; Bryla, David R.; Machado rma, Machado R, Rui Machado. "Fertigation with micronized sulfur rapidly reduces soil pH. In highbush blueberry". Paper presented in HortScience, ASHS Annual conference, Palm desert. Califórnia, 2013.
  11. Machado rma(4819-D217-36CE); Bryla, David R.. "Potential of elemental sulfur fertigation to reduce high soil pH for production of highbush". 2012.
  12. Bryla, David R.; Machado rma,. "Effects of Salinity Induced by Ammonium Sulfate Fertilizer on Root and Shoot Growth of Highbush Blueberry". 2011.
  13. Carina piveta; Machado rma, Machado R, Rui Machado; Heldwein, A. B; Dalbianco, L; Ferreira, A. J. S; Maria do Rosário Gamito Oliveira. "Influência da rega gota-a-gota enterrada com e sem introdução de ar na humidade do solo, no azoto nítrico disponível e na produção de alface em estuf". 2008.
  14. Machado rma, Machado R, Rui Machado; Maria do Rosário Gamito Oliveira. "Tomato root distribution under subsurface drip irrigatio". 2001.
  15. Machado rma, Machado R, Rui Machado; Maria do Rosário Gamito Oliveira. "Comparison of tomato root distributions by minirhizotron and destructive sampling". 2001.
  16. Machado rma, Machado R, Rui Machado; Taborda, M.L; Calado, A.M; Portas, Carlos A. M.. "Two decades of evaluation of processing tomatoes cultivars in Portugal: programmes Meti, Metiber, and EC – Amiton trials.". 1993.
Edited book
  1. Machado rma, Machado R, Rui Machado; Nazim Gruda; Erik A. van Os. Soilless Culture—An Intensive Production Method on Its Way to Sustainability. MDPI. 2023.
    10.3390/books978-3-0365-9783-6
  2. Machado, RMA. Soil, Water and Nitrates Management in Horticultural Production. MDPI. 2022.
    Published • 10.3390/books978-3-0365-4576-9 • Editor
Journal article
  1. Nazim S. Gruda; Rui M. A. Machado; Erik A. van Os. "Is Soilless Culture a Sustainable Form of Agriculture?". Horticulturae (2023): https://doi.org/10.3390/horticulturae9111190.
    10.3390/horticulturae9111190
  2. Rui M. A. Machado; Isabel Alves-Pereira; Inês Alves; Rui M. A. Ferreira; Nazim S. Gruda. "Reusing Coir-Based Substrates for Lettuce Growth: Nutrient Content and Phytonutrients Accumulation". Horticulturae (2023): https://doi.org/10.3390/horticulturae9101080.
    10.3390/horticulturae9101080
  3. Tiago Martins; Rui Machado; Isabel Alves-Pereira; Rui Ferreira; Nazim Gruda. "Coir-Based Growing Media with Municipal Compost and Biochar and Their Impacts on Growth and Some Quality Parameters in Lettuce Seedlings". Horticulturae (2023): https://doi.org/10.3390/horticulturae9010105.
    10.3390/horticulturae9010105
  4. Rui M. A. Machado; Isabel Alves-Pereira; Carolina Morais; André Alemão; Rui Ferreira. "Effects of Coir-Based Growing Medium with Municipal Solid Waste Compost or Biochar on Plant Growth, Mineral Nutrition, and Accumulation of Phytochemicals in Spinach". Plants (2022): https://doi.org/10.3390/plants11141893.
    10.3390/plants11141893
  5. Rui Manuel Almeida Machado. "Soil, Water and Nitrates Management in Horticultural Production". Horticulturae (2022): https://doi.org/10.3390/horticulturae8050397.
    10.3390/horticulturae8050397
  6. Rui M. A. Machado; Isabel Alves-Pereira; Yasmin Faty; Sara Perdigão; Rui Ferreira. "Influence of Nitrogen Sources Applied by Fertigation to an Enriched Soil with Organic Compost on Growth, Mineral Nutrition, and Phytochemicals Content of Coriander (Coriandrum sativum L.) in Two Successive Harvests". Plants (2021): https://doi.org/10.3390/plants11010022.
    10.3390/plants11010022
  7. "Coir, an Alternative to Peat—Effects on Plant Growth, Phytochemical Accumulation, and Antioxidant Power of Spinach". Horticulturae 7 6 (2021): 127-127. http://dx.doi.org/10.3390/horticulturae7060127.
    10.3390/horticulturae7060127
  8. Machado, Rui. "Effects of plant density and the number of emitters by styrofoam box on plant growth and nitrate concentration in spinach cultivated in substrate". Acta Horticulturae (2019): http://dx.doi.org/10.17660/actahortic.2019.1242.125.
    10.17660/actahortic.2019.1242.125
  9. Machado, Rui. "Effects of nitrogen level on purslane antioxidant activity". Acta Horticulturae (2019): http://dx.doi.org/10.17660/actahortic.2019.1242.13.
    10.17660/actahortic.2019.1242.13
  10. Kalaitzis, P. "Effects of plant density and the number of emitters on plant growth and nitrate concentration in spinach cultivated in substrate.". (2019): http://hdl.handle.net/10174/25992.
  11. R.M.A. Machado; I. Alves-Pereira; R.M.A. Ferreira. "Plant growth, phytochemical accumulation and antioxidant activity of substrate-grown spinach". Heliyon 4 8 (2018): e00751-e00751. https://doi.org/10.1016/j.heliyon.2018.e00751.
    10.1016/j.heliyon.2018.e00751
  12. Machado, Rui Manuel Almeida; Oliveira, Maria do Rosário Gamito. "Produção de cebola de dias curtos no Alentejo. Influência da adubação localizada". (2018): https://revistas.rcaap.pt/index.php/rca/article/view/15600.
  13. Machado, R.M.A; Ferreira, Rui; Alves-Pereira, Isabel. "Plant growth, phytochemical accumulation and antioxidant activity of substrate-grown spinach". (2018): http://hdl.handle.net/10174/23829.
  14. Machado, Rui. "Chemigation with Micronized Sulfur Rapidly Reduces Soil pH in a New Planting of Northern Highbush Blueberry". HortScience (2017): http://dx.doi.org/10.21273/hortsci12313-17.
    10.21273/hortsci12313-17
  15. Machado, Rui. "Soil Salinity: Effect on Vegetable Crop Growth. Management Practices to Prevent and Mitigate Soil Salinization". Horticulturae (2017): http://dx.doi.org/10.3390/horticulturae3020030.
    10.3390/horticulturae3020030
  16. Machado, Rui. "Effects of substrate type on plant growth and nitrogen and nitrate concentration in spinach". International Journal of Plant Biology (2016): http://dx.doi.org/10.4081/pb.2016.6325.
    10.4081/pb.2016.6325
  17. Machado, Rui. "Nitrogen requirements at bulb initiation for production of intermediate-day onions". Acta Horticulturae (2016): http://dx.doi.org/10.17660/actahortic.2016.1142.11.
    10.17660/actahortic.2016.1142.11
  18. Santos, R.V.; Machado, RMA; Alves-Pereira, Isabel; Ferreira, Rui. "The influence of nitrogen fertilization on growth, yield, nitrate and oxalic acid concentration in purslane (Portulaca oleracea)". Acta Horticulturae 1142 (2016): 299-304. http://dx.doi.org/10.17660/actahortic.2016.1142.45.
    Published • 10.17660/actahortic.2016.1142.45
  19. Dinis, C; Surovy, P; Almeida Ribeiro, Nuno; Machado, Rui; Maria do Rosário Gamito Oliveira. "Cork Oak Seedling Growth under Different Soil Conditions from Fertilisation, Mycorrhizal Fungi and Amino Acid Application". Journal of Agricultural Science (2016):
    Open access
  20. Machado, Rui. "Cork Oak Seedling Growth under Different Soil Conditions from Fertilisation, Mycorrhizal Fungi and Amino Acid Application". Journal of Agricultural Science (2015): http://dx.doi.org/10.5539/jas.v8n1p55.
    10.5539/jas.v8n1p55
  21. Machado, Rui. "EFFECTS OF SALINITY INDUCED BY AMMONIUM SULFATE FERTILIZER ON ROOT AND SHOOT GROWTH OF HIGHBUSH BLUEBERRY". Acta Horticulturae (2014): http://dx.doi.org/10.17660/actahortic.2014.1017.49.
    10.17660/actahortic.2014.1017.49
  22. Machado, Rui; Bryla, David; Vargas, Oscar. "Effects of Salinity Induced by Ammonium Sulfate Fertilizer on Root and Shoot Growth of Highbush Blueberry". Acta Horticulturae 1 (2014): 1-10. http://www.actahort.org/books/1017/1017_49.htm.
    Published
  23. Almendros, Patricia; Obrador, Ana; Alvarez, José; Machado, Rui. "Biofortificacíon de Cereales con Micronutrientes". Agricultura 1 (2014): 1-10. http://hdl.handle.net/10174/11869.
    Published
  24. Machado, R.M.A; Alpendre, P.F; Shahidian, S.; Jesus, R.A. "INFLUÊNCIA DO AZOTO NO CRESCIMENTO AÉREO E RADICAL DE CEBOLA ANTES DO INICIO DA FORMAÇÃO DO BOLBO". Revista das Ciências Agrárias 1 (2012): 1-10. http://hdl.handle.net/10174/5211.
    Published
  25. Bryla, David R.; Machado, Rui M. A.. "Comparative Effects of Nitrogen Fertigation and Granular Fertilizer Application on Growth and Availability of Soil Nitrogen during Establishment of Highbush Blueberry". Frontiers in Plant Science 2 2 (2011): 1-8.
    Published • 10.3389/fpls.2011.00046
  26. Pivetta, Carina Rejane; Heldwein, Arno Bernardo; Tazzo, Ivonete Fátima; Maldaner, Ivan Carlos; Dalbianco, Leandro; Streck, Nereu Augusto; Machado, Rui Manuel Almeida. "Evapotranspiração máxima do tomateiro sob estufa plástica em função de variáveis fenométricas e meteorológicas". Bragantia 70 3 (2011): 707-714.
    Published • 10.1590/S0006-87052011000300029
  27. Machado, RMA; Azevedo, Ricardo; Cabrita, Marcos. "Cebola- Uma cultura com elevado potencial agrónomico para o Alentejo". Vida Rural 1 (2011): 1-10. http://hdl.handle.net/10174/5119.
    Published
  28. Bryla, David R.; Shireman, A.D; Machado, RMA. "Effects of Method and Level of Nitrogen Fertilizer Application on Soil pH, Electrical Conductivity, and Availability of Ammonium and Nitrate in Blueberry.". Acta Horticulturae 868 (2010): 95-101.
    Published
  29. Pivetta, C.R; Machado, RMA; HELDWEIN, A.B; Soares, A.F.; Oliveira, Maria do Rosário G.. "Efeito da rega com injecção de ar na humidade do solo, dis­ponibilidade de azoto nítrico, condutividade eléctrica e pro­dutividade da alface cultivada em estufa plástica". Rev. de Ciências Agrárias 33 (2010): 70-78.
    Published
  30. Bryla, D.R.; Shireman, A.D.; MacHado, R.M.A.. "Effects of method and level of nitrogen fertilizer application on soil pH, electrical conductivity, and availability of ammonium and nitrate in Blueberry". Acta Horticulturae 868 (2010): 95-101. http://www.scopus.com/inward/record.url?eid=2-s2.0-77957147129&partnerID=MN8TOARS.
  31. Machado, RMA; Shaihidian, S.; Pivetta, C.R; Oliveira, Maria do Rosário G.. "Efeito da fertilização azotada na dinâmica de enraizamento e na produção comercial de cebola de dias médios no alentejo.". Rev. de Ciências Agrárias 32 2 (2009): 113-122.
    Published
  32. Shahidian, S.; Serralheiro, R.P.; Teixeira, J.L.; Santos, F.L.; Oliveira, M.R.G.; Costa, J.L.; Toureiro, C.; Haie, N.; Machado, R.M.. "Water saving with a PLC based adaptive irrigation system". Proceedings of the 3rd WSEAS International Conference on Energy Planning, Energy Saving, Environmental Education, EPESE '09, Renewable Energy Sources, RES '09, Waste Management, WWAI '09 (2009): 423-426. http://www.scopus.com/inward/record.url?eid=2-s2.0-78149329905&partnerID=MN8TOARS.
  33. Shahidian, S.; Serralheiro, R.P.; Teixeira, J.L.; Santos, F.L.; Oliveira, M.R.G.; Costa, J.L.; Toureiro, C.; Haie, N.; Machado, R.M.. "Drip irrigation using a PLC based adaptive irrigation system". WSEAS Transactions on Environment and Development 5 2 (2009): 209-218. http://www.scopus.com/inward/record.url?eid=2-s2.0-67049146516&partnerID=MN8TOARS.
  34. Machado, RMA; Bryla, David R.; Sena AM; Verissimo ML; Oliveira, Maria do Rosàrio G.. "Nitrogen requirements for growth and early fruit development of drip-irrigated processing tomato (Lycopersicon esculentum Mill.) in Portugal". Journal of Food Agriculture Environment 3.4 (2008): 215-218. http://world-food.net/wfl/nitrogen-requirements-for-growth-and-early-fruit-development-of-drip-irrigated-processing-tomato-lycopersicon-esculentum-mill-in-portugal/.
    Published
  35. Machado, RMA; Oliveira, Maria do Rosário G.. "Produção de cebola de dias curtos no Alentejo. Influência da adubação localizada.". Rev. de Ciências Agrárias 31 2 (2008): 51-57.
    Published
  36. Machado, RMA. "A condução da rega em culturas hortícolas". Vida Rural 1 (2008): 1-10. http://hdl.handle.net/10174/5120.
    Published
  37. Machado, R.M.A.; Bryla, D.R.; Veríssimo, M.L.; Sena, A.M.; Oliveira, M.R.G.. "Nitrogen requirements for growth and early fruit development of drip-irrigated processing tomato (Lycopersicon esculentum Mill.) in Portugal". Journal of Food, Agriculture and Environment 6 3-4 (2008): 215-218. http://www.scopus.com/inward/record.url?eid=2-s2.0-55249104755&partnerID=MN8TOARS.
  38. Machado, RMA; Oliveira, Maria do Rosário G.. "Efeito da profundidade de colocação do tubo de rega gota-a-gota na uniformidade de rega e na eficiência do uso da água em tomate de indústria". Rev. de Ciências Agrárias 30 (2007): 162-171.
    Published
  39. Bryla, David; Machado, rui. "Nitrogen Fertigation is Less Efficient but Safer than Granular Fertilizer Application in Newly-Planted Blueberry". Hortscience (Abstract) 1 (2007): 1-10. http://hdl.handle.net/10174/2513.
    Published
  40. Machado, Rui M. A.; Oliveira, Maria do Rosàrio G.. "Tomato root distribution, yield and fruit quality under different subsurface drip irrigation regimes and depths". Irrigation Science 24 1 (2005): 15-24.
    Published • 10.1007/s00271-005-0002-z
  41. Koutsos, T.V.; Dumas, Y; Paraskevopoulou-Paroussi G; Christou M; Machado, RMA; Prieto Losada MH; San Martin C; et al. "Study of the relationships and diversity in quality and composition of processing tomatoes among southern European countries". Agricoltura Mediterranea 135 (2005): 1-9.
    Published
  42. Machado, RMA; Aurélia, A.M.S.; Oliveira, Maria do Rosário G.. "Efeito da aplicação contínua de pequenas quantidades de azoto na água de rega no crescimento e na distribuição da matéria seca do tomate". Actas Portuguesas de Horticultura 3 (2005): 370-376.
    Published
  43. Machado, RMA; Oliveira, MRG. "Optimização da rega do tomate de indústria". Frutas, legumes e flores 1 (2005): 1-10. http://hdl.handle.net/10174/5121.
    Published
  44. Machado, Rui M.A.; Bussieres, P; Prieto Losada, M.H; Koutsos, T.V.; Ho, L.C. "Prediction of optimal harvest date for processing tomato based on the accumulation of daily heat units over the fruit ripening period". Prediction of optimal harvest date for processing tomato based on the accumulation of daily heat units over the fruit ripening period 79 3 (2004): 452-457. http://www.jhortscib.org/Vol79/79_3/19.htm.
    Published
  45. Machado, R.M.A.; Bussières, P.; Koutsos, T.V.; Prieto, M.H.; Ho, L.C.. "Prediction of optimal harvest date for processing tomato based on the accumulation of daily heat units over the fruit ripening period". Journal of Horticultural Science and Biotechnology 79 3 (2004): 452-457. http://www.scopus.com/inward/record.url?eid=2-s2.0-2642533874&partnerID=MN8TOARS.
  46. Machado, Rui. "Tomato root distribution, yield and fruit quality under subsurface drip irrigation". Plant and Soil (2003): http://dx.doi.org/10.1023/a:1026191326168.
    10.1023/a:1026191326168
  47. Machado, Rui M.A.; do Rosário, Maria; Oliveira, G.; Portas, Carlos A. M.. "Tomato root distribution, yield and fruit quality under subsurface drip irrigation". Plant and Soil 255 1 (2003): 333-341.
    Published • 10.1023/A:1026191326168
  48. Machado, Rui M.A.; Oliveira, Maria do Rosário G.. "Comparison of tomato root distributions by minirhizotron and destructive sampling". Plant and Soil 255 1 (2003): 375-385.
    Published • 10.1023/A:1026198919074
  49. Machado, Rui. "NITRATE AND PESTICIDE RESIDUES IN PROCESSING TOMATO FRUITS". Acta Horticulturae (2002): http://dx.doi.org/10.17660/actahortic.2002.579.76.
    10.17660/actahortic.2002.579.76
  50. Christou M; Dumas, Y; Chrysayi-Tobousbalides M; Bussieres, P; Ho L.C; Paroussis E; Bues R; et al. "Nitrate and pesticide residues in processing tomato fruits". Acta horticulturae 579 (2002): 439-444.
    Published
  51. Christou, M.; Dumas, Y.; Chrysayi-Tokousbalides, M.; Bussières, P.; Ho, L.C.; Paroussis, E.; Bues, R.; et al. "Nitrate and pesticide residues in processing tomato fruits". Acta Horticulturae 579 (2002): 439-444. http://www.scopus.com/inward/record.url?eid=2-s2.0-77958524958&partnerID=MN8TOARS.
  52. Machado, RMA; Oliveira, Maria do Rosário G.; Portas, Carlos A. M.. "EFFECT OF DRIP IRRIGATION AND FERTILIZATION ON TOMATO ROOTING PATTERNS". Acta Horticulturae 537 (2000): 313-319.
    Published
  53. Dumas, Y; Battilani, A; Bonetti, R.; Bussieres, P; Bues, R; Christou M; Chrysayi-Tobousbalides M; et al. "Construction et évaluation d'itinéraires techniques pour cultiver la tomate d'industrie de qualité avec des coûts limités et le respect de l'environnement". Tomato News 6 (2000): 68-72.
    Published
  54. Machado, R.M.A.; Oliveira, M.R.G.; Portas, C.A.M.. "Effect of drip irrigation and fertilization on tomato rooting patterns". Acta Horticulturae 537 (2000): 313-320. http://www.scopus.com/inward/record.url?eid=2-s2.0-0242534598&partnerID=MN8TOARS.
  55. Dumas, Y; Bussieres, P; Battilani, A; Cornillon, P; Prieto Losada, M.H; Branthôme, X; Di Lucca, G; et al. "QUALITOM, A EUROPEAN RESEARCH PROGRAMME TO BUILD AND TEST A TECHNICAL ITINERARY MODEL IN PROCESSING TOMATO CROPPING.". Acta horticulturae 487 (1999): 151-158.
    Published
  56. Machado, RMA; Rodriguez del Rincon, A; Portas, Carlos A. M.. "MECHANICAL HARVEST OF PROCESSING TOMATOES: INFLUENCE ON PERCENTAGE OF DAMAGED FRUIT AND IMPORTANCE OF THE RELATION GREEN FRUITS/ROTTEN FRUITS". Acta horticulturae 487 (1999): 237-242.
    Published
  57. Dumas, Y.; Bussières, P.; Battilani, A.; Cornillon, P.; Prieto Losada, M.H.; Branthôme, X.; Di Lucca, G.; et al. "Qualitom, a European research programme to build and test a technical itinerary model in processing tomato cropping". Acta Horticulturae 487 (1999): 151-158. http://www.scopus.com/inward/record.url?eid=2-s2.0-1542339800&partnerID=MN8TOARS.
  58. Machado, R.M.A.; Rodriguez Del Rincon, A.; Portas, C.A.M.. "Mechanical harvest of processing tomatoes: Influence on percentage of damaged fruit and importance of the relation green fruits / rotten fruits". Acta Horticulturae 487 (1999): 237-241. http://www.scopus.com/inward/record.url?eid=2-s2.0-2642549762&partnerID=MN8TOARS.
  59. Machado, RMA; Machado, A.P.. "Results of variety trial Caried out in 1996". Tomato News 8-9 (1997): 46-49.
    Published
  60. Machado, RMA; Machado, A.P.. "Cultivares de tomate de indústria, ensaio e avaliação". Frutas, legumes e flores 33 (1997): 17-19.
    Published
  61. Machado, Rui. "INFLUENCE OF DRIP-IRRIGATION ON THE TECHNOLOGICAL CHARACTERISTICS OF PROCESSING TOMATOES". Acta Horticulturae (1994): http://dx.doi.org/10.17660/actahortic.1994.376.36.
    10.17660/actahortic.1994.376.36
  62. Machado, RMA; Taborda, ML; Calado, A.M.; Portas, Carlos A. M.. "Two decades of evaluation of processing tomato cultivars in Portugal: Programmes Meti, Metiber AND EC- Amiton Trials". Acta Horticulturae 376 (1994): 123-126.
    Published
  63. Branthõme, X; Plé, Y; Machado, RMA. "INFLUENCE OF DRIP-IRRIGATION ON THE TECHNOLOGICAL CHARACTERISTICS OF PROCESSING TOMATOES". Acta Horticulturae 371 (1994): 285-290.
    Published
Magazine article
  1. Almendros, Patricia; Obrador, Ana; Alvarez, Jose ; Machado rma, Machado R, Rui Machado. "Biofortificacíon de Cereales con Micronutrientes", Agricultura, 2014
  2. Machado rma, Machado R, Rui Machado; Jesus, R.A.. "Avaliação de cultivares de mirtilo no Alentejo interior- Resultados preliminares", Revista Pequenos Frutos, 2013
  3. Machado rma, Machado R, Rui Machado; Azevedo, R; Cabrita, M. "Cebola - Uma cultura com elevado potencial agronómico para o Alentejo", Vida rural, 2011
  4. Machado rma, Machado R, Rui Machado. "A condução da rega-gota- gota em culturas hortícolas.", Vida rural, 2008
  5. Machado rma, Machado R, Rui Machado; Maria do Rosário Gamito Oliveira. "Optimização da rega do tomate de indústria", Frutas e flores , 2005
  6. Dumas, Y; Battilani, A; Bonetti, R; Bussieres, P; Bues, R; Christou; M; Chrysayi- Tobousbalides; et al. "Construction et évaluation d'itinéraires techniques pour cultiver la tomate d'industrie de qualité avec des coûts limités et le respect de l'environnement", Tomato news , 2000

Other

Other output
  1. Soilless Culture-An Intensive Production Method on Its Way to Sustainability. Special issue editor. 2023. Nazim Gruda; Machado rma, Machado R, Rui Machado. https://www.mdpi.com/journal/horticulturae/special_issues/V9O6ZG893F.
  2. Irrigation and fertilizer management for horticulture crops. Guest editor of the special issue entitled Irrigation and fertilizer management for horticulture crops. 2021. Machado rma, Machado R, Rui Machado. https://www.cell.com/heliyon/special-issues/irrigation-fertiliser-management.
  3. Soil science, water and nitrates management in horticultural production. Guest editor of the special issue entitled Soil science, water and nitrates management in horticultural production. 2019. Machado rma, Machado R, Rui Machado. https://www.mdpi.com/journal/horticulturae/special_issues/Management_Horticultural_Production.
  4. Potential of Elemental Sulfur Fertigation to Reduce High Soil pH for Production of Highbush Blueberry. 2012. Machado, RMA; Bryla, DR. http://hdl.handle.net/10174/5151.
  5. Effects of Salinity Induced by Ammonium Sulfate Fertilizer on Root and Shoot Growth of Highbush Blueberry. 2012. Machado, Rui; Bryla, DR. http://hdl.handle.net/10174/5184.
Activities

Oral presentation

Presentation title Event name
Host (Event location)
2022 Aumentar a sustentabilidade dos substratos para produzir vegetais de folhas sem reduzir o rendimento e a qualidade
(Évora, Portugal)
2021 Physicochemical characteristics of substrates of the mixture of coir with municipal solid waste compost and with biochar VIII South-Eastern Europe Symposium on Vegetables and Potatoes.
(Ohrid, Macedonia, Macedonia)
2021 Fresh yield and phytochemical accumulation on spinach grown in different coir types
(Ohrid)
2018/07/24 Salinity: Effect on Vegetable Crop Growth. Management Practices to Prevent and Mitigate Soil Salinization. Workshop Soil Fertility and Climate Change
Na Universidade de Basilicata, Na Universidade de Basilicata, Itália. (Matera, Italy)
2017 Influência do substrato e do teor de azoto no crescimento e qualidade de vegetais de folhas Jornadas ICAAM - um olhar sobre os projetos exploratórios do ICAAM
Universidade de Évora (Évora, Portugal)
2012/06 Effects of salinity induced by ammonium sulfate fertilizer on root and shoot growth of highbush blueberry International Symposium on vaccinium and ohter superfruits
(Maastricht)
2003 A cultura de tomate de indústria em Portugal XXXIII Seminario de técnicos y especialistas en Horticultura
(Badajoz, Spain)
2001 Nitrate and Pesticide residues in processing tomato fruits
(Thessaloniki , Greece)
2000 Management of harvest date prevision Closing workshop of the Qualitom research Programme
(Marseille, France)
1999 Effect of drip irrigation and fertilization on tomato rooting patterns III International Symposium on Irrigation of Horticultural Crops
(Estoril, Portugal)
1989 Qualitom, a european research programme to build and teste a technical itinerary model in processing tomato cropping.
(Pamplona, Spain)

Supervision

Thesis Title
Role 		Degree Subject (Type)
Institution / Organization
2023 - Current Efeito da condutividade elétrica da solução nutritiva na produção e qualidade da alface produzida em substrato com composto orgânico municipal
Supervisor
2022 - 2022 Utilização de compostos orgânicos municipais e biochar como componentes de substratos para produção de plântulas. Tese de Mestrado em Engenharia Agronómica
Supervisor
Universidade de Évora, Portugal
2021 - 2021 Influência da aplicação de composto orgânico municipal nas características do solo, na produção e na qualidade do espinafre. Universidade de Évora.
Supervisor
Universidade de Évora, Portugal
2016 - 2017 Influência do substrato na fitossanidade, na produção e na qualidade de morangos produzidos em sistema hidropónico fechado “New Growing System
Supervisor
Universidade de Évora, Portugal
2015 - 2015 Influência do substrato no crescimento de espinafre (Spinacia oleracea L.)
Supervisor
2014 - 2014 Necessidades de azoto da beldroega (Portulaca oleracea linn.) cultivada em substrato.
Supervisor
2011 - 2012 Avaliação do comportamento agronómico de cultivares de mirtilo (Vaccinium Corymbosum L.) no Alentejo
Supervisor
2008 - 2010 Posição dos gotejadores e cobertura do solo com plástico, crescimento radicular, produtividade e qualidade do melão. Universidade Federal de Santa Maria (UFSM), Brasil. Tese de Doutoramento, Orientação partilhada com o Prof. Arno Bernardo Heldwein
Supervisor
Universidade de Évora, Portugal

Conference scientific committee

Conference name Conference host
2024/09 - Current
2023 - Current X South­Eastern Europe Symposium on Vegetables and Potatoes
2023 - 2023 IX South-Eastern Europe Symposium on Vegetables and Potatoes

Journal scientific committee

Journal title (ISSN) Publisher
2022 - Current Technology in Horticulture
2020/01/01 - Current Plants MDPI
2016 - Current Frontiers in crop science
2014 - Current International Journal of Plant Biology