Pirjo Mäkelä

Publications

Research output per year 1994 2008 2009 2010 2011 2012 2015 2018 2020 2024

• 86 Article
• 36 Conference contribution
• 10 Chapter
• 7 Review Article
• 15 More
  • 6 Conference article
  • 3 Anthology or special issue
  • 2 Poster
  • 2 Patent
  • 1 Abstract
  • 1 Paper

Research output per year

Research output per year

Search results

• 2024

  Cultivation of forage maize in boreal conditions – Assessment of trade-offs between increased productivity and environmental impact

  Lehtilä, A., Taghizadeh-Toosi, A., Roitto, M., Kokkonen, T., Mäkelä, P. S. A., Sairanen, A. & Tuomisto, H. L., Mar 2024, In: Animal Feed Science and Technology. 309, 17 p., 115878.

  Research output: Contribution to journal › Article › Scientific › peer-review

  Open Access

  File
• 2023

  Application of UAV multispectral imaging for determining the characteristics of maize vegetation

  Änäkkälä, M. A., Lehtilä, A., Mäkelä, P. & Lajunen, A., 10 May 2023.

  Research output: Conference materials › Abstract › peer-review

• Application of UAV multispectral imaging for determining the characteristics of maize vegetation

  Änäkkälä, M. A., Lehtilä, A., Mäkelä, P. & Lajunen, A., 10 May 2023, In: Agronomy Research. 21, Special issue 1

  Research output: Contribution to journal › Article › Scientific › peer-review

  Open Access

  File

• Impact of maize plant residue on soil temperature dynamics in a dryland environment in Kenya

  Tuure, J., Mganga, K. Z., Räsänen, M., Mäkelä, P., Pellikka, P. & Alakukku, L., 21 Sept 2023.

  Research output: Conference materials › Poster › peer-review

• Response of forage maize yield and quality to mulch film and harvest time in Northern Europe

  Lehtilä, A., Sairanen, A., Jaakkola, S., Kokkonen, T., Kuoppala, K., Jokiniemi, T., Wasonga, D. & Mäkelä, P. S. A., 2023, In: Agricultural and Food Science. 32, 1, p. 22-35 14 p.

  Research output: Contribution to journal › Article › Scientific › peer-review

  Open Access

  File

• Root-applied glycinebetaine controls nitrate content and edible quality of lettuce in continuous commercial hydroponic greenhouse production

  Uusitupa, J., Edelmann, M., Simpura, I., Jokinen, K. & Mäkelä, P. S. A., 15 Jun 2023, In: Frontiers in sustainable food systems. 7, 11 p.

  Research output: Contribution to journal › Article › Scientific › peer-review

  Open Access

  File
• 2022

  Korjuuajankohdan, typpilannoituksen ja katekalvon käytön vaikutus maissisäilörehun satoon ja laatuun Etelä-Suomessa

  Liimatainen, A., Mäkelä, P., Sairanen, A., Kokkonen, T., Jokiniemi, T., Kuoppala, K. & Jaakkola, S., 2022.

  Research output: Conference materials › Paper

• Maissikasvuston ominaisuuksien määrittäminen ilmakuvien avulla

  Änäkkälä, M. A., Lajunen, A., Jaakkola, S., Mäkelä, P., Lehtilä, A. & Jokiniemi, T., 2022.

  Research output: Conference materials › Poster

• Root-Applied Glycinebetaine Decreases Nitrate Accumulation and Improves Quality in Hydroponically Grown Lettuce

  Jokinen, K., Salovaara, A-K. J., Wasonga, D., Edelmann, M., Simpura, I. & Mäkelä, P., 1 Jan 2022, In: Food Chemistry. 366, 9 p., 130558.

  Research output: Contribution to journal › Article › Scientific › peer-review

  Open Access

  File

• Yield, Quality and Nitrogen Use of Forage Maize under Different Nitrogen Application Rates in Two Boreal Locations

  Liimatainen, A., Sairanen, A., Jaakkola, S., Kokkonen, T., Kuoppala, K., Jokiniemi, T. & Mäkelä, P. S. A., Apr 2022, In: Agronomy. 12, 4, 13 p., 887.

  Research output: Contribution to journal › Article › Scientific › peer-review

  Open Access
• 2021

  Can foliar-applied nutrients improve caraway (Carum carvi L.) seed oil composition?

  Lizarazo, C., Lampi, A-M. & Mäkelä, P., 15 Oct 2021, In: Industrial Crops and Products. 170, 9 p., 113793.

  Research output: Contribution to journal › Article › Scientific › peer-review

  Open Access

  File

• Glysiinibetaiinilla voidaan hallita salaatin nitraattipitoisuutta: Salaatin nitraatti alas

  Uusitupa, J. V. E., Jokinen, K. & Mäkelä, P., 11 Feb 2021, In: Puutarha & kauppa. 3/2021, p. 10-11 2 p.

  Research output: Contribution to journal › Article › Professional

• Nitraattipitoisuuden alentaminen kasveissa

  Jokinen, K. & Mäkelä, P., 15 Jan 2021, Patent No. 128830, 15 Jan 2021

  Research output: Patent

• Plant residue mulch increases measured and modelled soil moisture content in the effective root zone of maize in semi-arid Kenya

  Tuure, J., Räsänen, M., Hautala, M., Pellikka, P., Mäkelä, P. & Alakukku, L., May 2021, In: Soil & Tillage Research. 209, 15 p., 104945.

  Research output: Contribution to journal › Article › Scientific › peer-review

  Open Access

  File

• Red-Green-Blue and Multispectral Imaging as Potential Tools for Estimating Growth and Nutritional Performance of Cassava under Deficit Irrigation and Potassium Fertigation

  Wasonga, D., Kleemola, J. H., Alakukku, L., Yaw, A. & Mäkelä, P., 18 Feb 2021, In: Remote Sensing. 13, 4, 20 p., 598.

  Research output: Contribution to journal › Article › Scientific › peer-review

  Open Access

  File

• Reduction of nitrate content in plants

  Jokinen, K. & Mäkelä, P., 6 Jul 2021, Patent No. 11,051,464, 6 Jul 2021

  Research output: Patent

• 2020

  Apoplastic Hydrogen Peroxide in the Growth Zone of the Maize Primary Root. Increased Levels Differentially Modulate Root Elongation under Well-Watered and Water-Stressed Conditions

  Voothuluru, P., Mäkelä, P., Zhu, J., Yamaguchi, M., Oliver, M. J., Simmonds, J. & Sharp, R., 21 Apr 2020, In: Frontiers in plant science. 11, p. 1-18 18 p., 392.

  Research output: Contribution to journal › Article › Scientific › peer-review

  Open Access

  File

• Differences in root morphological features and shoot P accumulation at different soil P levels

  Knuutila, K., Junklewitz, P., Liespuu, J., Mäkelä, P., Owusu-Sekyere, A., Tasanko, E., Alakukku, L. & Seppänen, M., 2020, Meeting the future demands for grassland production: Proceedings of the 28th General Meeting of the European Grassland Federation. . Virkajärvi, P., Hakala, K., Hakojärvi, M., Helin, J., Herzon, I., Jokela, V., Peltonen, S., Rinne, M., Seppänen, M. & Uusi-Kämppä, J. (eds.). Wageningen Academic Publishers, p. 97-99 3 p. (Grassland Science in Europe; vol. 25).

  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Scientific › peer-review

  Open Access

  File

• Glysiinibetaiinilla hyviä tuloksia salaatilla

  Jokinen, K., Salovaara, A-K. J., Edelmann, M. & Mäkelä, P., Jan 2020, In: Puutarha & kauppa. 2020, 2, p. 9 1 p.

  Research output: Contribution to journal › Article › Professional

• Growth Response of Cassava to Deficit Irrigation and Potassium Fertigation During the Early Growth Phase

  Wasonga, D., Kleemola, J., Alakukku, L. & Mäkelä, P., Mar 2020, In: Agronomy. 10, 3, 14 p., 321.

  Research output: Contribution to journal › Article › Scientific › peer-review

  Open Access

  File

• Potassium Fertigation With Deficit Irrigation Improves the Nutritive Quality of Cassava

  Wasonga, D. O., Kleemola, J., Alakukku, L. & Mäkelä, P. S. A., 30 Oct 2020, In: Frontiers in sustainable food systems. 4, 12 p., 575353.

  Research output: Contribution to journal › Article › Scientific › peer-review

  Open Access

  File

• Recycling sludge on cropland as fertilizer – advantages and risks

  Seleiman, M., Santanen, A. & Mäkelä, P., Apr 2020, In: Resources, Conservation and Recycling. 155, 10 p., 104647.

  Research output: Contribution to journal › Review Article › peer-review

  Open Access

  File

• Seedling Growth and Phosphorus Uptake in Response to Different Phosphorus Sources

  Mäkelä, P., Wasonga, D., Solano Hernandez, A. & Santanen, A., Aug 2020, In: Agronomy. 10, 8, 11 p., 1089.

  Research output: Contribution to journal › Article › Scientific › peer-review

  Open Access

  File

• Sustainable mixed cropping systems for the boreal-nemoral region

  Lizarazo Torres, C., Tuulos, A., Jokela, V. & Mäkelä, P., 22 Jul 2020, In: Frontiers in sustainable food systems. 4, p. 1-15 15 p., 103.

  Research output: Contribution to journal › Review Article › peer-review

  Open Access

  File
• 2019

  Osmoprotectant-mediated abiotic stress tolerance: Recent advances and future perspectives

  Hossain, M. A. (ed.), Kumar, V. (ed.), Burritt, D. (ed.), Fujita, M. (ed.) & Mäkelä, P. (ed.), 5 Dec 2019, Springer. 342 p.

  Research output: Book/Report › Anthology or special issue › Scientific › peer-review

• Roles of endogenous glycinebetaine in plant abiotic stress responses

  Mäkelä, P., Jokinen, K. & Himanen, K., 5 Dec 2019, Osmoprotectant-mediated abiotic stress tolerance: Recent advances and future perspectives. Hossain, M. A., Kumar, V., Burritt, D., Fujita, M. & Mäkelä, P. (eds.). 1 ed. Springer, p. 153-173

  Research output: Chapter in Book/Report/Conference proceeding › Chapter › Scientific › peer-review

  Open Access

  File

• The root growth of forage grasses at different soil P levels

  Knuutila, K., Junklewitz, P., Liespuu, J., Mäkelä, P., Owusu-Sekuyre, A., Alakukku, L. & Seppänen, M., 2019, Improving sown grasslands through breeding and management: Proceedings of the Joint 20th Symposium of the European Grassland Federation and the 33rd Meeting of the EUCARPIA Section "Fodder Crops and Amenity Grasses". Huguenin-Elie, O., Studer, B., Kölliker, R., Reheul, D., Probo, M., Barre, P., Feuerstein, U., Roldán-Ruiz, I., Mariotte, P. & Hopkins, A. (eds.). p. 158-160 3 p. (Eucarpia; vol. 24).

  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Scientific › peer-review

  Open Access

  File
• 2018

  A transnational and holistic breeding approach is needed for sustainable wheat production in the Baltic Sea region

  Chawade, A., Armoniene, R., Berg, G., Brazauskas, G., Frostgard, G., Geleta, M., Gorash, A., Henriksson, T., Himanen, K., Ingver, A., Johansson, E., Jorgensen, L. N., Koppel, M., Koppel, R., Makela, P., Ortiz, R., Podyma, W., Roitsch, T., Ronis, A., Svensson, J. T., & 2 othersVallenback, P. & Weih, M., Dec 2018, In: Physiologia Plantarum. 164, 4, p. 442-451 10 p.

  Research output: Contribution to journal › Review Article › peer-review

  Open Access

  File

• Cultivating forage maize for biomass and bioenergy in a sub-boreal climate

  Epie, K. E., Artigas, O. M., Santanen, A., Mäkelä, P. S. A. & Stoddard, F. L., 2018, In: Agricultural and Food Science. 27, 3, p. 190-198 9 p.

  Research output: Contribution to journal › Article › Scientific › peer-review

  Open Access

  File

• Effects of Crop Leaf Angle on LAI-Sensitive Narrow-Band Vegetation Indices Derived from Imaging Spectroscopy

  Zou, X., Haikarainen, I., Haikarainen, I. P., Mäkelä, P., Mõttus, M. & Pellikka, P., Sept 2018, In: Applied sciences (Basel). 8, 9, 17 p., 1435.

  Research output: Contribution to journal › Article › Scientific › peer-review

  Open Access

  File

• Evaluation of the Bioactivity of Water Extracts from Dicotyledonous Crops on Model Weeds and Pathogens

  Valenzuela Averruz, L. E., Zou, L., Santanen, A. A. & Mäkelä, P. S. A., Jul 2018, In: Journal of agriculture food and development. 4, p. 17-22 6 p.

  Research output: Contribution to journal › Article › Scientific › peer-review

  Open Access

  File

• Fertilizer and intercropped legumes as nitrogen source for Jerusalem artichoke (Helianthus tuberosus L.) tops for bioenergy

  Epie, K. E., Santanen, A., Makela, P. S. A. & Stoddard, F. L., 2018, In: Agricultural and Food Science. 27, 3, p. 199-205 7 p.

  Research output: Contribution to journal › Article › Scientific › peer-review

  Open Access

  File

• Ion beam irradiation mutagenesis in rye (Secale cereale L.), linseed (Linum usitatissimum L.) and faba bean (Vicia faba L.)

  Khazaei, H., Mäkelä, P. S. A. & Stoddard, F. L., 2018, In: Agricultural and Food Science. 27, 3, p. 146-151 7 p.

  Research output: Contribution to journal › Article › Scientific › peer-review

  Open Access

  File

• Projektikurssilta työelämätaitoja maataloustieteiden opiskelijoille

  Kymäläinen, H-R., Kokkonen, T. J., Muukkonen-van der Meer, H-M., Mäkelä, P. S. A., Seppänen, M. M. & Lakkala, M. H., 5 Jul 2018, Maataloustieteen päivät 2018: Suomen Maataloustieteellisen Seuran tiedote nro 35. Suomen maataloustieteellinen seura, 7 p. (Suomen Maataloustieteellisen Seuran tiedote; no. 35).

  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Scientific

  Open Access

• Research-based evaluation of customer project courses in agricultural sciences

  Kymäläinen, H-R., Kokkonen, T., Muukkonen, H., Mäkelä, P., Seppänen, M. & Lakkala, M., Jul 2018, EDULEARN18 Proceedings: 10th International Conference on Education and New Learning Technologies July 2nd-4th, 2018 — Palma, Spain. Gómez Chova, L., López Martínez, A. & Candel Torres, I. (eds.). Spain: IATED Academy, p. 1505-1514 10 p. (EDULEARN Proceedings; no. 18).

  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Scientific

  Open Access

  File
• 2017

  Aiempien maataloustieteiden opintojen merkitys projektityön toteuttamisessa

  Mäkelä, P. S. A., Kymäläinen, H-R., Lakkala, M. H. & Muukkonen, H., 22 Dec 2017, In: Yliopistopedagogiikka. 24, 2, p. 43-46 4 p.

  Research output: Contribution to journal › Article › Scientific

  Open Access

• Chemical composition and in vitro digestibility of wholecrop maize fertilized with synthetic fertilizer or digestate and harvested at two maturity stages in Boreal growing conditions

  Seleiman, M. F., Selim, S., Jaakkola, S. & Makela, P. S. A., 2017, In: Agricultural and Food Science. 26, 1, p. 47-55 9 p.

  Research output: Contribution to journal › Article › Scientific › peer-review

  Open Access

  File
• 2016

  Englanti kasvintuotantotieteiden opetuskielenä – mahdollisuudet ja haasteet

  Mäkelä, P. & Jokela, V., 22 Dec 2016, In: Yliopistopedagogiikka. 23, 2, p. 55-57 3 p.

  Research output: Contribution to journal › Article › Scientific

  Open Access

• Kasvustokäsittelyn glyfosaattijäämät ja siemenen itäminen

  Mäkelä, P., Puhakainen, T. & Hakala, K., 2016, In: Kylvösiemen : Kylvösiemenliiton tiedotuslehti. 55, 4, p. 12-13 2 p.

  Research output: Contribution to journal › Article › Professional

• 2015

  Effects of break crops on yield and grain protein concentration of barley in a Boreal climate

  Zou, L., Yli-Halla, M. J., Stoddard, F. L. & Mäkelä, P. S. A., 15 Jun 2015, In: PLoS One. 10, 6, 13 p., 0130765.

  Research output: Contribution to journal › Article › Scientific › peer-review

  Open Access

  File

• Forage and seed yield of winter turnip rape established as a mixed crop with cereals

  Tuulos, A., Turakainen, M., Jaakkola, S., Kleemola, J. & Makela, P. S. A., 2015, In: Journal of Agricultural Science. 153, 2, p. 222-235 14 p.

  Research output: Contribution to journal › Article › Scientific › peer-review

• Fusarium-suppressive effects of green manure of turnip rape

  Zou, L., Tuulos, A. P., Mikkonen, A. S., Stoddard, F. L., Lindström, A. K., Kontro, M. H., Koponen, H. K. & Mäkelä, P. S. A., 2015, In: European Journal of Soil Biology. 69, p. 41-51 11 p.

  Research output: Contribution to journal › Article › Scientific › peer-review

• Nitrous oxide emissions from perennial grass-legume intercrop for bioenergy use

  Epie, K. E., Saikkonen, L., Santanen, A., Jaakkola, S., Mäkelä, P., Simojoki, A. & Stoddard, F. L., 2015, In: Nutrient Cycling in Agroecosystems. 101, 2, p. 211-222 12 p.

  Research output: Contribution to journal › Article › Scientific › peer-review

• Retrieval of leaf chlorophyll content in field crops using narrow-band indices: effects of leaf area index and leaf mean tilt angle

  Zou, X., Hernández-Clemente, R., Tammeorg, P., Torres, C. L., Stoddard, F. L., Mäkelä, P., Pellikka, P. & Mõttus, M., 2015, In: International Journal of Remote Sensing. 36, 24, p. 6031-6055 25 p.

  Research output: Contribution to journal › Article › Scientific › peer-review

• Winter turnip rape as soil N scavenging catch crop in a cool humid climate

  Tuulos, A., Yli-Halla, M., Stoddard, F. & Mäkelä, P., 2015, In: Agronomy for Sustainable Development. 35, p. 359-366 8 p.

  Research output: Contribution to journal › Article › Scientific › peer-review

• Yield gap and sustainable cropping systems. Proceedings of the NOVA Crop Science Course 2015.

  Mäkelä, P. S. A. (ed.) & Puhakainen, T. A. (ed.), 17 Dec 2015, Helsinki: University of Helsinki. 49 p. (Department of Agricultural Sciences Publication Series; no. 41)

  Research output: Book/Report › Anthology or special issue › Scientific › peer-review

  Open Access

• Yield of spring cereals in mixed stands with undersown winter turnip rape

  Tuulos, A., Turakainen, M., Kleemola, J. & Makela, P., 2015, In: Field Crops Research. 174, p. 71-78 8 p.

  Research output: Contribution to journal › Article › Scientific › peer-review
• 2014

  Biochar application to a fertile sandy clay loam in boreal conditions: effects on soil properties and yield formation of wheat, turnip rape and faba bean

  Tammeorg, P., Simojoki, A., Mäkelä, P., Stoddard, F., Alakukku, L. & Helenius, J., 2014, In: Plant and Soil. 374, 1-2, p. 89–107 18 p.

  Research output: Contribution to journal › Article › Scientific › peer-review

• Interference potential of buckwheat, fababean, oilseed hemp, vetch, white lupin and caraway to control couch grass weed

  Zou, L., Santanen, A., Tein, B., Stoddard, F. & Mäkelä, P., 2014, In: Allelopathy Journal. 33, 2, p. 227-235 9 p.

  Research output: Contribution to journal › Article › Scientific › peer-review

• Photographic measurement of leaf angles in field crops

  Zou, X., Mottus, M., Tammeorg, P., Lizarazo Torres, C., Takala, T., Pisek, J., Makela, P., Stoddard, F. L. & Pellikka, P., 2014, In: Agricultural and Forest Meteorology. 184, p. 137-146 10 p.

  Research output: Contribution to journal › Article › Scientific › peer-review

  Open Access

  File