All Stories

  1. Short-Term Repeatability of Multispectral UAV Measurements and Implications for Vegetation Index Stability

    Article • Agronomy, June 2026, MDPI AG

    Professor Pirjo S. A. Mäkelä

  2. Competitive Ability of Three-Crop Mixtures and Pure Stands of Pea, Oats, and Camelina on Weed Diversity in Organic Farming

    Article • Agronomy, June 2026, MDPI AG

    Professor Pirjo S. A. Mäkelä

  3. Potential for Cultivating Various Legume Species in Controlled Environment Agriculture

    Article • Horticulturae, March 2026, MDPI AG

    Professor Pirjo S. A. Mäkelä

  4. Chemical composition of lettuce following root-application of osmolytes in hydroponic cultivation

    Article • Food Chemistry, March 2026, Elsevier

    Professor Pirjo S. A. Mäkelä

  5. Integrating field camera imagery for monitoring maize phenology, biophysical traits, and agroclimatic factors in smallholder farms

    Article • Computers and Electronics in Agriculture, January 2026, Elsevier

    Professor Pirjo S. A. Mäkelä

  6. Crop Growth and Yield in Three-Crop Mixtures and Sole Stands in an Organic System

    Article • Agronomy, December 2025, MDPI AG

    Professor Pirjo S. A. Mäkelä

  7. An unmanned aerial vehicle-based cotton nitrogen nutrition index estimation model utilizing feature selection and machine learning

    Article • Computers and Electronics in Agriculture, November 2025, Elsevier

    Professor Pirjo S. A. Mäkelä

  8. Maize (Zea mays L.) yields and water productivity as affected by cowpea (Vigna unguiculata (L.) Walp.) intercropping over five consecutive growing seasons in a semi-arid environment in Kenya

    Article • Agricultural Water Management, October 2025, Elsevier

    Professor Pirjo S. A. Mäkelä

  9. Irrigation at an Early Growth Stage in Water‐Limited Conditions Improves Wheat Nitrogen Use

    Article • Journal of Agronomy and Crop Science, May 2025, Wiley

    Professor Pirjo S. A. Mäkelä

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

    Article • Animal Feed Science and Technology, March 2024, Elsevier

    Professor Pirjo S. A. Mäkelä

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

    Article • Frontiers in Sustainable Food Systems, June 2023, Frontiers

    Professor Pirjo S. A. Mäkelä

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

    Article • Agricultural and Food Science, March 2023, Agricultural and Food Science

    Professor Pirjo S. A. Mäkelä

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

    Article • Agronomy, April 2022, MDPI AG

    Professor Pirjo S. A. Mäkelä

  14. Root-applied glycinebetaine decreases nitrate accumulation and improves quality in hydroponically grown lettuce

    Article • Food Chemistry, January 2022, Elsevier

    Professor Pirjo S. A. Mäkelä

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

    Article • Industrial Crops and Products, October 2021, Elsevier

    Professor Pirjo S. A. Mäkelä

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

    Article • Soil and Tillage Research, May 2021, Elsevier

    Professor Pirjo S. A. Mäkelä

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

    Article • Remote Sensing, February 2021, MDPI AG

    Professor Pirjo S. A. Mäkelä

  18. Potassium Fertigation With Deficit Irrigation Improves the Nutritive Quality of Cassava

    Article • Frontiers in Sustainable Food Systems, October 2020, Frontiers

    Professor Pirjo S. A. Mäkelä

  19. Seedling Growth and Phosphorus Uptake in Response to Different Phosphorus Sources

    Article • Agronomy, July 2020, MDPI AG

    Professor Pirjo S. A. Mäkelä

  20. Sustainable Mixed Cropping Systems for the Boreal-Nemoral Region

    Article • Frontiers in Sustainable Food Systems, July 2020, Frontiers

    Professor Pirjo S. A. Mäkelä

  21. 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

    Article • Frontiers in Plant Science, April 2020, Frontiers

    Professor Pirjo S. A. Mäkelä

  22. Recycling sludge on cropland as fertilizer – Advantages and risks

    Article • Resources Conservation and Recycling, April 2020, Elsevier

    Professor Pirjo S. A. Mäkelä

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

    Article • Agronomy, February 2020, MDPI AG

    Professor Pirjo S. A. Mäkelä

  24. Osmoprotectant-Mediated Abiotic Stress Tolerance in Plants

    Article • January 2019, Springer Science + Business Media

    Professor Pirjo S. A. Mäkelä

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

    Article • Agricultural and Food Science, September 2018, Agricultural and Food Science

    Professor Frederick Stoddard, Professor Pirjo S. A. Mäkelä

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

    Article • Agricultural and Food Science, September 2018, Agricultural and Food Science

    Professor Frederick Stoddard, Professor Pirjo S. A. Mäkelä

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

    Article • Agricultural and Food Science, September 2018, Agricultural and Food Science

    Dr Hamid Khazaei, Professor Frederick Stoddard, Professor Pirjo S. A. Mäkelä

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

    Article • Applied Sciences, August 2018, MDPI AG

    Professor Pirjo S. A. Mäkelä

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

    Article • Journal of Agriculture Food and Development, July 2018, Journal of Agriculture Food and Development

    Professor Pirjo S. A. Mäkelä

  30. RESEARCH-BASED EVALUATION OF CUSTOMER PROJECT COURSES IN AGRICULTURAL SCIENCES

    Article • July 2018, IATED Academy, S.L.

    Professor Pirjo S. A. Mäkelä

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

    Article • Physiologia Plantarum, April 2018, Wiley

    Lise Nistrup Jorgensen, Mati Koppel, Kristiina Himanen, Professor Pirjo S. A. Mäkelä

  32. Chemical composition and in vitro digestibility of whole-crop maize fertilized with synthetic fertilizer or digestate and harvested at two maturity stages in Boreal growing conditions

    Article • Agricultural and Food Science, April 2017, Agricultural and Food Science

    Professor Pirjo S. A. Mäkelä

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

    Article • International Journal of Remote Sensing, November 2015, Taylor & Francis

    Professor Pirjo S. A. Mäkelä, Professor Frederick Stoddard

  34. Fusarium-suppressive effects of green manure of turnip rape

    Article • European Journal of Soil Biology, July 2015, Elsevier

    Professor Pirjo S. A. Mäkelä, Professor Frederick Stoddard

  35. Effects of Break Crops on Yield and Grain Protein Concentration of Barley in a Boreal Climate

    Article • PLOS One, June 2015, PLOS

    Professor Pirjo S. A. Mäkelä, Professor Frederick Stoddard

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

    Article • Field Crops Research, March 2015, Elsevier

    Professor Pirjo S. A. Mäkelä

  37. Nitrous oxide emissions from perennial grass–legume intercrop for bioenergy use

    Article • Nutrient Cycling in Agroecosystems, January 2015, Springer Science + Business Media

    Professor Pirjo S. A. Mäkelä, Professor Frederick Stoddard

  38. Erratum to: Winter turnip rape as a soil N scavenging catch crop in a cool humid climate

    Article • Agronomy for Sustainable Development, June 2014, Springer Science + Business Media

    Professor Pirjo S. A. Mäkelä, Professor Frederick Stoddard

  39. Short-term effects of biochar on soil properties and wheat yield formation with meat bone meal and inorganic fertiliser on a boreal loamy sand

    Article • Agriculture Ecosystems & Environment, June 2014, Elsevier

    Professor Pirjo S. A. Mäkelä, Professor Frederick Stoddard

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

    Article • Agronomy for Sustainable Development, April 2014, Springer Science + Business Media

    Professor Pirjo S. A. Mäkelä, Professor Frederick Stoddard

  41. Erratum to: 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

    Article • Plant and Soil, March 2014, Springer Science + Business Media

    Professor Pirjo S. A. Mäkelä, Professor Frederick Stoddard

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

    Article • The Journal of Agricultural Science, March 2014, Cambridge University Press

    Professor Pirjo S. A. Mäkelä

  43. Photographic measurement of leaf angles in field crops

    Article • Agricultural and Forest Meteorology, January 2014, Elsevier

    Professor Pirjo S. A. Mäkelä, Professor Frederick Stoddard

  44. Effect of Management of Sulfonylurea Resistant Stellaria media on Barley Yield

    Article • ISRN Agronomy, December 2013, Wiley

    Professor Pirjo S. A. Mäkelä

  45. Biomass yield and quality of bioenergy crops grown with synthetic and organic fertilizers

    Article • Biomass and Bioenergy, December 2013, Elsevier

    Professor Pirjo S. A. Mäkelä, Professor Frederick Stoddard

  46. 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

    Article • Plant and Soil, August 2013, Springer Science + Business Media

    Professor Pirjo S. A. Mäkelä, Professor Frederick Stoddard

  47. Improved sustainability of feedstock production with sludge and interacting mycorrhiza

    Article • Chemosphere, May 2013, Elsevier

    Professor Pirjo S. A. Mäkelä, Professor Frederick Stoddard

  48. Feedstock quality and growth of bioenergy crops fertilized with sewage sludge

    Article • Chemosphere, November 2012, Elsevier

    Professor Pirjo S. A. Mäkelä, Professor Frederick Stoddard

  49. Role of Potassium in Barley Plant Stand Architecture and Yield Formation

    Article • Communications in Soil Science and Plant Analysis, November 2012, Taylor & Francis

    Professor Pirjo S. A. Mäkelä

  50. Irrigation of Field Crops in the Boreal Region

    Article • March 2012, IntechOpen

    Professor Pirjo S. A. Mäkelä

  51. Adaptation of Boreal Field Crop Production to Climate Change

    Article • September 2011, IntechOpen

    Professor Pirjo S. A. Mäkelä

  52. Uniculm and conventional tillering barley accessions under northern growing conditions

    Article • The Journal of Agricultural Science, July 2011, Cambridge University Press

    Professor Pirjo S. A. Mäkelä

  53. Revitalizing the winter turnip rape crop in the northern latitudes

    Article • Acta Agriculturae Scandinavica Section B - Soil & Plant Science, April 2011, Taylor & Francis

    Professor Pirjo S. A. Mäkelä, Professor Frederick Stoddard

  54. Drought Effect on Grain Number and Grain Weight at Spike and Spikelet Level in Six-Row Spring Barley

    Article • Journal of Agronomy and Crop Science, November 2010, Wiley

    Professor Pirjo S. A. Mäkelä

  55. Spring wheat response to timing of water deficit through sink and grain filling capacity

    Article • Field Crops Research, November 2009, Elsevier

    Professor Pirjo S. A. Mäkelä

  56. Seed production of two meadow fescue cultivars differing in growth habit

    Article • Agricultural and Food Science, May 2009, MTT Agrifood Research Finland

    Professor Pirjo S. A. Mäkelä

  57. Effects of Selenium on Maize Ovary Development at Pollination Stage Under Water Deficits

    Article • Agricultural Sciences in China, November 2008, Elsevier

    Professor Pirjo S. A. Mäkelä

  58. Spring Cereals: From Dynamic Ideotypes to Cultivars in Northern Latitudes

    Article • Agricultural and Food Science, September 2008, MTT Agrifood Research Finland

    Professor Pirjo S. A. Mäkelä

  59. Syysrypsin kylvö kevätviljaan

    Article • Suomen Maataloustieteellisen Seuran Tiedote, January 2008, Suomen Maataloustieteellisen Seuran Tiedote

    Professor Pirjo S. A. Mäkelä

  60. Imaging and Quantifying Carbohydrate Transport to the Developing Ovaries of Maize

    Article • Annals of Botany, August 2005, Oxford University Press (OUP)

    Professor Pirjo S. A. Mäkelä

  61. Agro-industrial uses of glycinebetaine

    Article • Sugar Tech, December 2004, Springer Science + Business Media

    Professor Pirjo S. A. Mäkelä

  62. Alterations in growth and canopy architecture among dwarf, semidwarf and tall oat lines grown under northern conditions

    Article • Agricultural and Food Science, September 2004, MTT Agrifood Research Finland

    Professor Pirjo S. A. Mäkelä

  63. Overexpression of Multiple Dehydrin Genes Enhances Tolerance to Freezing Stress in Arabidopsis

    Article • Plant Molecular Biology, March 2004, Springer Science + Business Media

    Professor Pirjo S. A. Mäkelä

  64. Growth of tomato and an ABA‐deficient mutant (sitiens) under saline conditions

    Article • Physiologia Plantarum, December 2002, Wiley

    Professor Pirjo S. A. Mäkelä

  65. Engineering Trehalose Biosynthesis Improves Stress Tolerance in Arabidopsis

    Article • January 2002, Springer Science + Business Media

    Professor Pirjo S. A. Mäkelä

  66. Ectopic expression of ABI3 gene enhances freezing tolerance in response to abscisic acid and low temperature in Arabidopsis thaliana

    Article • The Plant Journal, January 2001, Wiley

    Professor Pirjo S. A. Mäkelä

  67. Ectopic expression of ABI3 gene enhances freezing tolerance in response to abscisic acid and low temperature in Arabidopsis thaliana

    Article • The Plant Journal, January 2001, Wiley

    Professor Pirjo S. A. Mäkelä

  68. Photosynthetic response of drought‐ and salt‐stressed tomato and turnip rape plants to foliar‐applied glycinebetaine

    Article • Physiologia Plantarum, January 1999, Wiley

    Professor Pirjo S. A. Mäkelä

  69. Morpho-physiological traits characterizing environmental adaptation of Avena barbata

    Article • Euphytica, March 1998, Springer Science + Business Media

    Professor Pirjo S. A. Mäkelä

  70. Foliar application of glycinebetaine—a novel product from sugar beet—as an approach to increase tomato yield

    Article • Industrial Crops and Products, January 1998, Elsevier

    Professor Pirjo S. A. Mäkelä

  71. Growth response of pea and summer turnip rape to foliar application of glycinebetaine

    Article • Acta Agriculturae Scandinavica Section B - Soil & Plant Science, September 1997, Taylor & Francis

    Professor Pirjo S. A. Mäkelä

  72. Uptake and translocation of foliar-applied glycinebetaine in crop plants

    Article • Plant Science, December 1996, Elsevier

    Professor Pirjo S. A. Mäkelä

  73. Agronomic comparison of Minnesota-adapted dwarf oat with semi-dwarf, intermediate, and tall oat lines adapted to northern growing conditions

    Article • Canadian Journal of Plant Science, October 1996, Canadian Science Publishing

    Professor Pirjo S. A. Mäkelä

  74. Comparison of Physiological Methods to Assess Drought Tolerance in Oats

    Article • Acta Agriculturae Scandinavica Section B - Soil & Plant Science, March 1995, Taylor & Francis

    Professor Pirjo S. A. Mäkelä