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Effect of Fertilization with Urea and Inhibitors on Growth, Yield and CBD Concentration of Hemp ( Cannabis sativa L.)

Author

Listed:
  • Ioanna Kakabouki

    (Laboratory of Agronomy, Department of Crop Science, Agricultural University of Athens, 11855 Athens, Greece)

  • Angeliki Kousta

    (Laboratory of Agronomy, Department of Crop Science, Agricultural University of Athens, 11855 Athens, Greece)

  • Antigolena Folina

    (Laboratory of Agronomy, Department of Crop Science, Agricultural University of Athens, 11855 Athens, Greece)

  • Stella Karydogianni

    (Laboratory of Agronomy, Department of Crop Science, Agricultural University of Athens, 11855 Athens, Greece)

  • Charikleia Zisi

    (Laboratory of Agronomy, Department of Crop Science, Agricultural University of Athens, 11855 Athens, Greece)

  • Varvara Kouneli

    (Laboratory of Agronomy, Department of Crop Science, Agricultural University of Athens, 11855 Athens, Greece)

  • Panayiota Papastylianou

    (Laboratory of Agronomy, Department of Crop Science, Agricultural University of Athens, 11855 Athens, Greece)

Abstract

Field experiments were conducted during 2019 in two different locations in Greece (Athens and Farsala) to evaluate the effect of urea and urea fertilization with inhibitors on the agronomic yield and quality characteristics of two cannabis varieties ( Cannabis sativa L.), “Uso31”and “Fedora 17”. The experimental design was split-plot with four different fertilization treatments—control, Urea (U), urea with Urease Inhibitor (UI), and urea with Nitrification Inhibitor (NI) and urease inhibitor (UI). The significance of differences between treatments was estimated by using Tukey’s test with a significance level of p = 0.05. The plant height was significantly affected by the different fertilizations and different varieties as well as by the two locations. The maximum plant height was 197 cm for “Fedora 17”in Farsala. The seed yield was higher forthe urea with inhibitors treatment in both varieties. The Cannabidiol (CBD) content was significantly affected by the fertilization—it was higher in urea with inhibitors in “Uso31”and “Fedora 17” treatments. The lowest CBD content value was 1.29% (control) and the highest was 1.69% (urea NI + UI). In conclusion, in both varieties, it seems that urea with inhibitors has a positive effect on their growth, as well as on the increase in cannabidiol (CBD) content.

Suggested Citation

  • Ioanna Kakabouki & Angeliki Kousta & Antigolena Folina & Stella Karydogianni & Charikleia Zisi & Varvara Kouneli & Panayiota Papastylianou, 2021. "Effect of Fertilization with Urea and Inhibitors on Growth, Yield and CBD Concentration of Hemp ( Cannabis sativa L.)," Sustainability, MDPI, vol. 13(4), pages 1-13, February.
    • Handle: RePEc:gam:jsusta:v:13:y:2021:i:4:p:2157-:d:500981
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    References listed on IDEAS

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    1. Anna Tedeschi & Maria Grazia Volpe & Franca Polimeno & Francesco Siano & Giuseppe Maglione & Paul Di Tommasi & Ermanno Vasca & Vincenzo Magliulo & Luca Vitale, 2020. "Soil Fertilization with Urea Has Little Effect on Seed Quality but Reduces Soil N 2 O Emissions from a Hemp Cultivation," Agriculture, MDPI, vol. 10(6), pages 1-14, June.
    2. Ifeoluwa Adesina & Arnab Bhowmik & Harmandeep Sharma & Abolghasem Shahbazi, 2020. "A Review on the Current State of Knowledge of Growing Conditions, Agronomic Soil Health Practices and Utilities of Hemp in the United States," Agriculture, MDPI, vol. 10(4), pages 1-15, April.
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    Cited by:

    1. Joanna Poniatowska & Katarzyna Panasiewicz & Milena Szalata & Livia Zarina & Sanita Zute & Karolina Wielgus, 2022. "Variability of cannabinoid yields of fibre hemp cultivars depending on the sowing density and nitrogen fertilisation," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 68(11), pages 525-532.

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