Industrial hemp response to nitrogen, phosphorus, and potassium fertilization
Open accessAbstract
Industrial hemp ( Cannabis sativa L.) production has increased in Canada in recent years, and interest for this multipurpose crop remains high. The lack of agronomic guidelines for Eastern Canada represents, however, a limiting factor for local hemp production. This study assessed biomass and seed yields and composition of two hemp cultivars (CRS‐1 and Anka), following various N, P, and K fertilization treatments (0, 50, 100, 150, and 200 kg N or K ha −1 ; 0, 25, 50, 75, and 100 kg P ha −1 ). The experiment was conducted in multiple environments in the province of Québec. Positive linear and quadratic responses of biomass yield, seed yield, and seed crude protein concentration to N fertilization were observed in all environments; the magnitude of the response depended, however, on the environment and cultivar. Across environments and cultivars, biomass and seed yields increased from 1674 to 4209 kg ha −1 and from 519 to 1340 kg ha −1 , respectively, with the application of 200 kg N ha −1 when compared with the unfertilized control. Nitrogen fertilization affected biomass cellulose and hemicellulose concentrations, but the overall response remained minimal. Phosphorus and potassium fertilizations had very limited effect on biomass and seed yields and composition in all environments. In conclusion, while industrial hemp responded to N fertilization up to 200 kg N ha −1 , response to P and K fertilization remained limited.
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Hemp comprises less than 1% of the total natural fiber used in the US due to the lack of processing infrastructure and agronomic guidelines as it competes against wood and related agro fibers.
“Even with this huge range of applications, hemp comprises <1% of the total natural fiber used in the US due to the lack of processing infrastructure and agronomic guidelines as it competes against wood and related agro fibers (Aubin et al. 2015; Wenger et al. 2018).”
From A critical review of industrial fiber hemp anatomy, agronomic practices, and valorization into sustainable bioproducts (2025) · cites this paper as Aubin et al. 2015
The Conclusions say that limited hemp production in Eastern Canada is partly due to a lack of agronomic guidance, and the introduction says recommendations could also serve parts of the northeastern United States. The paper does not establish that hemp accounts for less than 1% of US natural fiber use or attribute that share to processing infrastructure or competition with other fibers. Page numbers are unavailable in our copy. (LLM, conf=0.88)
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Adesina, I., Bhowmik, A., Sharma, H., & Shahbazi, A. (2020) · Agriculture · doi:10.3390/agriculture10040129 · Cited by 324 · see citing works
Hemp (Cannabis sativa L.) Flour-Based Wheat Bread as Fortified Bakery Product
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Basak, M., Broadway, M., Lewis, J., Starkey, H., Bloomquist, M., Peszlen, I., Davis, J., Lucia, L. A., & Pal, L. (2025) · BioResources · doi:10.15376/biores.20.2.basak · Cited by 22 · see citing works
“There are mixed conclusions about the effects of potassium and phosphorus (Aubin et al. 2015; Cherrett et al. 2005).”
InfluentialAhmadi, F., Kallinger, D., Starzinger, A., & Lackner, M. (2024) · Nitrogen · doi:10.3390/nitrogen5030042 · Cited by 14 · see citing works
- Authors
- Aubin, M., Seguin, P., Vanasse, A., Tremblay, G. F., Mustafa, A. F., & Charron, J.
- Affiliations
- Collège MacDonald (CA)
- Dep. of Plant Science Macdonald Campus of McGill Univ. Sainte‐Anne‐de‐Bellevue QC H9X 3V9 Canada
- Université Laval (CA)
- Agriculture and Agri-Food Canada (CA)
- Venue
- Crop, Forage & Turfgrass Management
- Publisher
- Wiley
- Published
- 2015-11-12
- Volume
- 1
- Issue
- 1
- Pages
- 1-10
- ISSN
- 2374-3832 (ISSN-L)
- OpenAlex
- W2298235574
- Cited by
- 116
- References
- 1
- Citations by year
- 2026: 11 · 2025: 12 · 2024: 14 · 2023: 15 · 2022: 22 · 2021: 14 · 2020: 16 · 2019: 6 · 2018: 1 · 2017: 4 · 2016: 1
- FWCI
- 2.74
- Type
- journal article
- Language
- en
- Open access
- hybrid
- doi.org
- Licence
- Locations
- Crop Forage & Turfgrass Management (publishedVersion, cc-by-nc-nd)
- Funders
- Ministère de l’Agriculture, des Pêcheries et de l’Alimentation du Québec
- Topics
- Life Sciences › Agricultural and Biological Sciences › Soil Science › Agricultural Science and Fertilization
- Life Sciences › Agricultural and Biological Sciences › Agronomy and Crop Science › Crop Yield and Soil Fertility
- Life Sciences › Agricultural and Biological Sciences › Soil Science › Plant Growth and Agriculture Techniques
- Keywords
- industrial hemp, Cannabis sativa, nitrogen fertilization, phosphorus fertilization, potassium fertilization, biomass yield, seed yield, cellulose and hemicellulose, cultivar response, environmental effects, Quebec
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