Cannabis yield and cannabinoid profile affected by plant nutrition and planting density

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60460709%3A41210%2F25%3A102701" target="_blank" >RIV/60460709:41210/25:102701 - isvavai.cz</a>

Result on the web

<a href="https://doi.org/10.1016/j.indcrop.2024.120293" target="_blank" >https://doi.org/10.1016/j.indcrop.2024.120293</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.indcrop.2024.120293" target="_blank" >10.1016/j.indcrop.2024.120293</a>

Result language

angličtina

Original language name

Cannabis yield and cannabinoid profile affected by plant nutrition and planting density

Original language description

Cannabis sativa L. is widely cultivated for its medicinal and industrial uses, with increasing demand driving research on factors that influence cannabinoid yield and profile. This study examined the combined effects of individualized nutrient solutions and planting density on cannabinoid content and inflorescence yield in a soilless cultivation system. Four treatments were applied: a control (A) and three enhanced treatments (B, C, D). Treatment B received an amino acid biostimulant to potentially enhance nitrogen utilization. Treatment C provided increased phosphorus (P), potassium (K), and iron (Fe) for enhanced energy transfer and stress resilience, and treatment D combined the nutrient compositions of B and C. Nutrient solutions were refreshed weekly and analyzed to monitor elemental composition. Treatments were applied at two planting densities (9 and 27.5 plants/m2). Cannabinoids were extracted and quantified using high-performance liquid chromatography with diode array detection. The combination of P, K, and Fe in treatment C produced the highest THC concentration (12.3?%) in the inflorescences, outperforming both the control (11.2?%) and treatment D (11.9?%). In contrast, treatment B, which used only the biostimulant, had the lowest THC concentration (9.5?%). Total THC yield per plant also varied significantly. In week 9, treatment C had the highest THC yield (2.81?g), while B had the lowest (1.60?g). By week 12, both treatments C and D reached nearly identical THC yields (5.94?g and 5.97?g), with treatment B still lagging at 3.69?g. This suggests that P, K, and Fe supplementation is critical for maximizing THC yield, while the biostimulant alone was less effective. Higher planting density increased THC concentration in inflorescences but reduced individual plant biomass, while lower density resulted in higher dry inflorescence and total THC yields per square meter. This suggests that cultivating fewer plants per square meter can optimize resource access and increase yield.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10511 - Environmental sciences (social aspects to be 5.7)

Project

—

Continuities

S - Specificky vyzkum na vysokych skolach

Publication year

2025

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

INDUSTRIAL CROPS AND PRODUCTS

ISSN

0926-6690

e-ISSN

1872-633X

Volume of the periodical

223

Issue of the periodical within the volume

neuvedeno

Country of publishing house

CZ - CZECH REPUBLIC

Number of pages

15

Pages from-to

1-15

UT code for WoS article

001383273100001

EID of the result in the Scopus database

2-s2.0-85211235725