Response of hemp (Cannabis sativa L.) to integrated application of chemical and manure fertilizers

Laleh, S.; Al-Ahmadi, Majid Jami; Parsa, S H Zand

doi:10.14720/aas.2021.117.2.1819

Cited by 4 publications

(4 citation statements)

References 28 publications

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“…The combination of both mineral and organic fertilizers for integrated crop nutrition as performed in our study and also cited in the literature (Bernstein et al, 2019;Da Cunha Leme Filho et al, 2020;Laleh et al, 2021) suggests that the higher availability of mineral fertilizer can be important for plant initial growth, while organic fertilizers can be employed as a more sustainable nutrient complementation during flowering without major yield losses. It is relevant to further investigate the effects of nutrient deprivation in the different stages of flowering, as the major balance between biomass accumulation and the concentration of secondary metabolites can be modulated.…”

Section: Future Outlooksupporting

confidence: 69%

Cannabis Hunger Games: nutrient stress induction in flowering stage – impact of organic and mineral fertilizer levels on biomass, cannabidiol (CBD) yield and nutrient use efficiency

Massuela,

Munz,

Hartung

et al. 2023

Front. Plant Sci.

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Indoor medicinal cannabis cultivation systems enable year-round cultivation and better control of growing factors, however, such systems are energy and resource intensive. Nutrient deprivation during flowering can trigger nutrient translocation and modulate the production of cannabinoids, which might increase agronomic nutrient use efficiency, and thus, a more sustainable use of fertilizers. This experiment compares two fertilizer types (mineral and organic) applied in three dilutions (80, 160 and 240 mg N L−1) to evaluate the effect of nutrient deprivation during flowering on biomass, Cannabidiol (CBD) yield and nutrient use efficiency of N, P and K. This is the first study showing the potential to reduce fertilizer input while maintaining CBD yield of medicinal cannabis. Under nutrient stress, inflorescence yield was significantly lower at the final harvest, however, this was compensated by a higher CBD concentration, resulting in 95% of CBD yield using one-third less fertilizer. The higher nutrient use efficiency of N, P, and K in nutrient-deprived plants was achieved by a larger mobilization and translocation of nutrients increasing the utilization efficiency of acquired nutrients. The agronomic nutrient use efficiency of CBD yield – for N and K – increased 34% for the organic fertilizers and 72% for the mineral fertilizers comparing the dilution with one-third less nutrients (160) with the highest nutrient concentration (240). Differences in CBD yield between fertilizer types occurred only at the final harvest indicating limitations in nutrient uptake due to nutrient forms in the organic fertilizer. Our results showed a lower acquisition and utilization efficiency for the organic fertilizer, proposing the necessity to improve either the timing of bio-availability of organic fertilizers or the use of soil amendments.

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Section: Future Outlooksupporting

confidence: 69%

Cannabis Hunger Games: nutrient stress induction in flowering stage – impact of organic and mineral fertilizer levels on biomass, cannabidiol (CBD) yield and nutrient use efficiency

Massuela,

Munz,

Hartung

et al. 2023

Front. Plant Sci.

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“…In other studies conducted in Italy and Greece, Martinelli et al [23] and Arampatzis et al [25] observed that oil content in fruits of several milk thistle genotypes had higher values that ranged from 26.7 to 31.7% and from 24.7 to 31.1%, respectively. Compared with other species, the oil content of milk thistle is similar to hemp (Cannabis sativa L.) in which is ranging from 25.5 to 28.2% [29], but less than that in sesame (Sesamum indicum L.) and sunflower (Helianthus annuus L.) seeds that oil content is ranging from 34.2 to 36.5% and from 37.9 to 51%, respectively [30]. In 2021, the oil content in both varieties was higher compared with that in 2020, probably due to the wetter weather conditions that prevailed during April and May in 2020.…”

Section: Milk Thistle Varietiesmentioning

confidence: 96%

“…Moreover, the calcium ammonium nitrate increased the oil yield of both varieties, while sheep manure affected this parameter only in the variety Palaionterveno. Similarly, in milk thistle [16], canola (Brassica napus L.) [39], and hemp [29] crops, the application of manure increased oil yield compared to control.…”

Section: Fertilization Regimesmentioning

confidence: 99%

Effects of Two Varieties and Fertilization Regimes on Growth, Fruit, and Silymarin Yield of Milk Thistle Crop

et al. 2022

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Milk thistle is an alternative crop to winter cereals for southern Europe as this species is drought tolerant and its fruits contain silymarin. The aim of this study was to assess the impact of two varieties and fertilization regimes (sheep manure and inorganic fertilizer) on crop productivity. A two-factor experiment was conducted in a randomized split-plot design with three replicates. The varieties were Palaionterveno and Spata, while the fertilization treatments were control, sheep manure, and calcium ammonium nitrate applied at 75 and 125 kg N ha−1. Variety and fertilization significantly affected plants development and productivity, as well as oil and silymarin yield. The use of manure and inorganic nitrogen fertilizer increased rosette diameter, oil and silymarin yield, above-ground biomass, and fruit yield. The influence of inorganic fertilization, regardless of the application dose, was more apparent than organic fertilization. Moreover, variety significantly affected plants growth and silymarin content, as well as silymarin composition. The variety Spata had the greatest silymarin content, reaching 4.40%, and a high silybin B concentration. In conclusion, the selection of a suitable variety is important for achieving high fruit and silymarin yields, while inorganic nitrogen fertilization can maximize the productivity of the milk thistle crop.

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“…30 tons ha -1 of manure and 100 kg ha -1 of nitrogen increased leaf yield index and decreased seed yield index. Thus, hemp responds well to the combined application of nitrogen fertilizers and animal manure, while its response to P application was limited (Laleh et al, 2021). When using urea for fertilization, it is advisable to combine its application with nitrogen inhibitors, which ensure a higher yield of straw and seeds, as well as significantly reduce the rate of use of nitrogen fertilizers (Kakabouki et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

Formation of the Quality Indicators of Hemp (<i>Cannabis Sativa</i> L.) Seeds Sown under Organic Growing Technology

Pylypchenko¹,

Marenych²,

Hanhur³

et al. 2023

J. Ecol. Eng.

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The oil content of hemp seeds is controlled by the genotype and in the conducted studies did not depend on the growing technology; however, this factor had a synergistic effect with others. The protein content of hemp seeds during the years of research did not depend on weather conditions. Like other quality indicators, it had a slight variation, which indicates the significant role of the genetic characteristics of the varieties. On average, over the years of research, the protein content of the variants grown according to conventional technology was 25.2%, and according to transitional technology, it was 0.03% higher, which was within the limits of statistical error. The organic technology ensured the protein content at the level of 25.3%, and the use of the BioStymix-Niva microbial biodegrader -biodestructor contributed to the further growth of the indicator to 25.4%. The oil content of hemp seeds is not limited by other important characteristics, such as the yield of the hemp stems or the fiber content. Only the Glyana variety showed inverse correlations with plant height, hemp stems and seed productivity, they were of medium strength (r = -0.60 --0.43). In the Zolotoniski 15 variety, only one inverse relationship was recorded, i.e. plant height (r = -0.57). No correlation was established between protein content and oil content in seeds. Correlations may change depending on other factors of cultivation, including weather conditions, elements of technology, etc., but the evaluation of varieties for cultivation according to these characteristics can significantly increase the efficiency of the production of cannabis products.

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Response of hemp (Cannabis sativa L.) to integrated application of chemical and manure fertilizers

Cited by 4 publications

References 28 publications

Cannabis Hunger Games: nutrient stress induction in flowering stage – impact of organic and mineral fertilizer levels on biomass, cannabidiol (CBD) yield and nutrient use efficiency

Cannabis Hunger Games: nutrient stress induction in flowering stage – impact of organic and mineral fertilizer levels on biomass, cannabidiol (CBD) yield and nutrient use efficiency

Effects of Two Varieties and Fertilization Regimes on Growth, Fruit, and Silymarin Yield of Milk Thistle Crop

Formation of the Quality Indicators of Hemp (<i>Cannabis Sativa</i> L.) Seeds Sown under Organic Growing Technology

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