Evaluation of hemp (Cannabis sativa L.) as an industrial crop: a review

Rehman, Muzammal; Fahad, Shah; Du, Guocheng; Cheng, Xiao; Yang, Yang; Tang, Kaixue; Liu, Lijun; Liu, Feihu; Deng, Gang

doi:10.1007/s11356-021-16264-5

Cited by 103 publications

(66 citation statements)

References 95 publications

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“…Industrial hemp ( Cannabis sativa L.) is an ancient and versatile crop valued for its uses in food, fiber, and medicinal industry ( Rehman et al, 2021a ). Environmental stress lead to slower growth of hemp ( Jiang et al, 2021 ).…”

Section: Introductionmentioning

confidence: 99%

Effects of Light Spectra on Morphology, Gaseous Exchange, and Antioxidant Capacity of Industrial Hemp

et al. 2022

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One of the most important growth factors in cannabis cultivation is light which plays a big role in its successful growth. However, understanding that how light controls the industrial hemp growth and development is poor and needs advanced research. Therefore, a pot study was conducted to investigate the effects of different colors of light, that is, white light (WL), blue light (BL), red light (RL), and 50% red with 50% blue mix light (RBL) on morphology, gaseous exchange and antioxidant capacity of industrial hemp. Compared with WL, BL significantly increase hemp growth in terms of shoot fresh biomass (15.1%), shoot dry biomass (27.0%), number of leaves per plant (13.7%), stem diameter (10.2%), root length (6.8%) and chlorophyll content (7.4%). In addition, BL promoted net photosynthesis, stomatal conductance, and transpiration, while reduces the lipid peroxidation and superoxide dismutase and peroxidase activities. However, RL and RBL significantly reduced the plant biomass, gas exchange parameters with enhanced antioxidant enzymes activities. Thus, blue light is useful for large-scale sustainable production of industrial hemp.

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Section: Introductionmentioning

confidence: 99%

Effects of Light Spectra on Morphology, Gaseous Exchange, and Antioxidant Capacity of Industrial Hemp

et al. 2022

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“…Compared to sunflowers and rapeseed, hemp production has several other significant environmental benefits [70]. One of these is high sequestration.…”

Section: Discussion and Perspectivementioning

confidence: 99%

“…Another benefit of hemp that was not taken into account in the study is soil erosion. Whereas sunflowers belong to the category of plants with high erosion risk, and rapeseed belongs to the category of plants with mean erosion risk [73], hemp can enrich and stabilize unproductive lands by reducing weed pressure and soil erosion [70].…”

Section: Discussion and Perspectivementioning

confidence: 99%

Agricultural LCA for Food Oil of Winter Rapeseed, Sunflower, and Hemp, Based on Czech Standard Cultivation Practices

et al. 2021

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The demand for food vegetable oil is rising and this trend is reflected in the agricultural sector of the Czech Republic. The traditional oil crops of the Czech Republic are winter rapeseed and sunflower. These oil crops have high demands on energy inputs, for example, in the form of land preparation and chemical protection. At the same time, they are characterized by high food oil production and oiliness. Moreover, marginal oils crops, such as hemp, are also gaining prominence. This work aimed to evaluate the environmental impacts associated with the cultivation of winter rapeseed and sunflowers based on standard cultivation practices typical of the conditions of the Czech Republic. For comparison, an intensive cultivation strategy for hemp was modelled, also corresponding to the conditions of the Czech Republic. This study assessed the environmental impact of traditional oil crops from the agricultural Life Cycle Assessment (LCA) perspective. The system boundaries included all the processes from the cradle to the farm gate. Mass-based (volume of food oil) and area-based (land demand for generating the same volume of food oil) functional units were employed. The results cover nine impact categories related to the agricultural LCA. ReCiPe Midpoint (H) characterization and normalization models were used for the data expression. Hemp is a plant with generally low demands on the inputs of the growing cycle but generally has a low oil production, which affects the character of the results relating to the goal and scope definition of the study. Hemp food oil thus generated a higher environmental impact per unit of production and area compared to sunflower and rapeseed food oil.

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“…Hemp is a source of raw material for a wide variety of uses and final products from animal bedding, through composites, cosmetics to food, food supplements products, pharmaceuticals, and sowing seeds [2][3][4]. This variety of uses means that hemp must be harvested in different ways, at different stages of plant development which in turn poses specific challenges in the harvesting process.…”

Section: Introductionmentioning

confidence: 99%

Assessment of the Working Performance of an Innovative Prototype to Harvest Hemp Seed in Two Different Conditions of Terrain Slope

et al. 2022

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After many decades when its cultivation was prohibited, hemp is regaining its position as one of the most versatile cultivated crops. Multiplication of monoecious hemp varieties requires manual male plants rouging to keep a high share of monoecious plants in the population. It forces relatively small multiplication fields usually oscillating around 5 ha, where the use of big harvesting machines is not economically feasible. The B-800 mower prototype for hemp panicles proved to be a good alternative to harvest seeds of tall fibrous hemp. The test results of the mower analyzed in this study show that although seed loss on a moderate slope (0.37%) was significantly higher than on a flat slope (0.13%), it was still much lower than in the case of harvesting hemp seed with a combined harvester. Moreover, the field efficiency of 93% is very satisfactory as it is reported for much bigger machines. Finally, the harvesting costs proved to be much lower than most of the machines used for harvesting hemp seed.

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Evaluation of hemp (Cannabis sativa L.) as an industrial crop: a review

Cited by 103 publications

References 95 publications

Effects of Light Spectra on Morphology, Gaseous Exchange, and Antioxidant Capacity of Industrial Hemp

Effects of Light Spectra on Morphology, Gaseous Exchange, and Antioxidant Capacity of Industrial Hemp

Agricultural LCA for Food Oil of Winter Rapeseed, Sunflower, and Hemp, Based on Czech Standard Cultivation Practices

Assessment of the Working Performance of an Innovative Prototype to Harvest Hemp Seed in Two Different Conditions of Terrain Slope

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