地下滴灌减少杂草侵扰和灌溉用水,同时增加室外隧道大麻生产系统的花序和大麻素产量。

IF 4.3 Q1 PHARMACOLOGY & PHARMACY
Christian Büser, Jens Hartung, Simone Graeff-Hönninger
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引用次数: 0

摘要

大麻(大麻sativa L.)作为一种有价值的药用植物已有数千年的历史,由于最近的法律变化,大麻的种植和研究正在复苏。然而,大麻种植的资源密集性,特别是对水和能源的需求,构成了重大的环境挑战。在半受控环境下的户外种植可以减少这些能源需求,但需要灌溉。滴灌(DI)是最常用的灌溉方法,但经常因其易因蒸发而损失水分和地表径流的风险而受到批评。地下滴灌(SDI)通过最大限度地减少蒸发损失,同时保持或提高产量,从而提高水的利用效率,提供了一种可持续的解决方案。本研究比较了三种富cbd的化学型III型大麻(加拿大、意大利、联邦)在室外栽培中对杂草侵染、总水分利用、花序产量和水分利用效率的影响。与直接灌溉相比,SDI减少了18.6%的灌溉用水。显著地,SDI使杂草干生物量减少了93.2%。同时,花序产量提高5%,CBD浓度提高9%。总体而言,SDI植株的花序产量和CBD浓度的水分利用效率显著高于DI植株。我们的研究结果表明,采用SDI代替DI可以显著减少灌溉用水量和减少杂草侵害,同时增加花序和CBD产量,从而减少与大麻种植相关的环境挑战。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Subsurface drip irrigation reduces weed infestation and irrigation water use while increasing inflorescence and cannabinoid yield in an outdoor tunnel Cannabis sativa L. production system.

Subsurface drip irrigation reduces weed infestation and irrigation water use while increasing inflorescence and cannabinoid yield in an outdoor tunnel Cannabis sativa L. production system.

Subsurface drip irrigation reduces weed infestation and irrigation water use while increasing inflorescence and cannabinoid yield in an outdoor tunnel Cannabis sativa L. production system.

Subsurface drip irrigation reduces weed infestation and irrigation water use while increasing inflorescence and cannabinoid yield in an outdoor tunnel Cannabis sativa L. production system.

Cannabis (Cannabis sativa L.) has served as a valuable medicinal plant for thousands of years and is experiencing a resurgence in cultivation and research due to recent legal changes. However, the resource-intensive nature of cannabis cultivation, particularly water and energy demands, poses significant environmental challenges. Outdoor cultivation in a semi-controlled environment can reduce those energy demands but necessitates irrigation. Drip irrigation (DI) is the most commonly used irrigation method but is often criticized for its susceptibility to water losses through evaporation and the risk of surface runoff. Subsurface Drip Irrigation (SDI) provides a sustainable solution by minimizing evaporation losses while maintaining or increasing yields, thereby enhancing water use efficiency. In this study, we compared the effects of DI and SDI on weed infestation, total water usage, inflorescence yield, and water use efficiency of three CBD-rich cannabis chemotype III genotypes (Kanada, Terra Italia, FED) in an outdoor foil tunnel cultivation system. SDI resulted in a reduction of irrigation water usage by 18.6% compared to DI. Remarkably, weed dry biomass was reduced by 93.2% in SDI. Concomitantly, inflorescence yield increased by 5% and CBD concentration by 9%. Overall, the water use efficiency of inflorescence yield and CBD concentration was significantly higher in SDI than in DI. Our results indicated that implementing SDI instead of DI can significantly decrease irrigation water use and reduce weed infestation while increasing inflorescence and CBD yield, thus reducing the environmental challenges associated with cannabis cultivation.

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