Key cultivation techniques for hemp in Europe and China

Amaducci, Stefano; Scordia, Danilo; Liu, F; Zhang, Q; Guo, Huiling; Testa, Giorgio; Cosentino, Salvatore Luciano

doi:10.1016/j.indcrop.2014.06.041

Cited by 276 publications

(264 citation statements)

References 103 publications

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“…<0.2% w/v) differences between the fertilization treatments for mean seed weight (Maļceva et al, 2011;Vera et al, 2004;Dan et al, 2015). According to Amaducci et al (2015), the flowering stage in hemp is deemed to be the most important event in hemp cultivation, as it affects production in terms of stems, inflorescences and seeds. This study showed that higher N fertilizer level in hemp has a positive impact mainly on stem yield rather than on inflorescence length and weight (on average +48.2%, +20,2% and +16% at 240 kg of N ha −1 than the control, respectively).…”

Section: Resultsmentioning

confidence: 99%

“…In Europe, it was one of the most important fiber crops from the 16 th to 18 th century, but from the middle through to the late 19 th century the cultivation of hemp in Europe declined. The major factors, which contributed to the reduction of cultivated area, were the competition from other feedstocks such as cotton and, more recently, synthetic fibers, high labor costs, and the prohibition of cultivation due to the use of cannabis as a narcotic (Struik et al, 2000;Amaducci et al, 2015). Nowadays, a renewed interest in hemp cultivation for multipurpose production is apparent and for the first time in 2015, it was cultivated in Europe on more than 20.000 ha as a dual-purpose crop, for its seeds and fibre (Tang et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

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Effect of Nitrogen Fertilization on Growth and Yield of Industrial Hemp (Cannabis sativa L.)

Papastylianou

Kakabouki

Travlos

2018

Not Bot Horti Agrobo

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Fibre hemp is grown for a multitude of end products derived from its cannabinoids, seed, fibre and wooden core. A key factor that influences the quantity and quality of the production of hemp is nitrogen fertilization. The aim of this study was to determine the response of five well-adapted industrial hemp cultivars to different nitrogen fertilization rates during the 2016 growing season. The experiment was laid out in a split-plot design with two replicates, five main plots (hemp cultivars: 'Bialobrzeskie', 'Tygra', 'Felina 32', 'Sanhtica 27', 'Futura 75') and sub-plots [fertilization treatments: control (N0), fertilizer 46-0-0 at 120 kg ha -1 (N1), 180 kg ha -1 (N2), 240 kg ha -1 (N3)]. For the computation of height, biomass yield, stem dry weight, length and weight of the inflorescences and mean seed weight, 10 plants were randomly selected in each plot. In general, increasing N fertilization rate positively impacts hemp biomass yield, stem dry weight, plant height, and inflorescence indices. Biomass yield, stem dry weight and inflorescence weight increased by 37.3%, 48.2% and 16%, respectively, with the application of 240 kg N ha -1 when compared with the unfertilized control. Plant height and inflorescence length increased from 1.66 to 1.76 m and from 66.2 to 82.9 cm, respectively, with the application of the higher N rate compared with the control, while there were no significant differences between the fertilization treatments for mean seed weight. The varieties 'Tygra' and 'Futura 75' showed the highest values for all the measurement characters. Our results indicate that hemp responded well to the addition of N fertilizer.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Effect of Nitrogen Fertilization on Growth and Yield of Industrial Hemp (Cannabis sativa L.)

Papastylianou

Kakabouki

Travlos

2018

Not Bot Horti Agrobo

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“…Industrial hemp and flax are very prosperous cellulose sources; they provide important cellulosic and non-cellulosic substances (fibre, sieve, seed, and oil) with relatively low agricultural investment. Their breeding and processing had already been well established in ancient times; nowadays, there is a growing interest in special cultivation methods according to the various end use destinations (Amaducci et al 2015). Fibres gained from the stalk (phloem) of these plants (bast fibres) contain, besides cellulose (64-78 %), various other materials such as hemicelluloses (5-22 %), pectin (0,8-2,5 %), lignin (2-5 %), water-soluble materials (0.7-1.5 %) and waxes (0.7-1.5 %) (Batra 2007).…”

Section: Introductionmentioning

confidence: 99%

Effect of mild alkali/ultrasound treatment on flax and hemp fibres: the different responses of the two substrates

et al. 2016

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Flax and hemp fibres were treated by various combinations of water/diluted alkaline solution and stirring/ultrasound, respectively. Changes in the microstructure (scanning electron microscopy) and porous structure (low-temperature nitrogen adsorption), removal of non-cellulosic materials (weight loss, FTIR), mean fibre diameter, and adhesion of the polypropylene matrix to the fibres (micro-bond test) were investigated. For both types of fibres, removal of (FTIR) was observed. The fibre diameter of hemp was decreased by several treatments, most of all by stirring in alkali and subsequent sonication in water, while the ultrasound applied in alkali solution did not change the fibre fineness. This can be attributed to the dual effect of ultra-sonication: the swelling effect of alkali combined with ultrasound energy probably served the sticking of inter-fibrillar material rather than their dissolution. Fibre diameter of flax did not change in any circumstances. The porosity of hemp in the mesopore range increased, while that of flax decreased by alkali treatment and subsequent sonication. The reason for this difference might be the dissimilar cell wall structures of the two bast fibres, the high arabinose content of the hemp, and/or the cottonisation of hemp. No treatments altered the fibre-matrix adhesion measured by pulling out the fibre from a micro-droplet of polypropylene.

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“…The diversity of potential fiber, structural, dietary, and medicinal uses has expanded interest in Cannabis sativa cultivation [1]. Though currently limited worldwide production is limited to 65 thousand hectares, cultivation of Cannabis sativa for fiber plus hempseed purposes combined grew by 38% between 2010 and 2012 [2].…”

Section: Introductionmentioning

confidence: 99%