Industrial Hemp as a Crop for a Sustainable Agriculture

Ely, Kristine; Podder, Swarup; Reiss, Matthew; Fike, John H.

doi:10.1007/978-981-16-8778-5_1

Cited by 7 publications

(6 citation statements)

References 113 publications

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“…Hemp growth is regulated in relationship to day length [14], and initiation of the reproductive phase and of inflorescence development soon after planting limited Grandi's opportunity for vertical vegetative growth. This effect is particularly notable due to the cultivation of a photoperiod-sensitive cultivar originating from northern latitudes grown in a southern location [2]. A similar pattern of response occurred again in 2022, but in this case likely reflects that crop growth was limited by low seasonal precipitation with irregular temporal distribution.…”

Section: Plant Heightmentioning

confidence: 72%

“…Integration into existing cropping systems will support greater farm system diversity and afford the opportunity to produce several types of harvested products (e.g., seed, fiber, and essential oil). These products have potential uses across numerous markets, including food, feed, insulation, absorbents, building materials, and medicinal and healthcare products [2].…”

Section: Introductionmentioning

confidence: 99%

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Hemp Seed Yield Responses to Nitrogen Fertility Rates

Podder,

Shafian,

Thomason

et al. 2024

Crops

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Industrial hemp (Cannabis sativa L.) holds promise as a crop for more sustainable supply chains given its potential as a source of high-strength fibers, adsorbents, and nutrient-dense feedstuffs. Developing nutrient management guidelines for hemp will be an important part of optimizing the crop’s sustainability attributes. This study measured hemp seed yield in response to N fertilization rate (0, 60, 120, 180, and 240 kg N ha−1). Treatments were tested with four hemp cultivars (‘Joey’ and ‘Grandi’ in 2020, 2021, and 2022 and ‘NWG 2463’ and ‘NWG 4113’ in 2023) in Virginia. Nitrogen input influenced (p ≤ 0.0177) seed yield in all four experimental years, although the pattern of response varied substantially. In 2020, following delayed seeding, hemp showed a weak quadratic (p = 0.0113) response to N inputs, with peak yield (1640 kg ha−1) occurring with 120 kg N ha−1. In 2021, hemp displayed a strong linear (p < 0.0001) response to N inputs, with the highest seed yield (2510 kg ha−1) at 240 kg N ha−1. In 2022, a season characterized by low precipitation and high weed pressure, a weak, linear (p = 0.0111) response to the N rate was observed. The greatest seed yield (380 kg ha−1) was again observed with 240 kg N ha−1. In 2023, weed pressure remained an issue, but the response to N was strong and linear (p < 0.0001), with the greatest seed yield (831 kg ha−1) again measured at 240 kg N ha−1. These findings indicate hemp can be quite responsive to N inputs but that the magnitude of response is sensitive to other factors such as available soil moisture, weed pressure, and growing period.

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Section: Plant Heightmentioning

confidence: 72%

Section: Introductionmentioning

confidence: 99%

Hemp Seed Yield Responses to Nitrogen Fertility Rates

Podder,

Shafian,

Thomason

et al. 2024

Crops

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“…Soils of fine granulometry presenting subsurface compaction layers can also severely hamper hemp root development, causing it to deviate from a vertical to an L‐shape (Adesina et al, 2020; Amaducci et al, 2015; Amaducci, 2020; Desanlis et al, 2013), limiting the access of hemp to deep reserves of water and nutrients and reducing the anchorage, making the plant more susceptible to lodging. Soils of fine granulometry can also lead to water stagnation after heavy rainfalls, which was reported to be badly supported by juvenile hemp (Amaducci, 2020; Ely et al, 2022; Struik et al, 2000). Sankari and Mela (1998) experienced a dramatic decrease of hemp establishment on a “ heavy clay soil ” subjected to a heavy rain event 4 days after sowing.…”

Section: Effects Of Land Marginality Factors On Hemp Productivity And...mentioning

confidence: 99%

Adapting the cultivation of industrial hemp (Cannabis sativa L.) to marginal lands: A review

Blandinières

Amaducci

2022

GCB Bioenergy

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Marginal lands are increasingly being considered for cultivating industrial and bioenergy crops to reduce the direct and indirect land-use changes. This review investigates the feasibility of hemp (Cannabis sativa L.) cultivation under the biophysical constraints that characterize marginal lands, with the objectives of (i) determining to which extent hemp cultivation can be affected by the consid-

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“…Industrial hemp (Cannabis sativa L.) cultivation is expanding worldwide, with the United States reporting an increase in acreage from 0 in 2013 to over 90,000 acres in 2018 [13]. The flowers of both the grain and fiber varieties produce profuse pollen (but no nectar) and attract bees and other pollinators [14][15][16][17][18]. According to [19], the acreage harvested for grain and fiber in the United States was estimated at over 24,000 acres, an indication that growers are turning towards scaling up the cultivation of fiber and grain varieties.…”

Section: Introductionmentioning

confidence: 99%

Intercropping Industrial Hemp and Cowpea Enhances the Yield of Squash—A Pollinator-Dependent Crop

Dingha,

Mukoko,

Egbon

et al. 2024

Agriculture

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Cultural crop-production practices are not only engineered to minimize pest incidence but also improve resource use efficiency and increase the diversity of habitat for beneficial insects that provide pollination services. With the increasing cultivation of industrial hemp and the benefits associated with the cultivation of multiple crops, its integration into a polyculture cropping system remains to be evaluated. We intercropped two pollinator-attractive crops, hemp and cowpea, with squash, a pollinator-dependent crop, to evaluate the impact of pollinator abundance and diversity on crop yield. Intercropping significantly increased the overall abundance of pollinators with 79.1% recorded from the intercropping systems compared to 21.9% in the monocropping systems. Sweat bees and bumble bees were the most abundant bees, and Squash+Cowpea was the most diverse cropping system. Intercropping significantly increased the yield of squash with higher squash yield (155%) in Hemp+Squash and (161%) in Squash+Cowpea than in squash monocrop. Also, intercropping resulted in higher hemp yield (64%) in Hemp+Cowpea and (165%) in Hemp+Squash compared to hemp monocrop. This study demonstrated that agricultural systems such as intercropping that are designed to attract pollinators are much more productive by not only improving crop yield but also growers’ returns on investments.

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Industrial Hemp as a Crop for a Sustainable Agriculture

Cited by 7 publications

References 113 publications

Hemp Seed Yield Responses to Nitrogen Fertility Rates

Hemp Seed Yield Responses to Nitrogen Fertility Rates

Adapting the cultivation of industrial hemp (Cannabis sativa L.) to marginal lands: A review

Intercropping Industrial Hemp and Cowpea Enhances the Yield of Squash—A Pollinator-Dependent Crop

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