Life cycle assessment of oilseed crops produced in rotation with dryland cereals in the inland Pacific Northwest

Hemp Seed Production: Environmental Impacts of Cannabis sativa L. Agronomic Practices by Life Cycle Assessment (LCA) and Carbon Footprint Methodologies

“…In this study, the CF of 18 scenarios evaluated were below 0.675 kg CO 2 eq. These results are comparable with the CF of other crops, e.g., 0.186 kg CO 2 eq for soybeans [37], 0.53 kg CO 2 eq for rice [38], and 0.633 kg CO 2 eq for wheat [39][40][41][42]. Furthermore, the majority of the scenarios herein evaluated result lower than other crops, e.g., rapeseed (0.768 kg CO 2 eq), sunflower (0.889 kg CO 2 eq) [43], and coffee (2.355 kg CO 2 eq) [30].…”

“…This study evaluated the environmental sustainability of different agronomic practices for a hemp seed crop by means of life cycle assessment and carbon footprint tools. Several agricultural variables have been considered, such as hemp varieties (Epsilon68 (E68), Fedora17 (F17), Felina32 (F32), Ferimon (Fe), Futura75 (F75), Santhica27 (S27), Uso31 (U31)), plant densities (40,80, and 120 plants m −2 ), and levels of nitrogen (N) fertilization (50 and 100 kg ha −1 of N). From the LCA and CF results, it was possible to point out that Fe resulted the variety most environmentally sustainable, despite E68/F75/S27 varieties appeared with the highest impact.…”

“…Life cycle inventory (LCI): the second phase involves the modeling of the product system, data collection, as well as the description and verification of data [25]. In the agriculture practices evaluation, herein proposed, the following practices have been considered: i) seven industrial hemp varieties [Epsilon 68 (E68), Fedora 17(F17), Felina 32 (F32), Ferimon (Fe), Futura 75 (F75), Santhica 27 (S27), and Uso 31(U31)]; ii) three different plant densities (40,80, and 120 plants m −2 ); iii) two different level of nitrogen fertilization (50 and 100 kg ha −1 of N) [13].…”

“…Several agricultural variables have been considered as: cultivar, sowing density, and fertilizers, according to reference experimental scenarios [13]. In particular, seven hemp varieties (Epsilon 68, Fedora 17, Felina 32, Ferimon, Futura 75, Santhica 27, and Uso 31), three different plant densities (40,80, and 120 plants m −2 ) and two different levels of nitrogen fertilization (50 and 100 kg ha −1 of N) have been considered. Moreover, the environmental impact of 42 scenarios has been evaluated, coming from the combination of all the variables investigated (varieties, plant density, and nitrogen fertilization).…”

Life cycle assessment of wheat production and wheat‐based crop rotations

“…This study was focused on average U.S. wheat production data collected from USDA and different agricultural statistics (Meisterling et al., 2009). Ankathi, Long, Gollany, Das, and Shonnard (2019) conducted an LCA on an oilseed‐based rotation system alternated with wheat with different tillage practices. There are no studies conducted on the NGP's dryland specific agricultural practices for wheat production and wheat‐based crop rotation systems to our knowledge.…”