scholarly journals Land management and climate change determine second‐generation bioenergy potential of the US Northern Great Plains

GCB Bioenergy ◽  
2020 ◽  
Vol 12 (7) ◽  
pp. 491-509 ◽  
Author(s):  
Katelyn A. Dolan ◽  
Paul C. Stoy ◽  
Benjamin Poulter
2015 ◽  
Vol 127 (1) ◽  
pp. 43-51 ◽  
Author(s):  
Steven E. Travers ◽  
Bryan Marquardt ◽  
Nicole J. Zerr ◽  
James B. Finch ◽  
Mikayla J. Boche ◽  
...  

2018 ◽  
Vol 10 (5) ◽  
pp. 1687 ◽  
Author(s):  
Bruna Grimberg ◽  
Selena Ahmed ◽  
Colter Ellis ◽  
Zachariah Miller ◽  
Fabian Menalled

2011 ◽  
Vol 8 (8) ◽  
pp. 2037-2046 ◽  
Author(s):  
T. O. West ◽  
V. Bandaru ◽  
C. C. Brandt ◽  
A. E. Schuh ◽  
S. M. Ogle

Abstract. Carbon fixed by agricultural crops in the US creates regional CO2 sinks where it is harvested and regional CO2 sources where it is released back to the atmosphere. The quantity and location of these fluxes differ depending on the annual supply and demand of crop commodities. Data on the harvest of crop biomass, storage, import and export, and on the use of biomass for food, feed, fiber, and fuel were compiled to estimate an annual crop carbon budget for 2000 to 2008. With respect to US Farm Resource Regions, net sources of CO2 associated with the consumption of crop commodities occurred in the Eastern Uplands, Southern Seaboard, and Fruitful Rim regions. Net sinks associated with the production of crop commodities occurred in the Heartland, Northern Great Plains, and Mississippi Portal regions. The national crop carbon budget was balanced to within 0.3 to 6.1 % yr−1 during the period of this analysis.


Author(s):  
Brandt Berghuis ◽  
Andrew Friskop ◽  
Michelle Gilley ◽  
Jessica Halvorson ◽  
Bryan Hansen ◽  
...  

Sunflower rust, caused by Puccinia helianthi, is an economically and globally important disease of sunflower. Two types of sunflowers are produced in the US Northern Great Plains; the oilseed type and the confection type. Although approximately 80% of the acreage in this region is planted as the oilseed type sunflower, fungicide efficacy and timing studies have been conducted primarily on the more rust-susceptible confection type. A total of ten sunflower rust efficacy field experiments were conducted on oilseed type and confectionary type hybrid trials from 2016-2018. Eleven fungicides from three FRAC groups were evaluated for efficacy and protection of yield. Severity differences among fungicide treatments were identified in both confection and oilseed type sunflower trials. A combined analysis of all confection field trials (five) indicated that rust severity was lower in all fungicide treatments as compared to the non-treated control. Despite rust severity levels below the fungicide action threshold for confection sunflower, seven of the eleven fungicide treatments had yield higher than the non-treated control. In oilseed trials, rust severity was lower in all fungicide treatments as compared to the non-treated control, similar to the findings of the confection type. Rust severity was too low to detect yield differences in oilseed trials. Additional work is needed to elucidate yield-loss potential on oilseed type sunflower and refine the fungicide action threshold on confection type sunflower.


2012 ◽  
Vol 67 (5) ◽  
pp. 331-342 ◽  
Author(s):  
R. F. Follett ◽  
C. E. Stewart ◽  
E. G. Pruessner ◽  
J. M. Kimble

2009 ◽  
Vol 89 (2) ◽  
pp. 281-288 ◽  
Author(s):  
P. M. Carr ◽  
G. B. Martin ◽  
R. D. Horsley

Tillage is being reduced in semiarid regions. The impact of changing tillage practices on field pea (Pisum sativum L.) performance has not been considered in a major pea-producing area within the US northern Great Plains. A study was conducted from 2000 through 2005 to determine how field pea performance compared following spring wheat (Triticum aestivum L.) in clean-till (CT), reduced-till (RT), and no-till (NT) systems arranged in a randomized complete block at Dickinson in southwestern North Dakota. Seed yield increased over 1600 kg ha-1 in 2000 and almost 400 kg ha-1 in 2003 under NT compared with CT, and by 960 kg ha-1 in 2000 under NT compared with RT (P < 0.05). Differences in seed yield were not detected between tillage systems in other years. Plant establishment was improved as tillage was reduced, averaging 66 plants m-2 under NT and RT compared with 60 plants m-2 under CT management. The soil water conservation that can occur after adopting NT may explain the increased seed yields that occurred in some years. These results suggest that field pea seed yield can be increased by eliminating tillage in semiarid areas of the US northern Great Plains, particularly when dry conditions develop and persist. Key words: Zero tillage, field pea, cropping system, N-fixation, legume


2019 ◽  
Vol 53 (1) ◽  
pp. 157-193
Author(s):  
Taylor Spence

Abstract This article reexamines a highly public dispute between a powerful and well-connected Episcopal bishop and his missionary priest, men both central to the government’s campaign of war and assimilation against Indigenous Peoples in the Northern Great Plains of the nineteenth-century United States. The bishop claimed that the priest had engaged in sexual intercourse with a Dakota woman named “Scarlet House,” and used this allegation to remove the priest from his post. No historian ever challenged this claim and asked who Scarlet House was. Employing Dakota-resourced evidence, government and church records, linguistics, and onomastics, this study reveals that in actuality there was no such person as Scarlet House. Furthermore, at the time of the incident, the person in question was not a woman but a child. The church created a fictional personage to cover up what was taking place at the agency: sexual violence against children. After “naming” this violence, this article makes four key historical contributions about the history of US settler colonialism: It documents Dakota Peoples’ agency, by demonstrating how they adapted their social structures to the harrowing conditions of the US mission and agency system. It situates the experiences of two Dakota families within the larger context of settler-colonial conquest in North America, revealing the generational quality of settler-colonial violence. It shows how US governmental policies actually enabled sexual predation against children and women. And, it argues that “naming violence” means both rendering a historical account of the sexual violence experienced by children and families in the care of the US government and its agents, as well as acknowledging how this violence has rippled out through communities and across generations.


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