Zobrazeno 1 - 10
of 83
pro vyhledávání: '"Gary E. Varvel"'
Autor:
Salvador Ramirez, Marty R. Schmer, Virginia L. Jin, Robert B. Mitchell, Catherine E. Stewart, Jay Parsons, Daren D. Redfearn, John J. Quinn, Gary E. Varvel, Kenneth P. Vogel, Ronald F. Follett
Publikováno v:
Frontiers in Energy Research, Vol 11 (2024)
Managing annual row crops on marginally productive croplands can be environmentally unsustainable and result in variable economic returns. Incorporating perennial bioenergy feedstocks into marginally productive cropland can engender ecosystem service
Externí odkaz:
https://doaj.org/article/479416f0cefb4b2f8065f68efb57d98a
Publikováno v:
Agrosystems, Geosciences & Environment, Vol 3, Iss 1, Pp n/a-n/a (2020)
Abstract Understanding the impacts of long‐term fertilizer management and rotation diversity on soil C and N is needed under a changing climate. The objective of this study was to evaluate the effects of N fertilizer level and crop rotation diversi
Externí odkaz:
https://doaj.org/article/5d03513c356b42c39ddf261a58336385
Autor:
Jane M. F. Johnson, Douglas L. Karlen, Garold L. Gresham, Keri B. Cantrell, David W. Archer, Brian J. Wienhold, Gary E. Varvel, David A. Laird, John Baker, Tyson E. Ochsner, Jeff M. Novak, Ardell D. Halvorson, Francisco Arriaga, David T. Lightle, Amber Hoover, Rachel Emerson, Nancy W. Barbour
Publikováno v:
Agriculture, Vol 4, Iss 4, Pp 274-287 (2014)
In the United States, corn (Zea mays L.) stover has been targeted for second generation fuel production and other bio-products. Our objective was to characterize sugar and structural composition as a function of vertical distribution of corn stover (
Externí odkaz:
https://doaj.org/article/3ade7b60b5dd4c7fb84733bee44f3d72
Autor:
Marty R Schmer, Kenneth P Vogel, Gary E Varvel, Ronald F Follett, Robert B Mitchell, Virginia L Jin
Publikováno v:
PLoS ONE, Vol 9, Iss 3, p e89501 (2014)
Low-carbon biofuel sources are being developed and evaluated in the United States and Europe to partially offset petroleum transport fuels. Current and potential biofuel production systems were evaluated from a long-term continuous no-tillage corn (Z
Externí odkaz:
https://doaj.org/article/025b9feeac5c4226b844d554a3b4ed56
Publikováno v:
Agrosystems, Geosciences & Environment, Vol 3, Iss 1, Pp n/a-n/a (2020)
Understanding the impacts of long‐term fertilizer management and rotation diversity on soil C and N is needed under a changing climate. The objective of this study was to evaluate the effects of N fertilizer level and crop rotation diversity on soi
Publikováno v:
Journal of Environmental Quality. 47:704-709
The western US Corn Belt is projected to experience major changes in growing conditions due to climate change over the next 50 to 100 yr. Projected changes include increases in growing season length, number of high temperature stress days and warm ni
Autor:
John M. Kimble, Kenneth P. Vogel, Catherine E. Stewart, Virginia L. Jin, Brian J. Wienhold, Gary E. Varvel, Marty R. Schmer, Robert B. Mitchell, Candiss O. Williams, Ronald F. Follett
Publikováno v:
Science Advances
Switchgrass mitigates greenhouse gas (GHG) emissions and no-till corn is GHG neutral for bioenergy production’s agronomic phase.
Bio-based energy is key to developing a globally sustainable low-carbon economy. Lignocellulosic feedstock product
Bio-based energy is key to developing a globally sustainable low-carbon economy. Lignocellulosic feedstock product
Publikováno v:
Agronomy Journal. 108:1592-1602
Long-term cropping system and fertilizer N studies are essential to understanding production potential and yield stability of corn (Zea mays L.), grain sorghum [Sorghum bicolor (L.) Moench], and soybean [Glycine max (L.) Merr.] in rain-fed environmen
Autor:
Catherine E. Stewart, Kenneth P. Vogel, Robert B. Mitchell, Ronald F. Follett, Gary E. Varvel, Elizabeth Pruessner
Publikováno v:
GCB Bioenergy. 8:1201-1211
Belowground root biomass is infrequently measured and simply represented in models that predict landscape-level changes to soil carbon stocks and greenhouse gas balances. Yet, crop-specific responses to N fertilizer and harvest treatments are known t
Publikováno v:
Agronomy Journal. 107:2241-2252