Zobrazeno 1 - 10
of 42
pro vyhledávání: '"G. B. Runion"'
Publikováno v:
Journal of Environmental Quality. 39:596-608
Increasing atmospheric CO(2) concentration has led to concerns about potential effects on production agriculture. In the fall of 1997, a study was initiated to compare the response of two crop management systems (conventional tillage and no-tillage)
Publikováno v:
New Forests. 39:275-285
Research into the effects of rising atmospheric carbon dioxide (CO2) on plant diseases remains limited despite the economic importance of this subject. Loblolly pine (Pinus taeda) seedlings were exposed to ambient and twice ambient levels of atmosphe
Publikováno v:
Communications in Soil Science and Plant Analysis. 39:1080-1089
A critical objective of belowground research is to collect and process representative soil samples. Mechanical devices have been developed to quickly take soil cores in the field; however, techniques to rapidly process large‐diameter soil cores are
Autor:
Hugo H. Rogers, Stephen A. Prior, G. B. Runion, Randall L. Nelson, H. A. Torbert, Donald R. Ort
Publikováno v:
Journal of Environmental Quality. 35:1470-1477
Elevated atmospheric CO 2 can result in larger plants returning greater amounts of residue to the soil. However, the effects of elevated CO 2 on carbon (C) and nitrogen (N) cycling for different soybean varieties have not been examined. Aboveground r
Autor:
Robert J. Mitchell, Stephen A. Prior, H. A. Torbert, Micheal A. Davis, G. B. Runion, Roland R. Dute, Seth G. Pritchard, Hugo H. Rogers
Publikováno v:
Journal of Environmental Quality. 35:1478-1486
Plant species vary in response to atmospheric CO 2 concentration due to differences in physiology, morphology, phenology, and symbiotic relationships. These differences make it very difficult to predict how plant communities will respond to elevated
Publikováno v:
Agronomy Journal. 96:1202-1205
Reliable sampling of belowground components in the field is essential to agroecosystem research. Factors such as hardpans and dry soil conditions often increase sampling time and impede adequate sampling. The objective was to design and construct a s
Publikováno v:
Field Crops Research. 88:57-67
Increasing atmospheric CO2 concentration has led to concerns about global changes to the environment. One area of global change that has not been fully addressed is the effect of elevated atmospheric CO2 on agriculture production inputs. Elevated CO2
Autor:
Hugo H. Rogers, A. D. Peacock, Don C. Reicosky, G. B. Runion, D. W. Reeves, Stephen A. Prior, D. C. White
Publikováno v:
Communications in Soil Science and Plant Analysis. 35:2891-2903
Traffic-induced soil compaction and tillage systems can impact the productivity and sustainability of agricultural soils. The objective of this study was to assess the response of soil microbial populations to wheel-traffic in two tillage systems on
Publikováno v:
Transactions of the ASAE. 47:367-373
Assessing strategies to help mitigate the rise in atmospheric CO2 includes evaluation of management decisions concerning tillage practices that influence soil carbon loss. Information is lacking on seasonal CO2 efflux patterns, as affected by degree
Publikováno v:
Journal of Crop Production. 8:217-244
SUMMARY Since CO2 is a primary input for crop growth, there is interest in how increasing atmospheric CO2 will affect crop productivity and alter cropping system management. Effects of elevated CO2 on grain and residue production will be influenced b