Zobrazeno 1 - 10
of 81
pro vyhledávání: '"Neil C. Hansen"'
Autor:
Nerio E. Lupa-Condo, Frans C. Lope-Ccasa, Angel A. Salazar-Joyo, Raymundo O. Gutiérrez-Rosales, Eric N. Jellen, Neil C. Hansen, Alberto Anculle-Arenas, Omar Zeballos, Natty Wilma Llasaca-Calizaya, Mayela Elizabeth Mayta-Anco
Publikováno v:
Agronomy, Vol 14, Iss 9, p 1938 (2024)
Drought is a principal limiting factor in the production of agricultural crops; however, quinoa possesses certain adaptive and tolerance factors that make it a potentially valuable crop under drought-stress conditions. Within this context, the object
Externí odkaz:
https://doaj.org/article/0f041be05d374b0a964547c24da66c65
Autor:
Ian Turner, Ruth Kerry, Ryan R. Jensen, Elisa A. Flint, Jeffrey Svedin, Neil C. Hansen, Bryan Hopkins, Keegan Hammond
Publikováno v:
Geocarto International, Vol 0, Iss 0 (2023)
Variable rate irrigation (VRI) is used to save water whilst maintaining crop yields in semiarid regions. A key problem is to be able to inexpensively determine spatial patterns in soil moisture so that VRI zones can be defined. In Southern Idaho, USA
Externí odkaz:
https://doaj.org/article/aef164ecc7a9460a93273217566aa800
Autor:
Ruth Kerry, Ben Ingram, Keegan Hammond, Samantha R. Shumate, David Gunther, Ryan R. Jensen, Steve Schill, Neil C. Hansen, Bryan G. Hopkins
Publikováno v:
Agronomy, Vol 13, Iss 5, p 1267 (2023)
Irrigated turfgrass is a major crop in urban areas of the drought-stricken Western United States. A considerable proportion of irrigation water is wasted through the use of conventional sprinkler systems. While smart sprinkler systems have made progr
Externí odkaz:
https://doaj.org/article/710851e628bf44d2b22f5046db8d07bf
Autor:
Keegan Hammond, Ruth Kerry, Ryan R. Jensen, Ross Spackman, April Hulet, Bryan G. Hopkins, Matt A. Yost, Austin P. Hopkins, Neil C. Hansen
Publikováno v:
Agronomy, Vol 13, Iss 5, p 1289 (2023)
This study examines the use of leaf area index (LAI) to inform variable-rate irrigation (VRI) for irrigated alfalfa (Medicago sativa). LAI is useful for predicting zone-specific evapotranspiration (ETc). One approach toward estimating LAI is to utili
Externí odkaz:
https://doaj.org/article/d12801a7a69d4afc90e038b59afe7b79
Autor:
Elisa A. Flint, Bryan G. Hopkins, Jeffery D. Svedin, Ruth Kerry, Matthew J. Heaton, Ryan R. Jensen, Colin S. Campbell, Matt A. Yost, Neil C. Hansen
Publikováno v:
Agronomy, Vol 13, Iss 4, p 1125 (2023)
Understanding spatial and temporal dynamics of soil water within fields is critical for effective variable rate irrigation (VRI) management. The objectives of this study were to develop VRI zones, manage irrigation rates within VRI zones, and examine
Externí odkaz:
https://doaj.org/article/1dbbb35b21e64bf5a73b9bb8b060335e
Autor:
Shannon V. Nelson, Neil C. Hansen, Matthew D. Madsen, Val Jo Anderson, Dennis L. Eggett, Bryan G. Hopkins
Publikováno v:
Land, Vol 12, Iss 1, p 232 (2023)
Post-disturbance rangeland restoration efforts are often thwarted due to soil moisture deficits. Superabsorbent polymers (SAPs) absorb hundreds of times their weight in water, increasing soil moisture when the SAP is mixed with soil. The objective of
Externí odkaz:
https://doaj.org/article/219ffe8c4b0b4accb803ce9fb3a30480
Publikováno v:
Water, Vol 14, Iss 9, p 1407 (2022)
More frequent and more intense heat waves and greater drought stress will occur in the future climate environment. Short-term extreme heat and drought stress often occur simultaneously after winter wheat anthesis, which has become the major constrain
Externí odkaz:
https://doaj.org/article/4e7069d79a364d3ebff7bfd1e707b96b
Autor:
Hector Ortiz-Cano, Jose Antonio Hernandez-Herrera, Neil C. Hansen, Steven L. Petersen, Michael T. Searcy, Ricardo Mata-Gonzalez, Teodoro Cervantes-Mendívil, Antonio Villanueva-Morales, Pil Man Park, J. Ryan Stewart
Publikováno v:
Frontiers in Agronomy, Vol 2 (2020)
Cultivation of C3 and C4 crops in semi-arid regions will be severely constrained as global temperatures rise. Consequently, alternative crops need to be sought out that adapt well to heat and drought and are productive despite limited access to water
Externí odkaz:
https://doaj.org/article/9889466e5ec74a57a46cdf4466178625
Publikováno v:
Agronomy, Vol 11, Iss 7, p 1377 (2021)
Addressing within-field and within-season variability of crop water stress is critical for spatially variable irrigation. This study measures interactions between spatially variable soil properties and temporally variable crop water dynamics; and whe
Externí odkaz:
https://doaj.org/article/3d3bdb1b87d840c6a587cfc29090bfe4
Publikováno v:
Remote Sensing, Vol 4, Iss 11, Pp 3619-3637 (2012)
With an increasing demand of fresh water resources in arid/semi-arid parts of the world, researchers and practitioners are relying more than ever on remote sensing techniques for monitoring and evaluating crop water status and for estimating crop wat
Externí odkaz:
https://doaj.org/article/3a6aa486bcf64d8891ea9315259b9869