Zobrazeno 1 - 10
of 31
pro vyhledávání: '"William L. Kranz"'
Autor:
Thomas J. Trout, Derek M. Heeren, William L. Kranz, Steven R. Evett, Freddie R. Lamm, Paul D. Colaizzi, Xiaomao Lin, Susan A. O’Shaughnessy
Publikováno v:
Transactions of the ASABE. 63:703-729
Highlights Irrigation is key to the productivity of Great Plains agriculture but is threatened by water scarcity. The irrigated area grew to >9 million ha since 1870, mostly since 1950, but is likely to decline. Changes in climate, water availability
Publikováno v:
Applied Engineering in Agriculture. 35:83-102
Information and data on newer drought-tolerant maize hybrid response to water in different climates are extremely scarce. This research quantified the performance of non-drought-tolerant (NDT) (H1) and drought-tolerant (DT) (H2, H3, and H4) maize ( L
Publikováno v:
Transactions of the ASABE. 62:1395-1408
Corner watering attachments, specifically end guns and corner extensions, attached to center-pivot systems are a common means to irrigate the corners of square fields. The pumping plant is designed to supply water to all sprinklers when the center pi
Publikováno v:
Applied Engineering in Agriculture. 35:61-81
Grain yield, crop evapotranspiration (ETc), basal evapotranspiration (ETb), ETc-yield production functions (ETYPF), and crop water use efficiency (CWUE) response of three drought-tolerant (DT) and one non-drought-tolerant (NDT) maize ( L.) hybrids to
Publikováno v:
Sustainability, Vol 12, Iss 1, p 358 (2020)
Sustainability
Volume 12
Issue 1
Sustainability
Volume 12
Issue 1
Irrigation-yield production functions (IYPFs), irrigation water use efficiency (IWUE), and grain production per unit of applied irrigation of non-drought-tolerant (NDT) and drought-tolerant (DT) maize (Zea mays L.) hybrids were quantified in four loc
Autor:
Shannon L. Bartelt-Hunt, Mitiku Mamo, David P. Shelton, Daniel D. Snow, Sagor Biswas, Tian C. Zhang, William L. Kranz, Simon J. van Donk, Terry L. Mader, Charles A. Shapiro, David D. Tarkalson
Publikováno v:
Journal of Hazardous Materials. 324:436-447
Runoff generated from livestock manure amended row crop fields is one of the major pathways of hormone transport to the aquatic environment. The study determined the effects of manure handling, tillage methods, and rainfall timing on the occurrence a
Publikováno v:
Soil Science Society of America Journal. 79:1693-1703
Crop rotation influences yield through its effects on nutrient and pest cycles, soil C, water availability, and soil physical and chemical properties. A cropping system study was conducted from 2004 to 2008 near Brunswick, NE, on sandy loam (Haplusto
Publikováno v:
Applied Engineering in Agriculture. :33-42
The objective of this research was to demonstrate how tractor performance data from the Nebraska Tractor Test Laboratory (NTTL) and engine modeling techniques can be used to develop more wide-ranging performance maps for bare engines. Performance map
Autor:
David P. Shelton, Terry L. Mader, Shannon L. Bartelt-Hunt, Charles A. Shapiro, Daniel D. Snow, Sagor Biswas, Steve Ensley, S. J. van Donk, Tian C. Zhang, William L. Kranz, David D. Tarkalson
Publikováno v:
Transactions of the ASABE. :1327-1338
A variety of naturally occurring steroid hormones are regularly excreted by livestock, while additional steroid hormones have been used as growth promoters by the livestock industry. Depending on manure age and storage conditions, both groups of comp
Autor:
Simon J. van Donk, Sagor Biswas, David P. Shelton, Daniel D. Snow, David D. Tarkalson, William L. Kranz, Charles A. Shapiro, Terry L. Mader, Shannon L. Bartelt-Hunt, Mitiku Mamo, Tian C. Zhang
Publikováno v:
Transactions of the ASABE. :1379-1385
Beef feedlot manure distributed to row crop production areas is a potential surface water contaminant source of the steroid hormones commonly used in beef cattle production. This article reports on research conducted at the University of Nebraska Has