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Surfactant effects on soil aggregate tensile strength Little is known regarding a soil aggregate's tensile strength response to surfactants that may be applied to alleviate soil water repellency. Two laboratory investigations were performed to determine surfactant effects on the tensile strength of 1) Ap horizons of nine wettable, agricultural soils co...
MANAGING EROSION AND INFILTRATION IN STEEPLY SLOPING IRRIGATION FURROWS WITH POLYACRYLAMIDE Most anionic-polyacrylamide (PAM) application comparisons in furrow irrigation have been done using furrows with <2% slopes. Results from such comparisons may not be valid for steeper furrows because of increased flow shear. We evaluated the efficacy of different PAM application methodologies on Po...
FATE OF ACRYLAMIDE MONOMER IN PERCOLATION WATER BENEATH PAM-TREATED IRRIGATION FURROWS Water-soluble polyacrylamide (PAM) used to reduce erosion in furrow irrigated fields and other agriculture applications contains, less than 0.05% Acrylamide monomer (AMD). The AMD is a potent neurotoxicant and suspected carcinogen, and is readily dissolved and transported in flowing water. Deep p...
Soil water measurements relevant to agronomic and environmental functions of chemically treated soil Modern agricultural, turf and landscape management routinely apply and depend upon chemical applications to optimize system function for specific outcomes. The effectiveness of these applied chemicals to achieve desired outcomes usually depends upon their interaction with and transport by water. T...
Greenhouse Gas and Ammonia Emissions from an Open-Freestall Dairy in Southern Idaho Concentrated dairy operations emit trace gases such as ammonia (NH3), methane (CH4), and nitrous oxide (N2O) to the atmosphere. The implementation of air quality regulations in livestock-producing states increases the need for accurate on-farm determination of emission rates. The objective of this ...
SEED TREATMENTS FOR IMPROVED STAND AND YIELD IN DRY BEANS IN TWIN FALLS COUNTY, ID, 2004 Dry bean seed treatments were evaluated for efficacy in a furrow irrigated trial in Kimberly, ID. Six seed treatments and an untreated check were evaluated using natural field infection and the dry bean cultivar UI 465. Experimental units were arranged in a randomized complete block design with fo...
CONTROL OF WHITE MOLD OF DRY BEANS WITH FOLIAR SPRAYS IN JEROME COUNTY, ID, 2004 Foliar sprays were evaluated for control of white mold of dry beans in Jerome County, ID. Eight foliar treatments and an untreated check were evaluated for control of white mold using the dry bean cultivar Etna. Experimental units were arranged in a randomized complete block design with four repli...
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