Fate and efficacy of polyacrylamide applied in furrow irrigation: full-advance and continuous treatments.

abstract：:Placement strategies for P fertilizer can affect P availability to crops and influence the amounts and forms of P removed from soil in runoff, contributing to eutrophication. On the Canadian prairies, most runoff occurs during snowmelt. Two adjacent farm fields in Saskatchewan, Canada, were used to assess the effects ...

journal_title：Journal of environmental quality

authors： Wiens JT,Cade-Menun BJ,Weiseth B,Schoenau JJ

更新日期：2019-05-01 00:00:00

abstract：:This paper reviews trace metal dynamics in floodplain soils using the Elbe floodplains in Germany as an example of extraordinary importance because of the pollution level of its sediments and soils. Trace metal dynamics are determined by processes of retention and release, which are influenced by a number of soil prop...

journal_title：Journal of environmental quality

authors： Schulz-Zunkel C,Krueger F

更新日期：2009-05-20 00:00:00

abstract：:Passage of agricultural runoff through vegetated drainage ditches has been shown to reduce the amount of pesticides, such as atrazine, exiting out of agricultural watersheds. Previous studies have found that microbial communities in soil from fields treated with atrazine display enhanced rates of atrazine degradation....

journal_title：Journal of environmental quality

authors： Tyler HL,Khalid S,Jackson CR,Moore MT

更新日期：2013-05-01 00:00:00

abstract：:Escherichia coli is a ubiquitous component of the intestinal microflora of warm-blooded animals, and is an indicator of fecal contamination of surface waters. Ribotype profiling of E. coli is one of several genotypic methods that has been developed to determine the host origin of fecal bacteria. Like most genotypic me...

journal_title：Journal of environmental quality

authors： Jenkins MB,Hartel PG,Olexa TJ,Stuedemann JA

更新日期：2003-01-01 00:00:00

abstract：:Cotton (Gossypium hirsutum L.) defoliant runoff was recently identified as an ecological risk. However, assessments are not supported by field studies. Runoff potential of three defoliant active ingredients, dimethipin (2,3-dihydro-5,6-dimethyl-1,4-dithiin 1,1,4,4-tetraoxide), thidiazuron (N-phenyl-N-1,2,3-thidiazol-5...

journal_title：Journal of environmental quality

authors： Potter TL,Truman CC,Bosch DD,Bednarz CW

更新日期：2003-11-01 00:00:00

abstract：:Pollen released by urban flora-a major contributor to airborne allergen content during the pollen season-has a considerable adverse impact on human health. Using aerobiological techniques to sample and characterize airborne biological particulate matter (BPM), we can identify the main species contributing to the polle...

journal_title：Journal of environmental quality

authors： Cariñanos P,Adinolfi C,Díaz de la Guardia C,De Linares C,Casares-Porcel M

更新日期：2016-01-01 00:00:00

abstract：:A commonly used method of measuring enteric methane (CH4) emissions from ruminants is the SF6 tracer technique that measures respired and eructated CH4. However, within the animal, a small proportion of CH4 is produced post-ruminally and some of this may escape through the rectum. The comparison of emissions using a c...

journal_title：Journal of environmental quality

authors： McGinn SM,Beauchemin KA,Iwaasa AD,McAllister TA

更新日期：2006-08-09 00:00:00

abstract：:The widespread use of chromium (Cr) has a deleterious impact on the environment. A number of pathways, both biotic and abiotic in character, determine the fate and speciation of Cr in soils. Chromium exists in two predominant species in the environment: trivalent [(Cr(III)] and hexavalent [Cr(VI)]. Of these two forms,...

journal_title：Journal of environmental quality

authors： Choppala GK,Bolan NS,Megharaj M,Chen Z,Naidu R

更新日期：2012-07-01 00:00:00

abstract：:The interaction of sulfonamide antimicrobial agents with smectite clay minerals and humic acid (HA)-clay complexes was investigated in batch experiments to assess the influence of adsorbed humic acid on sulfonamide sorption. Soil HA-clay complexes were produced at HA:clay ratios of 1:5, 1:50, and 1:100 (w/w). Vibratio...

journal_title：Journal of environmental quality

authors： Gao J,Pedersen JA

更新日期：2009-12-30 00:00:00

abstract：:Urban sewage sludge (USS) is increasingly applied to agricultural soils, but mixed results have been reported because of variations in reuse conditions. Most field trials have been conducted in cropping systems, which conceal intrinsic soil responses to sludge amendments due to the rhizosphere effect and farming pract...

journal_title：Journal of environmental quality

authors： Hechmi S,Hamdi H,Mokni-Tlili S,Ghorbel M,Khelil MN,Zoghlami IR,Benzarti S,Jellali S,Hassen A,Jedidi N

更新日期：2020-07-01 00:00:00

abstract：:Water resources protection from nitrate nitrogen (NO3-N) contamination is an important public concern and a major national environmental issue. The abilities of the SOIL-SOILN model to simulate water drainage and nitrate N fluxes from orchardgrass (Dactylis glomerata L.) were evaluated using data from a 3-yr field exp...

journal_title：Journal of environmental quality

authors： Jabro JD,Stout WL,Fales SL,Fox RH

更新日期：2001-03-01 00:00:00

abstract：:Urea-nitrogen (N) is commonly applied to crop fields, yet it is not routinely monitored despite its association with reduced water quality and its ability to increase toxicity of certain phytoplankton species. The purpose of this work was to characterize temporal fluctuations in urea-N concentrations and associated en...

journal_title：Journal of environmental quality

authors： Klick SA,Pitula JS,Bryant RB,Collick AS,Hashem FM,Allen AL,May EB

更新日期：2020-10-27 00:00:00

abstract：:An outdoor, solar illuminated growth chamber with modulated UV-B enhancement, is described and its performance characterized. The chamber was clad with Teflon film that transmitted both UV-A and UV-B with little absorption and whose transmission did not change significantly over 1 yr. An array of UV-B emitting fluor...

journal_title：Journal of environmental quality

authors： Ryan KG,Ireland W

更新日期：1997-05-01 00:00:00

abstract：:Denitrifying bioreactors (DNBRs) harness the natural capacity of microorganisms to convert bioavailable nitrogen (N) into inert nitrogen gas (N) by providing a suitable anaerobic habitat and an organic carbon energy source. Woodchip systems are reported to remove 2 to 22 g N m d, but the potential to enhance denitrifi...

journal_title：Journal of environmental quality

authors： Bock EM,Coleman B,Easton ZM

更新日期：2016-05-01 00:00:00

abstract：:The occurrence of broad-host-range (BHR) plasmid amplicons belonging to incompatibility (Inc) groups IncA/C, IncN, IncP, and IncW in two wastewater treatment plant (WWTP) effluents and effluent-receiving streams in Northwest Arkansas, Mud Creek and Spring Creek, was determined. Community DNA captured on filter membran...

journal_title：Journal of environmental quality

authors： Akiyama T,Asfahl KL,Savin MC

更新日期：2010-11-01 00:00:00

abstract：:Riparian wetlands have been shown to be effective "sinks" for nitrate N (NO3-), minimizing the downstream export of N to streams and coastal water bodies. However, the vast majority of riparian denitrification research has been in agricultural and forested watersheds, with relatively little work on riparian wetland fu...

journal_title：Journal of environmental quality

authors： Harrison MD,Groffman PM,Mayer PM,Kaushal SS,Newcomer TA

更新日期：2011-03-01 00:00:00

abstract：:Knowledge of pesticide distribution and persistence in nursery recycling pond water and sediment is critical for preventing phytotoxicity of pesticides during water reuse and to assess their impacts to the environment. In this study, sorption and degradation of four commonly used pesticides (diazinon, chlorpyrifos, ch...

journal_title：Journal of environmental quality

authors： Lu J,Wu L,Newman J,Faber B,Merhaut DJ,Gan J

更新日期：2006-08-09 00:00:00

abstract：:Batch sequential extraction techniques for fractionating metals or metalloids in soils are time consuming and subject to several potential errors. The development of a continuous-flow sequential extraction method for soil As is described and assessed, having the benefits of simplicity, rapidity, less risk of contamina...

journal_title：Journal of environmental quality

authors： Shiowatana J,McLaren RG,Chanmekha N,Samphao A

更新日期：2001-11-01 00:00:00

abstract：:Alum [Al(SO4) ·14HO] addition to poultry litter has been shown to reduce ammonia (NH) concentrations in poultry houses; however, its effects on greenhouse gas (GHG; NO, CH, and CO) emissions is unknown. The objectives of this study were to determine the effects of alum additions on (i) in-house NH and GHG concentratio...

journal_title：Journal of environmental quality

authors： Eugene B,Moore PA,Li H,Miles D,Trabue S,Burns R,Buser M

更新日期：2015-09-01 00:00:00

abstract：:This study was undertaken to determine the fate of As, Mo, and V (trace elements, TEs) in the sediments of a constructed wetland in use for the remediation of potentially toxic trace element-contaminated agricultural drainwater. After three years of wetland operation, sediment cores were collected to determine changes...

journal_title：Journal of environmental quality

authors： Fox PM,Doner HE

更新日期：2003-11-01 00:00:00

abstract：:Agricultural nutrient management is an issue due to P loss from fields and water quality degradation. This is especially true in watersheds where a history of P application in excess of crop needs has resulted in elevated soil P (legacy P). As practices and policy are implemented in such watersheds to reduce P loss, i...

journal_title：Journal of environmental quality

authors： Vadas PA,Fiorellino NM,Coale FJ,Kratochvil R,Mulkey AS,McGrath JM

更新日期：2018-05-01 00:00:00

abstract：:Sulfur received extensive study as an input to terrestrial ecosystems from acidic deposition during the 1980s. With declining S deposition inputs across the eastern United States, there have been many studies evaluating ecosystem response, with the exception of agricultural watersheds. We used long-term (22 and 18 yr)...

journal_title：Journal of environmental quality

authors： David MB,Gentry LE,Mitchell CA

更新日期：2016-07-01 00:00:00

abstract：:Phosphogypsum (PG), a by-product of the phosphate fertilizer industry, reduces N losses when added to composting livestock manure, but its impact on greenhouse gas emissions is unclear. The objective of this research was to assess the effects of PG addition on greenhouse gas emissions during cattle feedlot manure comp...

journal_title：Journal of environmental quality

authors： Hao X,Larney FJ,Chang C,Travis GR,Nichol CK,Bremer E

更新日期：2005-04-20 00:00:00

abstract：:Fish are commonly used for monitoring the quality of waters receiving pulp mill effluents (PMEs). Isotopic assays of fish tissues have the potential to provide empirical evidence to link an effluent source to exposure. We show in a 45-d factorial laboratory experiment that different exposure pathways lead to isotopic ...

journal_title：Journal of environmental quality

authors： Dubé MG,Benoy GA,Wassenaar LI

更新日期：2006-09-13 00:00:00

abstract：:Pig (Sus scrofa domesticus) slurry (PS) is commonly applied as fertilizer to agricultural fields. Knowledge of PS nitrogen content is essential for good management, but PS nitrogen content is highly variable, not only between farms but also within a farm. Laboratory analysis of animal slurries is often expensive and i...

journal_title：Journal of environmental quality

authors： Yagüe MR,Quílez D

更新日期：2012-05-01 00:00:00

abstract：:In northern Florida, year-round forage systems are used in dairy effluent sprayfields to reduce nitrate leaching. Our purpose was to quantify forage N removal and monitor nitrate N (NO3(-)-N) concentration below the rooting zone for two perennial, sod-based, triple-cropping systems over four 12-mo cycles (1996-2000). ...

journal_title：Journal of environmental quality

authors： Woodard KR,French EC,Sweat LA,Graetz DA,Sollenberger LE,Macoon B,Portier KM,Rymph SJ,Wade BL,Prine GM,Van Horn HH

更新日期：2003-05-01 00:00:00

abstract：:The influence of biochar on nitrogen (N) transformation processes in soil is not fully understood. This study assessed the influence of four biochars (wood and poultry manure biochars synthesized at 400 degrees C, nonactivated, and at 550 degrees C, activated, abbreviated as: W400, PM400, W550, PM550, respectively) on...

journal_title：Journal of environmental quality

authors： Singh BP,Hatton BJ,Balwant S,Cowie AL,Kathuria A

更新日期：2010-07-01 00:00:00

abstract：:The state of Iowa requires developing total maximum daily loads (TMDLs) for over 400 water bodies that are listed on the 303(d) list of the impaired waters. The Raccoon River watershed, which covers approximately 9400 km2 of prime agriculture land and represents a typical Midwestern corn-belt region in west-central Io...

journal_title：Journal of environmental quality

authors： Manoj K,Wolter CF,Schilling KE,Gassman PW

更新日期：2010-07-01 00:00:00

abstract：:Soils support ecosystem functions such as plant growth and water quality because of certain physical, chemical, and biological properties. These properties have been studied at different spatial scales, including point scales to satisfy basic research needs, and regional scales to satisfy monitoring needs. Recently, s...

journal_title：Journal of environmental quality

authors： Shirazi MA,Boersma L,Haggerty PK,Johnson CB

更新日期：2001-01-01 00:00:00

abstract：:Sand-sized particles (>63 microm) in whole storm water samples collected from urban runoff have the potential to produce data with substantial bias and/or poor precision both during sample splitting and laboratory analysis. New techniques were evaluated in an effort to overcome some of the limitations associated with ...

journal_title：Journal of environmental quality

authors： Selbig WR,Bannerman R,Bowman G

更新日期：2007-01-09 00:00:00