Nitrogen in stored poultry litter: uric Acid and xanthine.

abstract：:Greenhouse gas (GHG) emission measurements from livestock excreta in Africa are limited. We measured CH and NO emissions from excreta of six Boran () and six Friesian () steers near Nairobi, Kenya. The steers were fed one of three diets (T1 [chaffed wheat straw], T2 [T1 + Meissner - 0.2% live weight per day], and T3 [...

journal_title：Journal of environmental quality

authors： Pelster DE,Gisore B,Goopy J,Korir D,Koske JK,Rufino MC,Butterbach-Bahl K

更新日期：2016-09-01 00:00:00

abstract：:To examine whether tree rings can be used to detect or assess local historical 90Sr or 137Cs fallout, such as that resulting from the Hiroshima atomic bomb, radial distribution of 90Sr and 137Cs in trees was examined. We studied a gymnosperm [Japanese cedar, Cryptomeria japonica (L. f.) D. Don] and an angiosperm (Japa...

journal_title：Journal of environmental quality

authors： Kagawa A,Aoki T,Okada N,Katayama Y

更新日期：2002-11-01 00:00:00

abstract：:The effectiveness of various management practices to reduce phosphorus (P) loss from soil to water can potentially be improved by using by-product materials that have the capacity to sorb phosphorus. This study evaluated the P sorption and desorption potential, and the physicochemical characteristics of various phosph...

journal_title：Journal of environmental quality

authors： Leader JW,Dunne EJ,Reddy KR

更新日期：2008-01-04 00:00:00

abstract：:Isotopically exchangeable metals in soil, also termed labile metals, are reversibly bound to soil surface and are a better index of the environmental risk of the metals than are their total concentrations. In this study, labile fractions of potentially toxic elements were surveyed in metal mining-impacted soils of Mex...

journal_title：Journal of environmental quality

authors： Guzman-Rangel G,Martínez-Villegas N,Smolders E

更新日期：2020-03-01 00:00:00

abstract：:Condensed tannins can be found in various parts of many plants. Unlike lignin there has been little study of their fate as they enter the soil organic matter pool and their influence on nutrient cycling, especially through their protein-binding properties. We extracted and characterized tannin-rich fractions from humu...

journal_title：Journal of environmental quality

authors： Lorenz K,Preston CM

更新日期：2002-03-01 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：:Erosion and runoff from pastures may lead to degradation of surface water. A 2-yr grazing study was conducted to quantify the effects of grazing management on sediment, phosphorus (P), and pathogen loading of streams in cool-season grass pastures. Six adjoining 12.1-ha pastures bisected by a stream in central Iowa wer...

journal_title：Journal of environmental quality

authors： Schwarte KA,Russell JR,Kovar JL,Morrical DG,Ensley SM,Yoon KJ,Cornick NA,Cho YI

更新日期：2011-07-01 00:00:00

abstract：:A significant portion of the NO3 from agricultural fields that contaminates surface waters in the Midwest Corn Belt is transported to streams or rivers by subsurface drainage systems or "tiles." Previous research has shown that N fertilizer management alone is not sufficient for reducing NO3 concentrations in subsurfa...

journal_title：Journal of environmental quality

authors： Kaspar TC,Jaynes DB,Parkin TB,Moorman TB

更新日期：2007-08-31 00:00:00

abstract：:Denitrifying bioreactors are dependent on organic matter supply as a substrate for effective NO removal. In this study, the difference in removal efficiency and side effects when using different organic matter sources and dosing strategies was tested in two field experiments. The organic matter sources tested were woo...

journal_title：Journal of environmental quality

authors： Jansen S,Stuurman R,Chardon W,Ball S,Rozemeijer J,Gerritse J

更新日期：2019-03-01 00:00:00

abstract：:Terbuthylazine [N2-tert-butyl-6-chloro-N4-ethyl-1,3,5-triazine-2,4-diamine] degradation pathways in agricultural soils were evaluated by following the appearance and mobility of its main transformation products: dealkylated and hydroxylated derivatives. Three experimental degradation studies in open field were perform...

journal_title：Journal of environmental quality

authors： Guzzella L,Rullo S,Pozzoni F,Giuliano G

更新日期：2003-05-01 00:00:00

abstract：:Fertilizer leaching affects farm profitability and contributes to nonpoint-source pollution of receiving waters. This work aimed to establish nitrate nitrogen export from La Violada Gully in relation to nitrogen fertilization practices in its basin (La Violada Gully watershed, VGW, 19,637 ha) and especially in La Viol...

journal_title：Journal of environmental quality

authors： Isidoro D,Quílez D,Aragüés R

更新日期：2006-04-03 00:00:00

abstract：:Vegetation that develops spontaneously on metal-contaminated soils presents an opportunity to evaluate both metal bioavailability and the risks posed to biota. The behavior of Cd and Zn in the species of a spontaneously developed woodland, colonizing a canal embankment, has been investigated. Nitric-acid-extractable m...

journal_title：Journal of environmental quality

authors： Lepp NW,Madejón P

更新日期：2007-06-27 00:00:00

abstract：:There is interest in understanding effects of amending soil with manure in a cultivation setting and if composting can provide benefits. Raw or composted manure from cattle administered with and without sulfamethazine, chlortetracycline, and tylosin was amended to loamy sand and silty clay loam soils, where lettuce ( ...

journal_title：Journal of environmental quality

authors： Chen C,Guron GK,Pruden A,Ponder M,Du P,Xia K

更新日期：2018-11-01 00:00:00

abstract：:Roadside vegetation provides a multitude of ecosystem services, including pollutant remediation, runoff reduction, wildlife habitat, and aesthetic scenery. Establishment of permanent vegetation along paved roads after construction can be challenging, particularly within 1 m of the pavement. Adverse soil conditions cou...

journal_title：Journal of environmental quality

authors： Mills SD,Mamo M,Ruis SJ,Blanco-Canqui H,Schacht WH,Awada T,Li X,Sutton P

更新日期：2020-12-10 00:00:00

abstract：:Chemical speciation of soil cadmium (Cd) dictates its mobility and potential toxicity in the environment. Our objective was to compare temporal changes in speciation of Cd(II) reacted with samples from six Brazilian soils having varying Cd(II) sorption capacities. Cadmium L-edge X-ray absorption near edge structure (X...

journal_title：Journal of environmental quality

authors： Colzato M,Kamogawa MY,Carvalho HWP,Alleoni LRF,Hesterberg D

更新日期：2017-11-01 00:00:00

abstract：:Changes in surface land use may threaten groundwater quality and ecosystem integrity, particularly in shallow aquifers where links between groundwater and surface activities are most intimate. In this study we examine the response of groundwater ecosystem to agricultural land uses in the shallow alluvial aquifer of th...

journal_title：Journal of environmental quality

authors： Korbel KL,Hancock PJ,Serov P,Lim RP,Hose GC

更新日期：2013-03-01 00:00:00

abstract：:Chemical immobilization is a relatively inexpensive in situ remediation method that reduces soil contaminant solubility, but the ability of this remediation treatment to reduce heavy metal bioavailability and ecotoxicity to soil invertebrates has not been evaluated. Our objectives were to (i) assess the ability of che...

journal_title：Journal of environmental quality

authors： Conder JM,Lanno RP,Basta NT

更新日期：2001-07-01 00:00:00

abstract：:Closed chambers used to measure soil-atmosphere exchange of trace gases including nitrous oxide (N(2)O) and carbon dioxide (CO(2)) generate errors due to suppression of the gas concentration gradient at the soil-atmosphere interface. A method is described here for estimating the magnitude of flux underestimation arisi...

journal_title：Journal of environmental quality

authors： Venterea RT

更新日期：2009-12-30 00:00:00

abstract：:Use of organic by-products as soil amendments in agricultural production exemplifies a strategy for converting wastes to resources. The overall objective of this research was to evaluate the short- and intermediate-term effects of repeatedly amending sandy soil with paper mill residuals (PMR) and composted PMR in a ve...

journal_title：Journal of environmental quality

authors： Foley BJ,Cooperband LR

更新日期：2002-11-01 00:00:00

abstract：:Polyacrylamide (PAM) is applied to 400000 irrigated hectares annually in the USA to control irrigation-induced erosion, yet the fate of dissolved PAM applied in irrigation water is not well documented. We determined the fate of PAM added to furrow streams under two treatments: Initial-10, 10 mg L(-1) PAM product appli...

journal_title：Journal of environmental quality

authors： Lentz RD,Sojka RE,Mackey BE

更新日期：2002-03-01 00:00:00

abstract：:Laboratory microcosm experiments were used to assess the effects of environmental parameters on the persistence of the Bacteroides 16S rRNA genes derived from equine fecal samples in stream water to investigate the utility of Bacteroides spp. as fecal indicator organisms. Quantitative real-time polymerase chain reacti...

journal_title：Journal of environmental quality

authors： Bell A,Layton AC,McKay L,Williams D,Gentry R,Sayler GS

更新日期：2009-04-27 00:00:00

abstract：:Sources and molecular composition of dissolved organic matter (DOM) in coastal rivers have been tightly linked with its reactivity and fate, thus influencing element and nutrient cycling. The DOM in coastal rivers is usually sourced from both terrestrial and marine inputs, with further complication by anthropogenic ac...

journal_title：Journal of environmental quality

authors： He D,He C,Li P,Zhang X,Shi Q,Sun Y

更新日期：2019-05-01 00:00:00

abstract：:The contents and stable S isotope ratio (δS) values of total S, organic S, SO-S, and total reduced inorganic S (TRS) in typical limestone soil and yellow soil were analyzed in this study to examine the general distributions of S forms and their δS values in soils in karst areas of southwest China. Under a similar leve...

journal_title：Journal of environmental quality

authors： Zhang W,Liu CQ,Wang ZL,Zhang LL,Luo XQ

更新日期：2014-05-01 00:00:00

abstract：:Broiler litter contains 17β-estradiol, estrone, and testosterone, which can contaminate surface waters when surface applied to grasslands and no-till fields. The objective of this study was to evaluate the effects of litter type (full or cake cleanout), litter treatment (none or sodium bisulfate), and number of flocks...

journal_title：Journal of environmental quality

authors： Cabrera ML,Kissel DE,Hassan S,Rema JA,Cassity-Duffey K

更新日期：2018-01-01 00:00:00

abstract：:Coastal aquatic ecosystems are increasingly affected by diffuse source nutrient water pollution from agricultural activities in coastal catchments, even though these ecosystems are important from a social, environmental and economic perspective. To warrant sustainable economic development of coastal regions, we need t...

journal_title：Journal of environmental quality

authors： Roebeling PC,Rocha J,Nunes JP,Fidélis T,Alves H,Fonseca S

更新日期：2014-01-01 00:00:00

abstract：:Biochar has been heralded as an amendment to revitalize degraded soils, improve soil carbon sequestration, increase agronomic productivity, and enter into future carbon trading markets. However, scientific and economic technicalties may limit the ability of biochar to consistently deliver on these expectations. Past r...

journal_title：Journal of environmental quality

authors： Spokas KA,Cantrell KB,Novak JM,Archer DW,Ippolito JA,Collins HP,Boateng AA,Lima IM,Lamb MC,McAloon AJ,Lentz RD,Nichols KA

更新日期：2012-07-01 00:00:00

abstract：:To integrate biochar as a practical and successful remedial amendment at northern landfarms, components of its formulation and application must be optimized for site-specific environmental conditions. Different biochar amendments were applied to petroleum hydrocarbon (PHC)-contaminated soil at two northern field sites...

journal_title：Journal of environmental quality

authors： Karppinen EM,Siciliano SD,Stewart KJ

更新日期：2017-07-01 00:00:00

abstract：:Excessive or N-based application of poultry manure for crops may result in significant risk of P loss with surface runoff. This study assessed P loss immediately after poultry manure application to soybean [Glycine max (L.) Merr.] residue with and without tillage at eight Iowa fields. Manure from chickens (Gallus gall...

journal_title：Journal of environmental quality

authors： Kaiser DE,Mallarino AP,Haq MU,Allen BL

更新日期：2009-01-13 00:00:00

abstract：:Conservation tillage practices have become increasingly common in recent years to reduce soil erosion, improve water conservation, and increase soil organic matter. Research suggests that conservation tillage can stratify soil test phosphorus (P), but little is known about the effects on soil organic P. This study was...

journal_title：Journal of environmental quality

authors： Abdi D,Cade-Menun BJ,Ziadi N,Parent LÉ

更新日期：2014-07-01 00:00:00

abstract：:The use of marginal lands for biofuel production has been proposed as a promising solution for meeting biofuel demands while avoiding food-feed-fuel conflicts. However, uncertainty surrounds whether marginal lands can be reliably located, as well as their inherent biofuel potential and the possible environmental impac...

journal_title：Journal of environmental quality

authors： Bandaru V,Izaurralde RC,Manowitz D,Link R,Zhang X,Post WM

更新日期：2013-11-01 00:00:00