nitrogen loss
Abatement costs of alternative tax systems to regulate agricultural nitrogen loss
... To overcome these problems, this paper uses the emission function approach (see e.g. Holtermann, 1976 for an early presentation and e.g. Weaver et al. (1996) for a more recent application). In this modelling approach, ...
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Effects of Nitrogen and Phosphorous Fertilisation on Nitrous Oxide Emission and Nitrogen Loss in an Irrigated Rice Field
... and nitrogen loss through the emission from irrigated rice fields treated with different nitrogen and phosphorous ...five nitrogen rates (0, 90, 180, 270, 360 kg N ha -1 ) and three ...
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Dissolved organic nitrogen : an overlooked pathway of nitrogen loss from agricultural systems?
... A distinction has to be made between soluble organic nitrogen (SON) and DON (Murphy et al., 2000). Soluble organic N is soil N that is extracted from the soil using water, KCl, electroul- trafi ltration (EUF), K 2 ...
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Elemental Sulphur Effects on Nitrogen Loss in Malaysian High pH Bintang Series Soil
... incubation unit consisted of 2 kg of soil in a plastic pot, 26 cm in diameter and 10cm in height. The plastic containers were sealed with perforated plastic sheets to minimise water loss whilst maintaining ...
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Metrics of biomass, live-weight gain and nitrogen loss of ryegrass sheep pasture in the 21st century
... N loss by leaching and by gaseous emission, we get a fuller picture of the loss, and comparison to product gained adds information on efficiency, separation into field management categories adds further ...
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An overlooked nitrogen loss linked to anaerobic ammonium oxidation in estuarine sediments in China
... Conclusions Our results suggested that anammox bacteria are ubiquitous in coastal estuaries in China.. and underline the importance of anammox resulting in N loss at a continental scale.[r] ...
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Controls of terrestrial ecosystem nitrogen loss on simulated productivity responses to elevated CO2
... N loss representations in TBMs is the difficulty in properly characterizing N loss fluxes at large spatio-temporal scales in nature, given the strong variability in space and time of the associated trace ...
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Erosion and nitrogen loss from forest soils in relation to soil structure
... Chapter 4 describes erosion experiments in the laboratory under simulated rainfall, for three forest soils with the objectives: • to examine variation in erosion and sediment characteris[r] ...
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Responses of nitrogen utilization and apparent nitrogen loss to different control measures in the wheat and maize rotation sytsem
... 2011). Nitrogen total input was composed of N fertilizer, soil residual N pre-planting, N deposition from dry and wet atmosphere, pre-crop straw return N and mineralized soil N at ...planting. Nitrogen ...
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Can birds be ammonotelic? Nitrogen balance and excretion in two frugivores
... low nitrogen intake and high water ...added nitrogen intake as an interacting ...low nitrogen intake recover some of the uric acid in the lower gastrointestinal ...of nitrogen excreted as ...
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Chemical Characterisation and Compost Recycling of a Pulp and Paper Mill Sludge
... poor sole growth substrate for microorganisms Alexander, 1977, the rate of carbon mineralisation would be expected to be less than the rate of nitrogen loss if pH is not controlled, sugg[r] ...
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Influence of Desiccation Time on Survival and Regeneration of Embryonic Axes of Groundnut (Arachis hypogaea L ) Immersed in Liquid Nitrogen
... Desiccation rates significantly influenced the extent of water loss of embryonic axes of groundnut, their survival and subsequent shoot formation after storage in liquid nitrogen Table 2[r] ...
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The Association of Gender, Age, and Coping with Internalizing Symptoms in Youth with Sickle Cell Disease
... Weight loss (%) in nitrogen versus temperature for pure PEEK (0%) and son- OND/PEEK composites with the indicated son-OND weight loadings... Temperature ramp was.[r] ...
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Water loss and nitrogen excretion in sharp nosed reed frogs (Hyperolius nasutus: anura, Hyperoliidae)
... Values for resistance of skin s cm" 1 to water flux calculated for waterproof frogs, normal frogs, cocooned frogs and reptiles Calculated after Nobel 1974 assuming that all water loss o[r] ...
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Pathways to Equity: An Auto-Ethnographic and Narrative Study of Teacher Educator and Preservice Teachers in a One-Credit Course and Community-Based Field Experience
... weight loss (Darga, Holden, Olson, & Lucas, 1994; Kumanyika, Obarzanek, Stevens, Hebert, & Whelton, 1991), and an existing hypothesis suggest a lower RMR may explain part of this ...
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Role of counterregulatory hormones in the catabolic response to stress
... Urinary nitrogen excretion promptly doubled and remained increased by approximately 4 g/d, reflecting increased excretion of urea and ...in nitrogen excretion was similar in three additional combined ...
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Synergistic Effect of Rosmarinic Acid and Sodium Lactate on Black Tiger Shrimp (Penaeus monodon) Quality during Frozen Storage
... cooking loss, firmness, total volatile basic nitrogen were observed to verify the efficacy of rosmarinic acid and sodium lactate in ice glazing water to frozen black tiger shrimp’s freshness and shelf-life ...
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Proposal for a Council Regulation (EEC) imposing a definitive anti dumping duty on certain chemical fertilizer originating in the United States of America COM (81) 27 final, 21 January 1981
... whe,reas for Columbia Nitrogen Corporation however, whose domestic sales of the product in question were found to have been made at a Loss during the abovementioned investigation period [r] ...
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C4MIP – The Coupled Climate–Carbon Cycle Model Intercomparison Project: experimental protocol for CMIP6
... of nitrogen (Wieder et ...of nitrogen on carbon cycle dynamics compared to CMIP5 and in particular provide a better constrained estimate of the carbon storage capacity of land ecosys- ...
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A Cheap Polypyrrole-Derived Fe-N-C Electrocatalyst with Ultrahigh Oxygen Reduction Activity in Alkaline Electrolyte
... transition-metal-coordinating nitrogen-doped carbon catalysts (M-N/C) have been generally considered to be the most promising substitutes for PMG ...metal, nitrogen and carbon precursors and optimization of ...
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