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861
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862
Evaluation of spatial variation and nutritional status of environmental quality in the surface seawater from fishing harbours of Hainan island
Published 2025-01-01“…To investigate the nutrient distribution characteristics and the eutrophication status of the main fishing ports in Hainan Province, this study analyzed the 2021 seawater quality indicators, including biochemical oxygen demand (BOD5), chemical oxygen demand (COD), chlorophyll a (Chl a), ammonia nitrogen (NH4-N), nitrite nitrogen (NO2-N), nitrate nitrogen (NO3-N), and soluble active phosphate (DIP). …”
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863
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864
Adsorption of Pb Using Mesoporous Activated Carbon and its Effects on Surface Modifications
Published 2012-07-01“…The modifications involved the following: (i) oxidation, to introduce oxygen-containing functional groups, and (ii) treatment with aqueous ammonia, to introduce basic nitrogen functional groups. The pristine materials, namely, those after surface modifications and those after adsorption, were characterized by the adsorption of nitrogen, Fourier transform infrared spectroscopy, scanning electron microscopy and thermal analyses. …”
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865
The effectiveness of Lemna perpusilla as phytoremediation agent in giant gourami culture media on 3 ppt
Published 2015-10-01“…ABSTRACT The wasted from feed and feces containt nitrogen and phosphorus can decreased fertility and feability water quality. …”
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866
Insight into influence of degradation metabolism of Firmicutes on the microstructure of anthracite coal
Published 2025-01-01“…This study investigated the effect of nitrogen source on the degradation of coal by Firmicutes. …”
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867
Effect of ISPAD Anaerobic Digestion on Ammonia Volatilization from Soil Applied Swine Manure
Published 2012-01-01“…However, this additional nitrogen can also be lost by volatilization during land application. …”
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868
Evaluation of nitrous oxide reduction in solid carbon source-driven counter-diffusional biofilm denitrification system
Published 2025-05-01“…The higher abundance of Bacteroidota and Comamonadaceae ensured the stable carbon source release and nitrogen conversion states.…”
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869
Arginase Inhibitor in the Pharmacological Correction of Endothelial Dysfunction
Published 2011-01-01“…Among vasodilatation agents, nitrogen oxide plays the basic role. …”
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870
Optimization of erythritol production through fermentation using molasses as carbon source
Published 2025-01-01“…Therefore, this research aims to determine the optimal concentrations of molasses as the carbon source, yeast extract as the nitrogen source, and the optimal carbon-to-nitrogen (C/N) ratio to achieve the highest erythritol productivity. …”
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871
From Waste to Resource: Use of <i>Lemna minor</i> L. as Unconventional Fertilizer for Lettuce (<i>Lactuca sativa</i> L.)
Published 2024-12-01“…The following fertilization treatments were applied: Control (no fertilization), <i>Lemna</i> biomass (60, 120, and 180 kg ha<sup>−1</sup> nitrogen), urea (60 kg ha<sup>−1</sup> nitrogen), and commercial organic fertilizer (60 kg ha<sup>−1</sup> nitrogen). …”
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872
Stabilization of soil organic matter in Luvisols under the influence of various tree species in temperate forests
Published 2025-01-01“…Similar relationships were found with the nitrogen content of the free light fraction (NfLF) and nitrogen of occluded light fraction (NoLF). …”
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873
Environmentally friendly membrane based on chitosan, citric acid, and calcium for slow-release fertilizer
Published 2025-01-01“…Among them, conventional fertilizers, particularly urea fertilizers, are popular owing to their low cost and high nitrogen content. However, their use often leads to uneven nitrogen absorption and environmental pollution. …”
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874
Application of Load Duration Curve Method in Pollution Control in the Middle and Lower Reaches of Hanjiang River
Published 2022-01-01“…The load duration curve method is used to study both water quality change and pollution load.This study aims to examine the effect of pollution control in the middle and lower reaches of the Hanjiang River and puts forward reasonable pollution control measures.For this purpose,the load duration curves of total phosphorus,COD<sub>Mn</sub>,and ammonia nitrogen are drawn according to the hydrological data and water quality data for 2006—2020,with water pollution prevention and control and the local water quality requirements as the design water quality objectives.The relationships among water flow,water quality,and pollution load are thereby established.The results show that under the corresponding specified surface water quality,the COD<sub>Mn</sub>,ammonia nitrogen,and total phosphorus indexes of the Huangzhuang section all meet the requirements,and the residual load is large,which means that no reduction measures are needed.Regarding the Xiantao section,reduction measures are also unnecessary for COD<sub>Mn</sub> and ammonia nitrogen,which,nevertheless,is not the case for the high and low flow areas of total phosphorus.The reduction amounts for the two areas are 6.05 t/d and 0.09 t/d,respectively.This study provides technical support for water quality compliance management under different hydrological conditions of the river.…”
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875
Water Quality Analysis and Evaluation of Five Rivers in Poyang Lake Based on Three Water Quality Index Methods
Published 2024-07-01“…Five evaluation factors, namely, dissolved oxygen, potassium permanganate, ammonia nitrogen, total nitrogen, and total phosphorus are selected. …”
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876
Winter Forage Legume Guide
Published 2017-12-01“…When properly inoculated, they supply nitrogen for their own growth and provide nitrogen for other plants growing with or following them. …”
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877
Winter Forage Legume Guide
Published 2017-12-01“…When properly inoculated, they supply nitrogen for their own growth and provide nitrogen for other plants growing with or following them. …”
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878
Florida Springs Land Use Information Tool
Published 2004-09-01“… The purpose of this publication is to provide information about how land use influences the amount of nitrogen that may be imported as fertilizers or soil amendments, the amount of nitrogen that may be exported in the harvested portion of a crop, the amount of water that may be consumed, and the relative pesticide loading. …”
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879
Florida Springs Land Use Information Tool
Published 2004-09-01“… The purpose of this publication is to provide information about how land use influences the amount of nitrogen that may be imported as fertilizers or soil amendments, the amount of nitrogen that may be exported in the harvested portion of a crop, the amount of water that may be consumed, and the relative pesticide loading. …”
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880
Eco-optimizing rice-wheat system of Eastern Indo-Gangetic plains of India through resource conservation technologies: insights from field experiments and modeling
Published 2025-01-01“…In eastern India, the rice-wheat cropping system (RWCS) faces challenges like poverty, fragmented landholdings, and resource overexploitation, with smallholder farmers prioritizing short-term gains through excessive water and nitrogen use. To address these issues, our study combined field experiments and the DNDC crop simulation model to evaluate the resilience, viability, and environmental sustainability of RWCS under conservation agriculture (CA) with varying irrigation methods and nitrogen rates at the International Rice Research Institute-South Asia Regional Center (ISARC), Varanasi, India. …”
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