Showing 1,001 - 1,020 results of 3,087 for search '"nitrogen"', query time: 0.28s Refine Results
  1. 1001

    Adsorption of CO on C,N–TiO Surfaces by Magdalena Janus

    Published 2012-12-01
    “…Modification of the TiO 2 surface by carbon and nitrogen results in the formation of photocatalysts that have high sorption capacity for CO 2 . …”
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  2. 1002

    The Impact of Breakwater Type on Hydrodynamic Environment in Semi-Closed Harbor by WU Qiong, LI Mugui, LUO Huan

    Published 2021-01-01
    “…Affected by breakwater construction,the water exchange of semi-closed harbor is often not smooth,and the self-purification ability is weak.To study the influence of different types of breakwater on the hydrodynamic environment in semi-closed harbor,the article took a typical semi-enclosed port in the Pearl River estuary,Xiangzhou fishing port as an example to analyze the differences of water exchange ability and the transport law of pollutants under the layout scheme of breakwater with opening width including 20、40、60、100 m.The results showed that,compared with the fully closed breakwater scheme,under the scheme of opening width of 20、40、60、100 m,the half exchange period of water in the harbor increased by 5.0 hours,11.0 hours,14.0 hours and 14.5 hours.The scheme with opening more than 40m was better than 20 m.However,there was no significant difference in the effect of the three schemes of opening 40、60、100 m.Considering the influence of regional pollution source input,under the scheme of breakwater opening,the concentration of inorganic nitrogen increased by 0.2~0.4 mg/L in the area near the opening.It further aggravated the pressure of inorganic nitrogen pollution in the northern part of the harbor,while the quality of water environment in the southern part of the harbor was improved due to the enhancement of water exchange ability.…”
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  3. 1003

    Overview of Air Pollution Assessment in Northern Europe (Lithuania) by Passive Diffusion Sampling by Steigvilė Byčenkienė, Dalia Jasinevičienė, Donatas Perkauskas

    Published 2018-01-01
    “…The samples were analyzed for sulfur dioxide (SO2) and nitrogen dioxide (NO2) concentration. The measurement results show that the mean concentrations of SO2 in all investigation sites during the study period did not exceed the annual limit value of 20.0 μg·m−3 and were below the lower assessment threshold value of 8.0 μg·m−3. …”
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  4. 1004

    Soil and vegetation property data from the Ultuna R3-RAM56 long-term soil amendment experiment, 1956–2023SND by Grace Pold, Emme MacDonald, Sabina Braun, Anke M. Herrmann

    Published 2025-04-01
    “…We report crop yields and nutrient content, as well as carbon, nitrogen, and micronutrient content for soils and amendments. …”
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  5. 1005

    Effects of Different Nutrition Conditions on the Growth and Cadmium Accumulation of Landoltia punctata by GONG Zhihang, WANG Xianglian, XIE Huicui, ZHANG Tongtong, TANG Yuling, ZHAGN Yanyun, LIU Zilong, HU Liang, WEN jie, CHEN Ziming

    Published 2021-01-01
    “…In order to understand the effects of different nutrition conditions on the growth and cadmium accumulation of Landoltia punctata by treating the Landoltia punctata with Hoagland solution and Steinberg solution in different concentrations,the experiment were conducted with Hoagland (H) and Steinberg (S) nutrient solution concentrations at 0 (CK),0.1 (1/10 H,1/10 S),0.2 (1/5 H,1/5 S),and 1 (1 H,1 S),respectively,and Cd content at 0 mg/L,0.5 mg/L,5 mg/L and 10 mg/L,respectively.The growth index and Cd accumulation of Landoltia punctata were measured under different nutrition conditions.The results show that Landoltia punctata grows better in Hoagland solution,especially at 1/10 H concentration.After Cd treatment,the Cd accumulation in Steinberg condition is higher than that in Hoagland condition.In a word,the high nitrogen and phosphorus content could inhibit not only the growth of Landoltia punctata,but also the Cd accumulation in Landoltia punctata.The effect of nitrogen on Cd accumulation in Landoltia punctata varies with its different states.This study can provide guidance for the restoration of eutrophic water polluted by heavy metals of aquatic plants.…”
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  6. 1006

    Oxidative Stability at Different Storage Conditions and Adulteration Detection of Prickly Pear Seeds Oil by Fatima Ettalibi, Abderraouf El Antari, Chemseddoha Gadhi, Hasnaâ Harrak

    Published 2020-01-01
    “…Regarding the impact of light and nitrogen bubbling, sunlight has affected seriously the oxidative stability of oils after 12 months of storage and the bubbling with nitrogen has improved their stability when they have been stored in clear glass bottles. …”
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  7. 1007

    Nano urea’s environmental edge and economic efficacy in boosting wheat grain yield across diverse Indian agro-climates by S. C. Tripathi, Nitesh Kumar, Karnam Venkatesh

    Published 2025-01-01
    “…Abstract The gradual increase in the consumption of mineral nitrogen is leading to heightened levels of harmful air pollutants, particularly N2O emissions from the agriculture sector. …”
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  8. 1008

    Mechanisms of N<sub>2</sub>O Emission in Drip-Irrigated Saline Soils: Unraveling the Role of Soil Moisture Variation in Nitrification and Denitrification by Fang Zhang, Zhi Qu, Qian Zhao, Zixuan Xi, Zhen Liu

    Published 2024-12-01
    “…Therefore, during drip irrigation, the position and flow rate of the dripper should be controlled to reduce soil water saturation areas, maintain soil aeration, control soil moisture content below field holding capacity, promote the nitrification process, reduce N<sub>2</sub>O emissions, and improve soil nitrogen use efficiency. Our study elucidates the characteristics of nitrogen transformation and N<sub>2</sub>O emissions across various soil moisture contents within the soil water structure under drip irrigation conditions, providing a scientific basis for the formulation of precise irrigation management practices and strategies for efficient soil nitrogen utilization.…”
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  9. 1009

    A diverse rotation of corn-soybean-winter wheat/double crop soybean with cereal rye after corn reduces tile nitrate loss by Lowell E. Gentry, Corey A. Mitchell, John M. Green, Carlos Guacho, Eric Miller, Dan Schaefer, Annette K. Vasquez, Zhongjie Yu

    Published 2025-02-01
    “…Increased crop rotational diversity may conserve nitrogen, support greater system resiliency, and reduce tile nitrate loss. …”
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  10. 1010

    Changes of Ammonia, Nitrite and Nitrate at Recirculation System of Red Tilapia (Oreochromis sp.) Rearing by D. Djokosetiyanto, A. Sunarma, . Widanarni

    Published 2007-01-01
    “…Conversion efficacy of ammonia nitrogen (NH3-N)  and nitrite nitrogen (NO2-N) of   biofilter compiled with aeration system was 46.20% and 30.68%, while in an unaerated system was 39.31% and 8.53%, respectively.  …”
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  11. 1011

    Study of soil cover of Veronica spuria L. populations in Ile Alatau mountains, Kazakhstan by Yerkebulan Balkybek, Bekzat Tynybekov, Kanat Kulymbet, Ussen Kurmanbay, Zoya Umirbayeva, Zinat Nurakyn, Assiya Myltykbayeva, Alibek Ydyrys, Murat Toktar

    Published 2024-12-01
    “…On mobile amounts of nutrient elements in dark chestnut soils revealed high amounts of mobile nitrogen, phosphorus and potassium, nitrogen – 547.6-100.8 mg/kg, phosphorus – 28-46 mg/kg, potassium – 170-450 mg/kg. …”
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  12. 1012

    The Effect of Wheat Residues and Vermicompost on the Quality Characteristics of Corn (Zea mays L.) Forage and Soil Fertility by Hasanali Pooresmaeil, Mehdi Dahmradeh, Ahmad Ghanbari

    Published 2025-09-01
    “…Meanwhile, the amount of organic carbon, nitrogen, phosphorus, potassium, calcium, sodium, magnesium and sulfur in the soil were measured, too. …”
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  13. 1013
  14. 1014

    Spatial Changes in Soil Nutrients in Tea Gardens from the Perspective of South-to-North Tea Migration: A Case Study of Shangluo City by Ziqi Shang, Jichang Han, Yonghua Zhao, Ziru Niu, Tingyu Zhang

    Published 2025-01-01
    “…[Method] A total of 228 soil samples from these tea gardens were quantitatively analyzed for pH, soil organic matter (SOM), total nitrogen (TN), total phosphorus (TP), total potassium (TK), available nitrogen (AN), available phosphorus (AP), available potassium (AK), as well as clay, silt, and sand content. …”
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  15. 1015

    Restructuring of small-scale constructed wetland systems and treatability of individual household wastewater through natural process by S. Mokatip, K. Chunkao, W. Wararam, S. Bualert, O. Phewnil, T. Pattamapitoon, N. Semvimol, P. Maskulrath, P. Rollap, S. Thaipakdee

    Published 2024-07-01
    “…Moreover, changes are observed in total nitrogen content, shifting from 20.8 to 2.8 milligrams per liter, in the system’s effluent. …”
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  16. 1016

    Metal-Free Counter Electrode for Efficient Dye-Sensitized Solar Cells through High Surface Area and Large Porous Carbon by Pavuluri Srinivasu, Surya Prakash Singh, Ashraful Islam, Liyuan Han

    Published 2011-01-01
    “…The nitrogen adsorption data reveals that the material possesses BET specific surface area ca.1300 m2/g and pore diameter 4.4 nm. …”
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  17. 1017

    Morphologic and Surface Characterization of Different Types of Activated Carbon Fibres by Jo Anne G. Balanay, Claudiu T. Lungu

    Published 2012-04-01
    “…The microporosity of the ACF materials based on nitrogen isotherms, the percentage of micropores by area and volume, the average pore size and the pore-size distribution were also determined. …”
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  18. 1018

    Application of 2-Trichloromethylbenzimidazole in Analytical Chemistry: A Highly Selective Chromogenic Reagent for Thin-Layer Chromatography and Some Other Analytical Uses by Leszek Konopski, Anna Kiełczewska

    Published 2012-01-01
    “…In reactions of TCMB with some heteroaromatic nitrogen containing compounds, such as azines, azoles and benzazoles, a formation of high colored products occurred. …”
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  19. 1019

    ANALISIS KANDUNGAN UNSUR NPK PADA PUPUK ORGANIK BERBASIS SACHA INCHI (Plukenetia Volubilis) by Fitria Naim, Erni Mohamad, Jafar La Kilo

    Published 2024-12-01
    “…Hasil analisis menujukkan bahwa kandungan nitrogen (N) memiliki nilai 0,32%, fosfor (P) memiliki nilai 1,90% dan kalium (K) memiliki nilai 0,32%. …”
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  20. 1020

    Effects of organic amendments on sand dune fixation by E. A. Elhadi, A. R. Mubarak, F. A. M. Rezig

    Published 2024-01-01
    “…Results Application of organic amendments significantly (P = 0.001) increased soil organic carbon by 224 %, available P by 139.9 %, total nitrogen by 142.9 %, and mineral nitrogen by 83.5 % and decreased soil pH by 5.6 %. …”
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