Home

Results 71 - 80 of 19,245 for nutrient. Search took 7.972 seconds.  
Sort by date/Sort by relevance
DISCUSSION PAPERS SUBMITTED BY MAJOR GROUPS : NOTE : ADDENDUM / BY THE SECRETARIAT
Participation of Swedish farmers in the project: “Focus on nutrients” 50. An interesting illustration of farmers’ participation in Sweden is the project entitled “Focus on nutrients”, which focuses on the protection of water from pesticides and the reduction of nutrient losses in the water. (...) The ultimate objective of this campaign is to increase the efficiency of nutrient management on farms through raising awareness and knowledge sharing. (...) The most important method used is called “farm-gate nutrient balances”. This method of nutrient balances has been successfully used in a previous Swedish project, where farmers calculated yearly nutrient balances for seven years.
Language:English
Score: 903120.6 - daccess-ods.un.org/acce...S=E/CN.17/2004/10/ADD.5&Lang=E
Data Source: ods
INTEGRATED PLANNING AND MANAGEMENT OF LAND RESOURCES : REPORT OF THE SECRETARY-GENERAL
The conversion from forest to grassland or cropland can cause major changes in the nutrient pool and soil biota, as well as infiltration, run-off and soil erosion rates. (...) In undisturbed ecological systems, soil- water-plant relationships ensure nitrogen fixation and inorganic transformation processes; the bacterial and fungal biomass provides a stable nutrient pool. Following mechanical or chemical disturbance, these interactions may be reduced or lost and artificial fertilizers may be required to restore harvested nutrients. 27. (...) In contrast to conventional approaches that replace harvested nutrients through fertilizers and control pests and diseases through agrochemicals, appropriate land management practices enhance the activities of soil biota and the natural processes of nutrient cycling, nitrogen fixation, soil regeneration and pest-predator relationships, as well as improving the effective use of water.
Language:English
Score: 902748.3 - daccess-ods.un.org/acce...DS=E/CN.17/2000/6/ADD.4&Lang=E
Data Source: ods
MEDIUM-TERM WORK-PLAN FOR THE EFFECT-ORIENTED ACTIVITIES : 2004 UPDATE : NOTE / BY THE BUREAU OF THE WORKING GROUP ON EFFECTS IN COLLABORATION WITH THE SECRETARIAT
ICP on Modelling and Mapping of Critical Levels and Loads and Air Pollution Effects, Risks and Trends (ICP Modelling and Mapping) - Updating and evaluation of critical loads for acidification and eutrophication and target load functions for acidification; - First results of large-scale dynamic modelling related to acidification and nutrient nitrogen; - Updating and evaluation of critical loads for heavy metals (Pb, Cd, Hg); - Further development of risk assessment methodologies and robustness assessment; - Evaluation and harmonization of ecosystem data, including base cation deposition and land cover maps (with all ICPs, EMEP and other organizations). 14. (...) EB.AIR/WG.1/2004/4 Page 5 Table Intended main deliverables of the effect-oriented activities for the medium-term work-plan 2004 2005 2006 Acidity · Trends and links to chemistry in biological recovery (W) · Progress report on biological dynamic modelling (W) · Multi-pollutant dose/response functions (MAT) · Updated critical loads maps (MM) · Results of dynamic modelling on European scale to Task Force on Integrated Assessment Modelling (MM; CIAM) · Progress report on dynamic modelling of recovery of surface water chemistry and biology (W) · Report on alkalinity (W) · Update of critical load of waters (W) · Threshold levels for multi-pollutant effects and mapping of areas of exceedance (MAT) · Network for trend analysis (MAT) · Updated critical loads and Europe-wide dynamic modelling results (MM) · Acidification effects on vegetation (IM; F) · Progress report on dynamic modelling (IM) · Report on observed trends in S and N fluxes at IM sites (IM) (see Nutrient N) · Synergies in dynamic modelling (JEG; MM, IM, W, F) · 18-year report (W) · Trends in acidity, growth and defoliation (F) · Updated trends in multi-pollutant corrosion effects (MAT) · Economic assessment of air pollution damage to materials including cultural heritage (MAT) · Updated critical loads and dynamic modelling, particularly synergy with heavy metals (MM) Nutrient nitrogen · Trend analysis (F) · Updated maps of critical loads (MM) · Progress report on N studies (IM) · Report/papers on N effects and C/N interaction (F; IM, MM) · Relationships between N depositions, forest stand structure and species composition of ground vegetation (F) · Temporal trends in N content of mosses in Europe (V) · Updated critical loads (MM) · Preliminary Europe-wide dynamic modelling (MM) · Eutrophication effects on vegetation (IM; F) · Report on observed trends in S and N fluxes at IM sites (IM) (see: Acidity) · Trends in nutrient N, growth and defoliation (F) · Report on interactive impacts of ozone and nitrogen on crops and (semi-)natural vegetation (see Ozone) (V) · Assessment of threats from N deposition to biodiversity (MM) · Updated critical loads and dynamic modelling (MM) Ozone (O3) · Trends in injury and biomass reduction (V) · Concentration- and flux-effect models for crops, semi-natural vegetation and trees (V; F) · Maps of revised critical levels of O3 for Task Force on Integrated Assessment Modelling (V; F, MM) · Exposure assessment and health risk (H) · Final geographical distribution of O3 injuries in forests, incl. list of sensitive species (F) · Relationships between O3 concentrations and ozone symptoms on forest vegetation (F) · Flux-effect model for clover (V) · Comparison of economic impacts on crops using concentration-based and flux-based approaches (V) · Identification of communities of (semi-)natural vegetation at risk (V) · Report on exposure assessment and health risk (H) · Intercalibration of passive sampling and ozone injury (F) · Report on interactive impacts of ozone and nitrogen on crops and (semi-)natural vegetation (see Nutrient N) (V) · Flux-effect models for additional crop species (V) · Flux-effect maps for agricultural species (V) · Risk assessment for (semi-)natural vegetation that includes the influence of modifying factors and improved mapping procedures (V) PM · Assessment of health effects of exposure (H) · Report on assessment of health effects of exposure (H) · Threshold levels for effects of PM on materials (MAT) · Costs and extent of soiling of monuments (MAT) Heavy metals · Report on factors influencing heavy metal content in mosses (V) · Agreed methodology for mapping critical loads of Pb, Cd and Hg (MM) · Advanced maps of critical loads of Cd, Pb and Hg (MM) · Second report on critical loads exceedances for Cd, Pb and Hg with improved maps (MM; MSC-E) · Material for possible review of the Protocol (critical loads maps, risk assessment of other heavy metals (MM, F, W, MAT, IM, V, H) · Report on heavy metal deposition and potential contamination of food crops (V) · Scientific report on heavy metal (IM) · Monitoring of heavy metal in soil on forest sites (F) · Trends in heavy metal in mosses (V) · Update on progress with the 2005 moss survey (V) · Updated health risk assessment of heavy metal (H) · Updated critical loads and preliminary dynamic modelling, particularly synergy with acidity (MM) POPs · Assessment of POPs in aquatic biota (W) · Material for possible review of the Protocol (for existing and new substances) (H) · Health aspects of new POPs (H) (W): ICP Waters; (F): ICP Forests; (MAT): ICP Materials; (V): ICP Vegetation; (MM): ICP Modelling and Mapping; (IM): ICP Integrated Monitoring; (H): Task Force on the Health Aspects of Air Pollution.
Language:English
Score: 902280.7 - daccess-ods.un.org/acce...n&DS=EB.AIR/WG.1/2004/4&Lang=E
Data Source: ods
DYNAMIC MODELLING
The aims of the Joint Expert Group meeting were to examine progress in dynamic modelling of acidification, heavy metals and nutrient nitrogen including the interactions between climate change and air pollution, biological response and terrestrial carbon sequestration. (...) ECE/EB.AIR/WG.1/2014/12 4 B. Nitrogen as a nutrient in terrestrial and freshwater systems 16. (...) The Joint Expert Group noted the efforts undertaken in Norway to investigate the possibility to establish CL for nutrient N on surface waters using biodiversity indicators.
Language:English
Score: 902280.7 - daccess-ods.un.org/acce...ECE/EB.AIR/WG.1/2014/12&Lang=E
Data Source: ods
Microsoft PowerPoint - sunu poplar nutrient 22.10.2012.pptx IPC 24th Session, Dehradun Nov 2012 29/11/2012 1 A STUDY ON DETERMINATION OF  NUTRIENT IN SOME ONE YEAR  AGED POPLAR CLONES  Ahmet KARAKAŞ     General Directorate of Forestry  1 Republic of Turkey Ministry of Forest and Water Affairs 2 A STUDY ON DETERMINATION OF NUTRIENT IN SOME ONE YEAR AGED POPLAR CLONES I-214 77/51 (SAMSUN) S.307/26 (İZMİT) Republic of Turkey Ministry of Forest and Water Affairs Fresh weight Owen dry weight N, P, K, Ca, Mg and Na 3 A STUDY ON DETERMINATION OF NUTRIENT IN SOME ONE YEAR AGED POPLAR CLONES Republic of Turkey Ministry of Forest and Water Affairs 4 A STUDY ON DETERMNATION OF NUTRIENT IN SOME ONE YEAR AGED POPLAR CLONES Republic of Turkey Ministry of Forest and Water Affairs IPC 24th Session, Dehradun Nov 2012 29/11/2012 2 I‐214 : 3,21 ton/ha/year İzmit (S.307/26): 6,74 ton/ha/year Samsun (77/51): 7,04 ton/ha/year 5 A STUDY ON DETERMINATION OF NUTRIENT IN SOME ONE YEAR AGED POPLAR CLONES Republic of Turkey Ministry of Forest and Water Affairs I‐214 : %57,66 İzmit (S.307/26): %64,74 Samsun (77/51): %66,49 6 A STUDY ON DETERMINATION OF NUTRIENT IN SOME ONE YEAR AGED POPLAR CLONES Republic of Turkey Ministry of Forest and Water Affairs N (Nitrogen) I‐214 : %2,51 İzmit (S.307/26): %2,25 Samsun (77/51): %2,80 7 A STUDY ON DETERMINATION OF NUTRIENT IN SOME ONE YEAR AGED POPLAR CLONES Republic of Turkey Ministry of Forest and Water Affairs By annual leaf absicission from poplar clones for N I‐214 :35,03 kg/ha/year İzmit (S.307/26):54,84 kg/ha/year Samsun (77/51):67,86 kg/ha/year 8 A STUDY ON DETERMINATION OF NUTRIENT IN SOME ONE YEAR AGED POPLAR CLONES Republic of Turkey Ministry of Forest and Water Affairs IPC 24th Session, Dehradun Nov 2012 29/11/2012 3 P (Phosphorus) I‐214 : 2026 ppm İzmit (S.307/26): 1768 ppm Samsun (77/51): 2032 ppm 9 A STUDY ON DETERMINATION OF NUTRIENT IN SOME ONE YEAR AGED POPLAR CLONES Republic of Turkey Ministry of Forest and Water Affairs By annual leaf absicission from poplar clones for P I‐214 :2,83 kg/ha/year İzmit (S.307/26):4,31 kg/ha/year Samsun (77/51):4,92 kg/ha/year 10 A STUDY ON DETERMINATION OF NUTRIENT IN SOME ONE YEAR AGED POPLAR CLONES Republic of Turkey Ministry of Forest and Water Affairs K (Potassium) I‐214 : 16104 ppm İzmit (S.307/26): 12674 ppm Samsun (77/51): 11599 ppm 11 A STUDY ON DETERMINATION OF NUTRIENT IN SOME ONE YEAR AGED POPLAR CLONES Republic of Turkey Ministry of Forest and Water Affairs By annual leaf absicission from poplar clones for K I‐214 : 22,48 kg/ha/year İzmit (S.307/26): 30,89 kg/ha/year Samsun (77/51): 28,11 kg/ha/year 12 A STUDY ON DETERMINATION OF NUTRIENT IN SOME ONE YEAR AGED POPLAR CLONES Republic of Turkey Ministry of Forest and Water Affairs IPC 24th Session, Dehradun Nov 2012 29/11/2012 4 Ca (Calcium) I‐214 : 19749 ppm İzmit (S.307/26): 22680 ppm Samsun (77/51): 22711 ppm 13 A STUDY ON DETERMINATION OF NUTRIENT IN SOME ONE YEAR AGED POPLAR CLONES Republic of Turkey Ministry of Forest and Water Affairs By annual leaf absicission from poplar clones for Ca I‐214 : 27,56 kg/ha/year İzmit (S.307/26): 55,28 kg/ha/year Samsun (77/51): 55,04 kg/ha/year 14 Republic of Turkey Ministry of Forest and Water Affairs A STUDY ON DETERMINATION OF NUTRIENT IN SOME ONE YEAR AGED POPLAR CLONES Mg (Magnesium) I‐214 : 3131 ppm İzmit (S.307/26): 4100 ppm Samsun (77/51): 5580 ppm 15 Republic of Turkey Ministry of Forest and Water Affairs A STUDY ON DETERMINATION OF NUTRIENT IN SOME ONE YEAR AGED POPLAR CLONES By annual leaf absicission from poplar clones for Mg I‐214 : 4,37 kg/ha/year İzmit (S.307/26): 10,00 kg/ha/year Samsun (77/51): 13,52 kg/ha/year 16 Republic of Turkey Ministry of Forest and Water Affairs A STUDY ON DETERMINATION OF NUTRIENT IN SOME ONE YEAR AGED POPLAR CLONES IPC 24th Session, Dehradun Nov 2012 29/11/2012 5 Na (Sodium) I‐214 : 718,5 ppm İzmit (S.307/26): 802,8 ppm Samsun (77/51): 880,1 ppm 17 A STUDY ON DETERMINATION OF NUTRIENT IN SOME ONE YEAR AGED POPLAR CLONES Republic of Turkey Ministry of Forest and Water Affairs By annual leaf absicission from poplar clones for Na I‐214 : 1,00 kg/ha/year İzmit (S.307/26): 1,95 kg/ha/year Samsun (77/51): 2,13 kg/ha/year 18 A STUDY ON DETERMINATION OF NUTRIENT IN SOME ONE YEAR AGED POPLAR CLONES Republic of Turkey Ministry of Forest and Water Affairs DISCUSSION and CONCLUSION 19 A STUDY ON DETERMINATION OF NUTRIENT IN SOME ONE YEAR AGED POPLAR CLONES Republic of Turkey Ministry of Forest and Water Affairs Accordingly, the highest value were obtained from Samsun (I‐77/51) 65,6 %  İzmit (S.307/26) 63,8 %  I‐214 56,6 %  20 A STUDY ON DETERMINATION OF NUTRIENT IN SOME ONE YEAR AGED POPLAR CLONES Republic of Turkey Ministry of Forest and Water Affairs IPC 24th Session, Dehradun Nov 2012 29/11/2012 6 CLONES NUTRIENT ELEMENTS (kg/ha/yr) N P K Mg Ca Na I-214 35,03 2,83 22,48 4,37 27,56 1.00 SAMSUN (I-77/51) 67,86 4,92 28,11 13,52 55,04 2,13 İZMİT (S.307/26) 54,84 4,31 30,89 10,00 55,28 1,95 21 A STUDY ON DETERMINATION OF NUTRIENT IN SOME ONE YEAR AGED POPLAR CLONES Republic of Turkey Ministry of Forest and Water Affairs The order of plant nutrient elements N > Ca > K > Mg > P > Na 22 A STUDY ON DETERMINATION OF NUTRIENT IN SOME ONE YEAR AGED POPLAR CLONES Republic of Turkey Ministry of Forest and Water Affairs CLONES NUTRIENT ELEMENTS (%) N P K Mg Ca Na I-214 2,51 0,20 1,61 0,31 1,97 0,07 SAMSUN (I-77/51) 2,80 0,20 1,15 0,55 2,27 0,08 İZMİT (S.307/26) 2,25 0,17 1,26 0,41 2,26 0,08 23 A STUDY ON DETERMINATION OF NUTRIENT IN SOME ONE YEAR AGED POPLAR CLONES Republic of Turkey Ministry of Forest and Water Affairs the percentage order of the plant nutrient elements in the leaves N>Ca>K>Mg>P>Na.  24 A STUDY ON DETERMINATION OF NUTRIENT IN SOME ONE YEAR AGED POPLAR CLONES Republic of Turkey Ministry of Forest and Water Affairs IPC 24th Session, Dehradun Nov 2012 29/11/2012 7 In this study potassium is  determined as the third most abundant element in poplar clones after nitrogen and calcium 25 A STUDY ON DETERMINATION OF NUTRIENT IN SOME ONE YEAR AGED POPLAR CLONES Republic of Turkey Ministry of Forest and Water Affairs 26 THANKS FOR YOUR ATTENTION
Language:English
Score: 902208.3 - https://www.fao.org/forestry/d...b03cfbc8d73a59094c9f568e98.pdf
Data Source: un
The FAOSTAT domain “Soil nutrient budget” disseminates nutrient flows in a given country and year. (...) It can also signal soil nutrient deficits that limit crop production.  The latest FAOSTAT analytical brief focuses on  the nutrient nitrogen. Nutrient budgets are presented both as total nutrient flows and per area of cropland. 
Language:English
Score: 901359.3 - https://www.fao.org/food-agric...a-release-detail/en/c/1397745/
Data Source: un
THE NEW INTERNATIONAL ECONOMIC ORDER AND THE PROMOTION OF HUMAN RIGHTS : WRITTEN STATEMENT
To begin with, i t is essential to recognize that relative "adequacy" must be measured, not just in terms of total daily calories (available energy from food), but in terms of a l l nutrients required for normal human development and functioning. (...) At the present time we know much more about problems associated with particular nutritional deficiencies, than we know about the optimum diet, in teirms of a l l nutrients, for any group. "Minimiim daily requirements" of nutrients are scarcely precise, and are being revised frequently on the basis of ongoing medical research. (...) States should determine, in advance of any projet, (a) the current nutritional and health status of the group which w i l l be affected, including any special dietary sensitivities; (b) the likely effect of the project of local food production ac t i v i t i e s , food imports, and the quantity and variety of nutrients in the local diet; and (c) the probable impact of the project on the group's nutritional and health status.
Language:English
Score: 901050.4 - daccess-ods.un.org/acce...E/CN.4/SUB.2/1987/NGO/4&Lang=E
Data Source: ods
Nutrient sources include chemical and mineral fertilizers, organic fertilizers, such as livestock manures and composts, and sources of recycled nutrients. (...) A fertile soil also provides essential nutrients for plant growth, to produce healthy food with all the necessary nutrients needed for human health. (...) Farmers can improve soil fertility and soil health by optimizing soil nutrient management in terms of maximizing net returns, minimizing the soil nutrients depletion, and minimizing nutrient losses or negative impacts on the environment.
Language:English
Score: 900340.4 - https://www.fao.org/global-soi...eas-of-work/soil-fertility/fr/
Data Source: un
Nutrient sources include chemical and mineral fertilizers, organic fertilizers, such as livestock manures and composts, and sources of recycled nutrients. (...) A fertile soil also provides essential nutrients for plant growth, to produce healthy food with all the necessary nutrients needed for human health. (...) Farmers can improve soil fertility and soil health by optimizing soil nutrient management in terms of maximizing net returns, minimizing the soil nutrients depletion, and minimizing nutrient losses or negative impacts on the environment.
Language:English
Score: 900340.4 - https://www.fao.org/global-soi...eas-of-work/soil-fertility/en/
Data Source: un
Nutrient sources include chemical and mineral fertilizers, organic fertilizers, such as livestock manures and composts, and sources of recycled nutrients. (...) A fertile soil also provides essential nutrients for plant growth, to produce healthy food with all the necessary nutrients needed for human health. (...) Farmers can improve soil fertility and soil health by optimizing soil nutrient management in terms of maximizing net returns, minimizing the soil nutrients depletion, and minimizing nutrient losses or negative impacts on the environment.
Language:English
Score: 900340.4 - https://www.fao.org/global-soi...eas-of-work/soil-fertility/ru/
Data Source: un