ADAS, 2007, Nitrates in water – the current status in England, Diffuse nitrate pollution from agriculture strategies for reducing nitrate leaching, report to Defra – supporting paper D3 for the consultation on the implementation of the Nitrates Directive in England, p. 22.
APHA, 2005, Standard methods for the examination of water and wastewater, 20th edition, APHA, AWWA, WEF Anthropogenic Pollution Journal, Vol 4 (1), 2020: 24-35 33 Publication, Washington D.C.
Bechmann M.2014, Nitrogen losses from agriculture in the Baltic Sea region. Agriculture, Ecosystems and Environment. 198(15):13–24. doi: 10.1016/j.agee. 2014.05.010.
Billen G, Garnier J, Lassaletta L.2013, The nitrogen cascade from agricultural soils to the sea: modeling nitrogen transfers at regional watershed and global scales. Philosophical Transactions of the Royal Society B. 368:1–13. doi: 10.1098/rstb.2013.0123.
Cakmak I. 2005, The role of potassium in alleviating determinal effects of abiotic stresses in plants. Journal of Plant Nutrition and Soil Science. 168:521–530. doi: 10.1002/jpln.200420485.
Corteel C, Dini A, Deyhle A. 2005, Element and isotope mobility during water–rock interaction processes. Phys Chem Earth 30:993–996.
Chen, J. Y., Tang, C. Y., Sakura, Y., Kondoh, A. &Shen, Y. J. 2002 Groundwater flow and geochemistry in the lower reaches of the Yellow River: a case study in Shandong Province, China. Hydrogeol. J. 10, 587–599.
Daniela Ducci, 2018, An Easy-to-Use Method for Assessing Nitrate Contamination Susceptibility in Groundwater, Geofluids Volume, Article ID 1371825, https://doi.org/10.1155/2018/1371825
Ecological Society of America(ESA), 2000, Nutrient Pollution of Coastal , Rivers, Bays, and Seas,Issues in Ecology, Number 7, http://esa.sdsc.edu/
Ehteshami Majid , Biglarijoo Nader, 2014, Determination of Nitrate Concentration in Groundwater in Agricultural Area in Babol County, Iran, Iranian Journal of Health Sciences 2014; 2(4).
Fageria VD. 2001, Nutrient interactions in crop plants. Journal of Plant Nutrition. 2001; 2498:1269–1290. doi: 10.1081/PLN-100106981. [Cross Ref]
Fars Metrological Bureau, 2020. http://www.farsmet.ir/ReportAmar.aspx Garnier M, Recanatesi F, Ripa MN, Leone A. 2010, Agricultural nitrate monitoring in a lake basin in central Italy: a further step ahead towards an integrated nutrient management aimed at controlling water pollution. Environmental Monitoring and Assessment. 170:273–286. doi: 10.1007/s10661- 009-1231-z. [PubMed] [Cross Ref]
Gholami Deljomanesh E, Fataei1 E, Ghodrati A, Mostafavi Rad M. 2017, Accumulation of dry matter and nitrogen in the shoots of maize (Zea mays L.) and nitrogen leaching as affected by organic and chemical nitrogen fertilizers in Guilan province, Journal of Research in Ecology, 5(2): 1052-1059.
Güsewell S. 2004, N:P ratios in terrestrial plants: variation and functional significance. New Phytologist. 164:243–266. doi: 10.1111/j.1469-8137.2004.01192.x. [Cross Ref]
Güsewell S, Koerselman W, Verhoeven JTA. 2003, N:P ratios as indicators of nutrient limitation for plant populations in wetlands. Ecological Applications. 13(2):372–384. doi: 10.1890/1051- 0761(2003)013[0372:BNRAIO]2.0.CO;2. [Cross Ref]
Hamilton, P. A. &Helsel, D. A. 1995, Effects of agriculture on ground-water quality in five regions of the United States. Ground Water 33, (9 pages).
Harrison, R. and Silgram, M. 1998. Final report to MAFF on project NT1508 (cover crops). Includes Appendix: the mineralisation of nitrogen in cover crops – a review.
Jiang R, Hatano R, Zhao Y, Woli KP, Kuramochi K, Shimizu M, Hayakawa A. 2014, Factors controlling nitrogen and dissolved organic carbon exports across timescales in two watersheds with different Anthropogenic Pollution Journal, Vol 4 (1), 2020: 24-35 34 land uses.
Hydrological Processes. 28:5105–5121. doi: 10.1002/hyp.9996.
Kyllmar K, Bechmann M, Deelstra J, Iital A, Blicher-Mathiesen G, Jansons V. 2014, Long-term monitoring of nutrient losses from agricultural catchments in the Nordic-Baltic region: a discussion of methods, uncertainties and future needs. Agriculture, Ecosystems & Environment. 198:4–12. doi: 10.1016/j.agee.07.005.[Cross Ref]
Kyllmar K, Stjernman Forsberg L, Andersson S, Mårtensson K. 2014, Small agricultural monitoring catchments in Sweden representing environmental impact. Agriculture, Ecosystems & Environment. 198:25–35. doi: 10.1016/j. agee.2014.05.016.[Cross Ref]
Kaneko, S., Kondoh, A., Shen, Y. & Tang, C. 2005, The inter-relationship of the water cycle, crop production, and human activities in North China Plain. J. Japan Soc. Hydrology and Water Resources 18(5), 575–583.
Lawniczak AE. 2011, Response of two wetland graminoids to N:K supply ratios in a two-year growth experiment. Journal of Elementology. 16(3):421–437.
Lawniczak AE, Choiński A, Kurzyca I. 2011, Dynamics of lake morphometry and bathymetry in various hydrological conditions. Polish Journal of Environmental Studies. 20(4):931–940.
Lawniczak AE, Güsewell S, Verhoeven JTA. 2009, Effect of N:K supply ratios on the performance of three grass species from herbaceous wetlands. Basic and Applied Ecology. 10(8):715–725. doi: 10.1016/j.baae.2009.05.004. [Cross Ref]
Mostafavi, H, Teimori A. 2018, Investigating multiple human pressure types in the southern Caspian Sea Basin Rivers at different spatial scales toward Integrating Water Resource Management (IWRM) in Iran. Anthropogenic Pollution Journal, 2(1): 38-47 .DOI: 10.22034/ap.2018.538376.
Stuart, D.C. Gooddy, J.P. Bloomfield, A.T. Williams, 2011, A review of the impact of climate change on future nitrate concentrations in groundwater of the UK M.E. Science of the Total Environment 409, 2859–2873.
Szczepaniak W, Barłóg P, Łukowiak R, Przygocka-Cyna K. 2013, Effect of balanced nitrogen fertilization in four-year rotation on plant productivity. Journal of Central European Agriculture. 14(1):64–77. doi: 10.5513/JCEA01/14.1.1157. [Cross Ref]
Szczepaniak W., Grzebisz W. , Jarosław P. 2014, An assessment of the effect of potassium fertilizing systems on maize nutritional status in critical stages of growth by plant analysis ,J. Elem. s. 533– 548 DOI: 10.5601/jelem.2014.19.1.576 1.
Tang, C., Chen, J., &Shen, Y. 2003, Long-term effect of wastewater irrigation on nitrate in groundwater in the North ChinaPlain. In: Wastewater Re-use and Groundwater Quality (ed. by J. Steenvorden& T. Endreny), 34–40.
IAHS Publ. 285. IAHS Press, Wallingford, UK. Tang, C., Chen, J., Shindo, S., Sakura, Y., Zhang, W. &Shen, Y. 2004 Assessment of groundwater contamination by nitrates associated with wastewater irrigation: a case study in Shijiazhuang region, China. Hydrol. Processes 18, 2303–2312.
Yanjun Sh. 2011, Effects of agricultural activities on nitrate contamination of groundwater in a Yellow River irrigated region, Water Quality: Current Trends and Expected Climate Change Impacts (Proceedings of symposium H04 held during IUGG in Melbourne, Australia, (IAHS Publ. 348).
Yoon GH. 2005, Leaching of nitrogen and phosphorus from agricultural soils with different cropping practices and with respect to preferential transport. Göttingen: Kiel, University, Diss. Cuvillier Verlag. Anthropogenic Pollution Journal, Vol 4 (1), 2020: 24-35 35
Woli KP, Hayakawa A, Kuramochi K, Hatano R. 2008, Assessment of river water quality during snowmelt and base flow periods in two catchment areas with different land use. Environmental Monitoring and Assessment. 137(1-3):251–60. doi: 10.1007/s10661-007-9757-4. [PubMed] [Cross Ref]
Zhang, W. L., Tian, Z. X., Zhang, N. & Li, X. Q. 1996, Nitrate pollution of groundwater in northern China. Agric. Ecosystems& Environ. 59, 223–231.