Pupuk (Indonesian Wikipedia)

Moore, Geoff (2001). Soilguide - A handbook for understanding and managing agricultural soils (PDF). Perth, Western Australia: Agriculture Western Australia. hlm. 161–207. ISBN 0 7307 0057 7. Diarsipkan dari versi asli (PDF) tanggal 2018-03-27. Diakses tanggal 2013-12-10.

alodokter.com

https://www.alodokter.com/hiperkalemia

annualreviews.org

arjournals.annualreviews.org

Roots, Nitrogen Transformations, and Jillesha Services^{[pranala nonaktif permanen]} Annual Review of Plant Biology Vol. 59: 341–363

archive.org

Lawrence, Felicity (2004). "214". Dalam Kate Barker. Not on the Label. Penguin. hlm. 213. ISBN 0-14-101566-7.
Carroll and Salt, Steven B. and Steven D. (2004). Ecology for Gardeners. Cambridge: Timber Press. ISBN 9780881926118.

arizona.edu

ag.arizona.edu

"AZ Master Gardener Manual: Organic Fetilizers". Ag.arizona.edu. Diakses tanggal 2010-08-25.

asm.org

aem.asm.org

Lemunier, Mélanie (October 2005). "Long-Term Survival of Pathogenic and Sanitation Indicator Bacteria in Experimental Biowaste Composts". Applied and Environmental Microbiology. 71 (10): 5779–5786. doi:10.1128/AEM.71.10.5779-5786.2005. Diarsipkan dari versi asli tanggal 2013-11-19. Diakses tanggal 2 January 2013.

cmr.asm.org

(Inggris) J. W. Bennett, M. Klich (2003). "Mycotoxins". Clinical Microbiology Reviews. 16 (3): 497–516. doi:10.1128/CMR.16.3.497–516.2003 Periksa nilai |doi= (bantuan). Diarsipkan dari versi asli tanggal 2010-07-06.

books.google.com

Uphoff, Norman Thomas (2006). Biological approaches to sustainable ... – Google Books. ISBN 978-1-57444-583-1. Diakses tanggal 2010-08-25.

calorganicfarms.com

"CalOrganic Farms News". Calorganicfarms.com. Diarsipkan dari versi asli tanggal 2011-05-04. Diakses tanggal 2010-08-25.

chemicalland21.com

NPK (Fertilizer)

clemson.edu

hubcap.clemson.edu

"Nitrogen Fertilization: General Information". Hubcap.clemson.edu. Diarsipkan dari versi asli tanggal 2012-06-29. Diakses tanggal 2012-06-17.

colostate.edu

ext.colostate.edu

"Phosphorus Fertilizers for Organic Farming Systems". CO State Extension. Diarsipkan dari versi asli tanggal 2013-11-10. Diakses tanggal 2013-12-10.
"Organic Materials as *Nitrogen Fertilizers". CO State Extension. Diarsipkan dari versi asli tanggal 2013-11-10. Diakses tanggal 2013-12-10.

defra.gov.uk

Defra. "Nitrates and watercourses". Diarsipkan dari versi asli tanggal 2013-03-13. Diakses tanggal 2013-12-10.
Defra. "Catchment-Sensitive Farming". Diarsipkan dari versi asli tanggal 2011-06-30. Diakses tanggal 2013-12-10.

deptan.go.id

lampung.litbang.deptan.go.id

Alvi Yani (2009). "Detoksifikasi Biologis Berbagai Mikotoksin pada Bahan Pangan". Balai Pengkajian Teknologi Pertanian Lampung. Diarsipkan dari versi asli tanggal 2014-01-18.

detik.com

finance.detik.com

(Indonesia) http://finance.detik.com/read/2007/11/28/161833/858899/4/hengam-petrochemical-company-pabrik-pupuk-patungan-ri-iran

discovery.com

dsc.discovery.com

John Heilprin, Associated Press. "Discovery Channel :: News – Animals :: U.N.: Ocean 'Dead Zones' Growing". Dsc.discovery.com. Diakses tanggal 2010-08-25.

doi.org

Enwall, Karin (December 2005). "Activity and Composition of the Denitrifying Bacterial Community Respond Differently to Long-Term Fertilization". Applied and Environmental Microbiology. American Society for Microbiology. 71 (2): 8335–8343. doi:10.1128/AEM.71.12.8335-8343.2005. PMC 1317341 . PMID 16332820. Diarsipkan dari versi asli tanggal 2011-10-02. Diakses tanggal Feb 1, 2010.
Birkhofera, Klaus (September 2008). "Long-term organic farming fosters below and aboveground biota: Implications for soil quality, biological control and productivity". Soil Biology and Biochemistry. Soil Biology and Biochemistry. 40 (9): 2297–2308. doi:10.1016/j.soilbio.2008.05.007. Diakses tanggal Feb 1, 2010. ^{[pranala nonaktif permanen]}
Lal, R. (2004). "Soil Carbon Sequestration Impacts on Global Climate Change and Food Security". Science. Science (journal). 304 (5677): 1623–7. Bibcode:2004Sci...304.1623L. doi:10.1126/science.1097396. PMID 15192216.
Mäder, Paul (May 31, 2002). "Soil Fertility and Biodiversity in Organic Farming". Science. Science. 296 (5573): 1694–1697. Bibcode:2002Sci...296.1694M. doi:10.1126/science.1071148. PMID 12040197. Diakses tanggal February 1, 2010.
Lemunier, Mélanie (October 2005). "Long-Term Survival of Pathogenic and Sanitation Indicator Bacteria in Experimental Biowaste Composts". Applied and Environmental Microbiology. 71 (10): 5779–5786. doi:10.1128/AEM.71.10.5779-5786.2005. Diarsipkan dari versi asli tanggal 2013-11-19. Diakses tanggal 2 January 2013.
Glass, Anthony (September 2003). "Nitrogen Use Efficiency of Crop Plants: Physiological Constraints upon Nitrogen Absorption". Critical Reviews in Plant Sciences. 22 (5): 453. doi:10.1080/713989757.
Vance (2003). "Phosphorus acquisition and use: critical adaptations by plants for securing a non renewable resource". New Phythologist. Blackwell Publishing. 157 (3): 423–447. doi:10.1046/j.1469-8137.2003.00695.x. JSTOR 1514050.
Bodelier, Paul, L.E. (November 1999). "Stimulation by ammonium-based fertilizers of methane oxidation in soil around rice roots". Nature. 403 (6768): 421–424. Bibcode:2000Natur.403..421B. doi:10.1038/35000193. PMID 10667792. Diakses tanggal Feb 2, 2009.
(Inggris) J. W. Bennett, M. Klich (2003). "Mycotoxins". Clinical Microbiology Reviews. 16 (3): 497–516. doi:10.1128/CMR.16.3.497–516.2003 Periksa nilai |doi= (bantuan). Diarsipkan dari versi asli tanggal 2010-07-06.
Schmidt-Rohr K (2015). "Why Combustions Are Always Exothermic, Yielding About 418 kJ per Mole of O₂". J. Chem. Educ. 92: 2094–2099. doi:10.1021/acs.jchemed.5b00333 .

dx.doi.org

http://www.nature.com/nature/journal/v451/n7176/fig_tab/nature06592_F1.html An Earth-system perspective of the global nitrogen cycle Nicolas Gruber & James N. Galloway Nature 451, 293–296(17 January 2008) DOI:10.1038/nature06592

ecochem.com

"In a natural organic system, nitrate in the soil is derived from the gradual breakdown of humus". Ecochem.com. Diakses tanggal 2010-08-25.

economist.com

"Mergers in the fertiliser industry". The Economist. February 18, 2010. Diakses tanggal February 21, 2010.

ehponline.org

Lynda Knobeloch, Barbara Salna, Adam Hogan, Jeffrey Postle, and Henry Anderson. "Blue Babies and Nitrate-Contaminated Well Water". Ehponline.org. Diarsipkan dari versi asli tanggal 2009-05-15. Diakses tanggal 2010-08-25.

epa.gov

"Organic Farming | Agriculture | US EPA". Epa.gov. Diakses tanggal 2010-08-25.
"Polluted Runoff". EPA. Diakses tanggal 26 January 2013.

water.epa.gov

"Biosolids: Targeted National Sewage Sludge Survey Report". EPA.gov. 2009-01.

europa.eu

ec.europa.eu

European Union. "Nitrates Directive".

fertilizer.org

"IFA – Statistics – Fertilizer Indicators – Details – Raw material reserves, (2002–10)". Diarsipkan dari versi asli tanggal 2008-04-24. Diakses tanggal 2013-12-10.

grounds-mag.com

J. B. Sartain, University of Florida ((c)2011), "Food for turf: Slow-release nitrogen", Grounds Maintenance, diarsipkan dari versi asli tanggal 2019-10-29, diakses tanggal 2013-09-16

harrodhorticultural.com

Organic Fish, Blood and Bone Feed - Harrod Horticultural (UK)^{[pranala nonaktif permanen]}

harvard.edu

adsabs.harvard.edu

Lal, R. (2004). "Soil Carbon Sequestration Impacts on Global Climate Change and Food Security". Science. Science (journal). 304 (5677): 1623–7. Bibcode:2004Sci...304.1623L. doi:10.1126/science.1097396. PMID 15192216.
Mäder, Paul (May 31, 2002). "Soil Fertility and Biodiversity in Organic Farming". Science. Science. 296 (5573): 1694–1697. Bibcode:2002Sci...296.1694M. doi:10.1126/science.1071148. PMID 12040197. Diakses tanggal February 1, 2010.
Bodelier, Paul, L.E. (November 1999). "Stimulation by ammonium-based fertilizers of methane oxidation in soil around rice roots". Nature. 403 (6768): 421–424. Bibcode:2000Natur.403..421B. doi:10.1038/35000193. PMID 10667792. Diakses tanggal Feb 2, 2009.

highwire.org

aem.highwire.org

Enwall, Karin (December 2005). "Activity and Composition of the Denitrifying Bacterial Community Respond Differently to Long-Term Fertilization". Applied and Environmental Microbiology. American Society for Microbiology. 71 (2): 8335–8343. doi:10.1128/AEM.71.12.8335-8343.2005. PMC 1317341 . PMID 16332820. Diarsipkan dari versi asli tanggal 2011-10-02. Diakses tanggal Feb 1, 2010.

iastate.edu

ipm.iastate.edu

Sawyer JE (2001). "Natural gas prices affect nitrogen fertilizer costs". IC-486. 1: 8.

improve-your-garden-soil.com

"Avoiding Fertilizer Burn". Improve-your-garden-soil.com. Diakses tanggal 2012-06-17.

indoplaces.com

(Indonesia) http://www.indoplaces.com/mod.php?mod=indonesia&op=view_region&cid=1&regid=3398

ingentaconnect.com

Glass, Anthony (September 2003). "Nitrogen Use Efficiency of Crop Plants: Physiological Constraints upon Nitrogen Absorption". Critical Reviews in Plant Sciences. 22 (5): 453. doi:10.1080/713989757.

initrogen.org

"Human alteration of the nitrogen cycle, threats, benefits and opportunities" Diarsipkan 2009-01-14 di Wayback Machine. UNESCO – SCOPE Policy briefs, April 2007

iop.org

Fliessbach, A. (2009). "ClimateChange: GlobalRisks,ChallengesandDecisions" (PDF). P24.17 Mitigation and adaptation strategies – organic agriculture. IOPConf. Series: EarthandEnvironmentalScience6(2009)242025: IOP Publishing. Diakses tanggal February 2, 2010. ^{[pranala nonaktif permanen]}

ipni.net

"Potash KCl fertilizer production" (PDF). Diarsipkan dari versi asli (PDF) tanggal 2012-12-02. Diakses tanggal 2013-12-10.

irishtimes.com

"Human urine conversion to struvite". Irishtimes.com. 2010-06-06. Diarsipkan dari versi asli tanggal 2012-10-24. Diakses tanggal 2012-06-17.

jstor.org

Vance (2003). "Phosphorus acquisition and use: critical adaptations by plants for securing a non renewable resource". New Phythologist. Blackwell Publishing. 157 (3): 423–447. doi:10.1046/j.1469-8137.2003.00695.x. JSTOR 1514050.

merck.com

"Carbohydrates, Proteins, Nutrition". The Merck Manual.

metricviews.org.uk

"Prospects improve for food energy labelling using SI units". Metric Views. UK Metric Association. 24 February 2012. Diarsipkan dari versi asli tanggal 2020-10-03. Diakses tanggal 17 April 2013.

msuorganicfarm.com

"Crazy about Compost" (PDF). Diakses tanggal 2010-08-25.

nature.com

Bodelier, Paul, L.E. (November 1999). "Stimulation by ammonium-based fertilizers of methane oxidation in soil around rice roots". Nature. 403 (6768): 421–424. Bibcode:2000Natur.403..421B. doi:10.1038/35000193. PMID 10667792. Diakses tanggal Feb 2, 2009.
http://www.nature.com/nature/journal/v451/n7176/fig_tab/nature06592_F1.html An Earth-system perspective of the global nitrogen cycle Nicolas Gruber & James N. Galloway Nature 451, 293–296(17 January 2008) DOI:10.1038/nature06592

ncsu.edu

soil.ncsu.edu

Zublena, J.P. (1991). "SoilFacts - Nutrient Content of Fertilizer and Organic Materials". North Carolina Cooperative Extension Service. Diarsipkan dari versi asli tanggal 2013-12-12. Diakses tanggal 3 January 2013.

nih.gov

ncbi.nlm.nih.gov

Enwall, Karin (December 2005). "Activity and Composition of the Denitrifying Bacterial Community Respond Differently to Long-Term Fertilization". Applied and Environmental Microbiology. American Society for Microbiology. 71 (2): 8335–8343. doi:10.1128/AEM.71.12.8335-8343.2005. PMC 1317341 . PMID 16332820. Diarsipkan dari versi asli tanggal 2011-10-02. Diakses tanggal Feb 1, 2010.
Lal, R. (2004). "Soil Carbon Sequestration Impacts on Global Climate Change and Food Security". Science. Science (journal). 304 (5677): 1623–7. Bibcode:2004Sci...304.1623L. doi:10.1126/science.1097396. PMID 15192216.
Mäder, Paul (May 31, 2002). "Soil Fertility and Biodiversity in Organic Farming". Science. Science. 296 (5573): 1694–1697. Bibcode:2002Sci...296.1694M. doi:10.1126/science.1071148. PMID 12040197. Diakses tanggal February 1, 2010.
Bodelier, Paul, L.E. (November 1999). "Stimulation by ammonium-based fertilizers of methane oxidation in soil around rice roots". Nature. 403 (6768): 421–424. Bibcode:2000Natur.403..421B. doi:10.1038/35000193. PMID 10667792. Diakses tanggal Feb 2, 2009.

pubmedcentral.nih.gov

USA (2010-07-06). "Isolation and Study of Cultures of Chinese Vetch Nodule Bacteria". Pubmedcentral.nih.gov. Diakses tanggal 2010-08-25.

nofa.org

"NOFA Interstate Council: The Natural Farmer. Ecologically Sound Nitrogen Management. Mark Schonbeck". Nofa.org. 2004-02-25. Diarsipkan dari versi asli tanggal 2004-03-24. Diakses tanggal 2010-08-25.

nytimes.com

"Rapid Growth Found in Oxygen-Starved Ocean ‘Dead Zones’", NY Times, Aug. 14, 2008

permaculture.org.au

NPK ratios of common organic materials

pertanian.go.id

cybex.pertanian.go.id

http://cybex.pertanian.go.id/mobile/artikel/90842/Pengertian-Asam-Humat-Dan-Asam-Fulvat-Serta-Manfaatnya-Untuk-Tanaman/

petronet.ir

(Inggris)http://www.petronet.ir/index.php?module=sisRapid&func=loadmodule&system=organization&sismodule=org_specification/org_form_view.php&sisOp=view&org_id=1550&newlang=eng^{[pranala nonaktif permanen]}

pupuk-indonesia.com

(Indonesia) Kepemilikan saham PT Pupuk Indonesia

pupuk-kujang.co.id

(Indonesia) Lauching Nama dan Logo Baru Holding Pupuk^{[pranala nonaktif permanen]}

purdue.edu

ces.purdue.edu

Animal Manure As a Plant Nutrient Resource, Bulletin ID-101 (Reviewed 02/05/01), Cooperative Extension Service, Purdue University. West Lafayette, IN 47907 [2] Diarsipkan 2012-03-12 di Wayback Machine.

pusri.co.id

(Indonesia) http://www.pusri.co.id/50publikasi01.php?tipeid=DD&pubid=pub20070045^{[pranala nonaktif permanen]}

sciencedirect.com

Birkhofera, Klaus (September 2008). "Long-term organic farming fosters below and aboveground biota: Implications for soil quality, biological control and productivity". Soil Biology and Biochemistry. Soil Biology and Biochemistry. 40 (9): 2297–2308. doi:10.1016/j.soilbio.2008.05.007. Diakses tanggal Feb 1, 2010. ^{[pranala nonaktif permanen]}
"Journal of Contaminant Hydrology - Fertilizer-N use efficiency and nitrate pollution of groundwater in developing countries". ScienceDirect.com. Diakses tanggal 2012-06-17. ^{[pranala nonaktif permanen]}

sciencemag.org

Lal, R. (2004). "Soil Carbon Sequestration Impacts on Global Climate Change and Food Security". Science. Science (journal). 304 (5677): 1623–7. Bibcode:2004Sci...304.1623L. doi:10.1126/science.1097396. PMID 15192216.
Mäder, Paul (May 31, 2002). "Soil Fertility and Biodiversity in Organic Farming". Science. Science. 296 (5573): 1694–1697. Bibcode:2002Sci...296.1694M. doi:10.1126/science.1071148. PMID 12040197. Diakses tanggal February 1, 2010.
http://www.sciencemag.org/cgi/content/full/324/5928/721-b#R1

scijournals.org

soil.scijournals.org

"Salinan arsip". Diarsipkan dari versi asli tanggal 2010-06-18. Diakses tanggal 2013-12-10.

scribd.com

"Zinc is Soils and Crop Nutrition". Scribd.com. 2010-08-25. Diakses tanggal 2012-06-17.

soils.org

"Glossary of Soil Science Terms". Soil Science Society of America. Diakses tanggal May 10, 2011.

theecologist.org

Rees, Eifion (July 3, 2009). "Change farming to cut CO₂ emissions by 25 per cent". The Ecologist. Diakses tanggal February 2, 2010.

theglobaleducationproject.org

Commercial fertilizers increase crop yields [1] Accessed 9 Apr 2012

ucdavis.edu

ipm.ucdavis.edu

"Healthy LawnsFertilizers vs. soil amendments". Ipm.ucdavis.edu. Diakses tanggal 2010-08-25. C1 control character di |title= pada posisi 14 (bantuan)

ucpress.net

caliber.ucpress.net

PIMENTEL, David (July 2005). "Environmental, Energetic, and Economic Comparisons of Organic and Conventional Farming Systems". BioScience. hlm. ol. 55, No. 7, Pages 573–582. Diarsipkan dari versi asli tanggal 2012-12-05. Diakses tanggal February 2, 2010.

umn.edu

extension.umn.edu

"Maintaining Soil Fertility in an Organic Fruit and Vegetable Crops System". University of MN Extension. Diarsipkan dari versi asli tanggal 2013-11-10. Diakses tanggal 2013-12-10.
George Rehm, Michael Schmitt, John Lamb, Gyes Randall, and Lowell Busman (Reviewed 2010). "Understanding Phosphorus Fertilizers". University of Minnesota Extension Service. Diarsipkan dari versi asli tanggal 2013-09-05. Diakses tanggal 2013-09-16.
C. J. Rosen and B. P. Horgan (2009-01-09). "Preventing Pollution Problems from Lawn and Garden Fertilizers". Extension.umn.edu. Diarsipkan dari versi asli tanggal 2010-10-07. Diakses tanggal 2010-08-25.

usda.gov

ars.usda.gov

"Researchers Study Value of Chicken Litter in Cotton Production". July 23, 2010.
"Algae: A Mean, Green Cleaning Machine". USDA Agricultural Research Service. May 7, 2010.

ers.usda.gov

"Table 8—Fertilizer price indexes, 1960–2007". Diarsipkan dari versi asli tanggal 2010-03-06. Diakses tanggal 2013-12-10.

web.archive.org

Enwall, Karin (December 2005). "Activity and Composition of the Denitrifying Bacterial Community Respond Differently to Long-Term Fertilization". Applied and Environmental Microbiology. American Society for Microbiology. 71 (2): 8335–8343. doi:10.1128/AEM.71.12.8335-8343.2005. PMC 1317341 . PMID 16332820. Diarsipkan dari versi asli tanggal 2011-10-02. Diakses tanggal Feb 1, 2010.
PIMENTEL, David (July 2005). "Environmental, Energetic, and Economic Comparisons of Organic and Conventional Farming Systems". BioScience. hlm. ol. 55, No. 7, Pages 573–582. Diarsipkan dari versi asli tanggal 2012-12-05. Diakses tanggal February 2, 2010.
Zublena, J.P. (1991). "SoilFacts - Nutrient Content of Fertilizer and Organic Materials". North Carolina Cooperative Extension Service. Diarsipkan dari versi asli tanggal 2013-12-12. Diakses tanggal 3 January 2013.
Lemunier, Mélanie (October 2005). "Long-Term Survival of Pathogenic and Sanitation Indicator Bacteria in Experimental Biowaste Composts". Applied and Environmental Microbiology. 71 (10): 5779–5786. doi:10.1128/AEM.71.10.5779-5786.2005. Diarsipkan dari versi asli tanggal 2013-11-19. Diakses tanggal 2 January 2013.
"Acta Horticulturae". Actahort.org. Diarsipkan dari versi asli tanggal 2013-10-24. Diakses tanggal 2010-08-25.
"Human urine conversion to struvite". Irishtimes.com. 2010-06-06. Diarsipkan dari versi asli tanggal 2012-10-24. Diakses tanggal 2012-06-17.
"CalOrganic Farms News". Calorganicfarms.com. Diarsipkan dari versi asli tanggal 2011-05-04. Diakses tanggal 2010-08-25.
"Phosphorus Fertilizers for Organic Farming Systems". CO State Extension. Diarsipkan dari versi asli tanggal 2013-11-10. Diakses tanggal 2013-12-10.
"Maintaining Soil Fertility in an Organic Fruit and Vegetable Crops System". University of MN Extension. Diarsipkan dari versi asli tanggal 2013-11-10. Diakses tanggal 2013-12-10.
"Organic Materials as *Nitrogen Fertilizers". CO State Extension. Diarsipkan dari versi asli tanggal 2013-11-10. Diakses tanggal 2013-12-10.
"Potash KCl fertilizer production" (PDF). Diarsipkan dari versi asli (PDF) tanggal 2012-12-02. Diakses tanggal 2013-12-10.
J. B. Sartain, University of Florida ((c)2011), "Food for turf: Slow-release nitrogen", Grounds Maintenance, diarsipkan dari versi asli tanggal 2019-10-29, diakses tanggal 2013-09-16
George Rehm, Michael Schmitt, John Lamb, Gyes Randall, and Lowell Busman (Reviewed 2010). "Understanding Phosphorus Fertilizers". University of Minnesota Extension Service. Diarsipkan dari versi asli tanggal 2013-09-05. Diakses tanggal 2013-09-16.
Animal Manure As a Plant Nutrient Resource, Bulletin ID-101 (Reviewed 02/05/01), Cooperative Extension Service, Purdue University. West Lafayette, IN 47907 [2] Diarsipkan 2012-03-12 di Wayback Machine.
Defra. "Nitrates and watercourses". Diarsipkan dari versi asli tanggal 2013-03-13. Diakses tanggal 2013-12-10.
Defra. "Catchment-Sensitive Farming". Diarsipkan dari versi asli tanggal 2011-06-30. Diakses tanggal 2013-12-10.
C. J. Rosen and B. P. Horgan (2009-01-09). "Preventing Pollution Problems from Lawn and Garden Fertilizers". Extension.umn.edu. Diarsipkan dari versi asli tanggal 2010-10-07. Diakses tanggal 2010-08-25.
"NOFA Interstate Council: The Natural Farmer. Ecologically Sound Nitrogen Management. Mark Schonbeck". Nofa.org. 2004-02-25. Diarsipkan dari versi asli tanggal 2004-03-24. Diakses tanggal 2010-08-25.
Lynda Knobeloch, Barbara Salna, Adam Hogan, Jeffrey Postle, and Henry Anderson. "Blue Babies and Nitrate-Contaminated Well Water". Ehponline.org. Diarsipkan dari versi asli tanggal 2009-05-15. Diakses tanggal 2010-08-25.
Moore, Geoff (2001). Soilguide - A handbook for understanding and managing agricultural soils (PDF). Perth, Western Australia: Agriculture Western Australia. hlm. 161–207. ISBN 0 7307 0057 7. Diarsipkan dari versi asli (PDF) tanggal 2018-03-27. Diakses tanggal 2013-12-10.
"Nitrogen Fertilization: General Information". Hubcap.clemson.edu. Diarsipkan dari versi asli tanggal 2012-06-29. Diakses tanggal 2012-06-17.
"Understanding Salt index of fertilizers" (PDF). Diarsipkan dari versi asli (PDF) tanggal 2013-05-28. Diakses tanggal 2012-07-22.
"IFA – Statistics – Fertilizer Indicators – Details – Raw material reserves, (2002–10)". Diarsipkan dari versi asli tanggal 2008-04-24. Diakses tanggal 2013-12-10.
"Table 8—Fertilizer price indexes, 1960–2007". Diarsipkan dari versi asli tanggal 2010-03-06. Diakses tanggal 2013-12-10.
"Salinan arsip". Diarsipkan dari versi asli tanggal 2010-06-18. Diakses tanggal 2013-12-10.
"Human alteration of the nitrogen cycle, threats, benefits and opportunities" Diarsipkan 2009-01-14 di Wayback Machine. UNESCO – SCOPE Policy briefs, April 2007
Alvi Yani (2009). "Detoksifikasi Biologis Berbagai Mikotoksin pada Bahan Pangan". Balai Pengkajian Teknologi Pertanian Lampung. Diarsipkan dari versi asli tanggal 2014-01-18.
(Inggris) J. W. Bennett, M. Klich (2003). "Mycotoxins". Clinical Microbiology Reviews. 16 (3): 497–516. doi:10.1128/CMR.16.3.497–516.2003 Periksa nilai |doi= (bantuan). Diarsipkan dari versi asli tanggal 2010-07-06.
"Prospects improve for food energy labelling using SI units". Metric Views. UK Metric Association. 24 February 2012. Diarsipkan dari versi asli tanggal 2020-10-03. Diakses tanggal 17 April 2013.

wisc.edu

soils.wisc.edu

"Understanding Salt index of fertilizers" (PDF). Diarsipkan dari versi asli (PDF) tanggal 2013-05-28. Diakses tanggal 2012-07-22.