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 asli (PDF) tanggal 2018-03-27. Diakses tanggal 2013-12-10.

alodokter.com (Global: low place; Indonesian: 676^th place)

https://www.alodokter.com/hiperkalemia

annualreviews.org (Global: 3,867^th place; Indonesian: 2,618^th place)

arjournals.annualreviews.org

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

archive.org (Global: 6^th place; Indonesian: 2^nd place)

Lawrence, Felicity (2004). "214". Dalam Kate Barker (ed.). 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 (Global: 1,592^nd place; Indonesian: 1,124^th place)

ag.arizona.edu

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

asm.org (Global: 3,555^th place; Indonesian: 822^nd place)

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 asli tanggal 2013-11-19. Diakses tanggal 2 January 2013. ; Pemeliharaan CS1: Tanggal dan tahun (link)

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. Diarsipkan dari asli tanggal 2010-07-06. ; ;

books.google.com (Global: 3^rd place; Indonesian: 6^th place)

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

calorganicfarms.com (Global: low place; Indonesian: low place)

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

chemicalland21.com (Global: low place; Indonesian: 9,022^nd place)

NPK (Fertilizer)

clemson.edu (Global: 5,952^nd place; Indonesian: 6,069^th place)

hubcap.clemson.edu

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

colostate.edu (Global: 3,616^th place; Indonesian: 1,397^th place)

ext.colostate.edu

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

defra.gov.uk (Global: 7,481^st place; Indonesian: low place)

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

deptan.go.id (Global: low place; Indonesian: 523^rd place)

lampung.litbang.deptan.go.id

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

detik.com (Global: 586^th place; Indonesian: 5^th place)

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 (Global: 1,299^th place; Indonesian: 2,609^th place)

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 (Global: 2^nd place; Indonesian: 4^th place)

doi.org

Enwall, Karin (December 2005). "Activity and Composition of the Denitrifying Bacterial Community Respond Differently to Long-Term Fertilization". Applied and Environmental Microbiology. 71 (2). American Society for Microbiology: 8335–8343. doi:10.1128/AEM.71.12.8335-8343.2005. PMC 1317341. PMID 16332820. Diarsipkan dari 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. 40 (9). Soil Biology and Biochemistry: 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. 304 (5677). Science (journal): 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. 296 (5573). Science: 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 asli tanggal 2013-11-19. Diakses tanggal 2 January 2013. ; Pemeliharaan CS1: Tanggal dan tahun (link)
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. 157 (3). Blackwell Publishing: 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. Pemeliharaan CS1: Banyak nama: authors list (link)
(Inggris) J. W. Bennett, M. Klich (2003). "Mycotoxins". Clinical Microbiology Reviews. 16 (3): 497–516. doi:10.1128/CMR.16.3.497–516.2003. Diarsipkan dari 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 (Global: low place; Indonesian: low place)

"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 (Global: 254^th place; Indonesian: 227^th place)

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

ehponline.org (Global: low place; Indonesian: low place)

Lynda Knobeloch, Barbara Salna, Adam Hogan, Jeffrey Postle, and Henry Anderson. "Blue Babies and Nitrate-Contaminated Well Water". Ehponline.org. Diarsipkan dari asli tanggal 2009-05-15. Diakses tanggal 2010-08-25. Pemeliharaan CS1: Banyak nama: authors list (link)

epa.gov (Global: 882^nd place; Indonesian: 724^th place)

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 (Global: 68^th place; Indonesian: 182^nd place)

ec.europa.eu

European Union. "Nitrates Directive".

fertilizer.org (Global: low place; Indonesian: low place)

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

grounds-mag.com (Global: low place; Indonesian: low place)

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

harrodhorticultural.com (Global: low place; Indonesian: low place)

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

harvard.edu (Global: 18^th place; Indonesian: 44^th place)

ui.adsabs.harvard.edu

Lal, R. (2004). "Soil Carbon Sequestration Impacts on Global Climate Change and Food Security". Science. 304 (5677). Science (journal): 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. 296 (5573). Science: 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. Pemeliharaan CS1: Banyak nama: authors list (link)

highwire.org (Global: low place; Indonesian: low place)

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. 71 (2). American Society for Microbiology: 8335–8343. doi:10.1128/AEM.71.12.8335-8343.2005. PMC 1317341. PMID 16332820. Diarsipkan dari asli tanggal 2011-10-02. Diakses tanggal Feb 1, 2010. ;

iastate.edu (Global: 2,548^th place; Indonesian: 877^th place)

ipm.iastate.edu

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

improve-your-garden-soil.com (Global: low place; Indonesian: low place)

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

indoplaces.com (Global: low place; Indonesian: 2,482^nd place)

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

ingentaconnect.com (Global: 3,306^th place; Indonesian: 3,759^th place)

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 (Global: low place; Indonesian: low place)

"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 (Global: 1,725^th place; Indonesian: 1,172^nd place)

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. Pemeliharaan CS1: Lokasi (link)^{[pranala nonaktif permanen]}

ipni.net (Global: low place; Indonesian: low place)

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

irishtimes.com (Global: 266^th place; Indonesian: 967^th place)

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

jstor.org (Global: 26^th place; Indonesian: 53^rd place)

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

merck.com (Global: 6,464^th place; Indonesian: 9,144^th place)

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

metricviews.org.uk (Global: low place; Indonesian: low place)

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

msuorganicfarm.com (Global: low place; Indonesian: low place)

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

nature.com (Global: 234^th place; Indonesian: 238^th place)

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. Pemeliharaan CS1: Banyak nama: authors list (link)
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 (Global: 2,542^nd place; Indonesian: 2,547^th place)

soil.ncsu.edu

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

nih.gov (Global: 4^th place; Indonesian: 13^th place)

pubmed.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. 71 (2). American Society for Microbiology: 8335–8343. doi:10.1128/AEM.71.12.8335-8343.2005. PMC 1317341. PMID 16332820. Diarsipkan dari 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. 304 (5677). Science (journal): 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. 296 (5573). Science: 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. Pemeliharaan CS1: Banyak nama: authors list (link)

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. 71 (2). American Society for Microbiology: 8335–8343. doi:10.1128/AEM.71.12.8335-8343.2005. PMC 1317341. PMID 16332820. Diarsipkan dari asli tanggal 2011-10-02. Diakses tanggal Feb 1, 2010. ;

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 (Global: low place; Indonesian: low place)

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

nytimes.com (Global: 7^th place; Indonesian: 35^th place)

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

permaculture.org.au (Global: low place; Indonesian: low place)

NPK ratios of common organic materials

pertanian.go.id (Global: low place; Indonesian: 285^th place)

cybex.pertanian.go.id

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

petronet.ir (Global: low place; Indonesian: low place)

(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 (Global: low place; Indonesian: 7,230^th place)

(Indonesia) Kepemilikan saham PT Pupuk Indonesia

pupuk-kujang.co.id (Global: low place; Indonesian: low place)

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

purdue.edu (Global: 850^th place; Indonesian: 548^th place)

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 (Global: low place; Indonesian: 2,220^th place)

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

sciencedirect.com (Global: 149^th place; Indonesian: 229^th place)

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. 40 (9). Soil Biology and Biochemistry: 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 (Global: 857^th place; Indonesian: 574^th place)

Lal, R. (2004). "Soil Carbon Sequestration Impacts on Global Climate Change and Food Security". Science. 304 (5677). Science (journal): 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. 296 (5573). Science: 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 (Global: low place; Indonesian: low place)

soil.scijournals.org

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

scribd.com (Global: 482^nd place; Indonesian: 171^st place)

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

soils.org (Global: low place; Indonesian: low place)

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

theecologist.org (Global: low place; Indonesian: low place)

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

theglobaleducationproject.org (Global: low place; Indonesian: low place)

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

ucdavis.edu (Global: 1,873^rd place; Indonesian: 2,118^th place)

ipm.ucdavis.edu

"Healthy LawnsFertilizers vs. soil amendments". Ipm.ucdavis.edu. Diakses tanggal 2010-08-25.

ucpress.net (Global: low place; Indonesian: low place)

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 asli tanggal 2012-12-05. Diakses tanggal February 2, 2010. ;

umn.edu (Global: 1,266^th place; Indonesian: 1,369^th place)

extension.umn.edu

"Maintaining Soil Fertility in an Organic Fruit and Vegetable Crops System". University of MN Extension. Diarsipkan dari 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 asli tanggal 2013-09-05. Diakses tanggal 2013-09-16. ; Pemeliharaan CS1: Banyak nama: authors list (link)
C. J. Rosen and B. P. Horgan (2009-01-09). "Preventing Pollution Problems from Lawn and Garden Fertilizers". Extension.umn.edu. Diarsipkan dari asli tanggal 2010-10-07. Diakses tanggal 2010-08-25.

usda.gov (Global: 438^th place; Indonesian: 284^th place)

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 asli tanggal 2010-03-06. Diakses tanggal 2013-12-10.

web.archive.org (Global: 1^st place; Indonesian: 1^st place)

Enwall, Karin (December 2005). "Activity and Composition of the Denitrifying Bacterial Community Respond Differently to Long-Term Fertilization". Applied and Environmental Microbiology. 71 (2). American Society for Microbiology: 8335–8343. doi:10.1128/AEM.71.12.8335-8343.2005. PMC 1317341. PMID 16332820. Diarsipkan dari 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 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 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 asli tanggal 2013-11-19. Diakses tanggal 2 January 2013. ; Pemeliharaan CS1: Tanggal dan tahun (link)
"Acta Horticulturae". Actahort.org. Diarsipkan dari asli tanggal 2013-10-24. Diakses tanggal 2010-08-25.
"Human urine conversion to struvite". Irishtimes.com. 2010-06-06. Diarsipkan dari asli tanggal 2012-10-24. Diakses tanggal 2012-06-17.
"CalOrganic Farms News". Calorganicfarms.com. Diarsipkan dari asli tanggal 2011-05-04. Diakses tanggal 2010-08-25.
"Phosphorus Fertilizers for Organic Farming Systems". CO State Extension. Diarsipkan dari 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 asli tanggal 2013-11-10. Diakses tanggal 2013-12-10.
"Organic Materials as *Nitrogen Fertilizers". CO State Extension. Diarsipkan dari asli tanggal 2013-11-10. Diakses tanggal 2013-12-10.
"Potash KCl fertilizer production" (PDF). Diarsipkan dari 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 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 asli tanggal 2013-09-05. Diakses tanggal 2013-09-16. ; Pemeliharaan CS1: Banyak nama: authors list (link)
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 asli tanggal 2013-03-13. Diakses tanggal 2013-12-10.
Defra. "Catchment-Sensitive Farming". Diarsipkan dari 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 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 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 asli tanggal 2009-05-15. Diakses tanggal 2010-08-25. Pemeliharaan CS1: Banyak nama: authors list (link)
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 asli (PDF) tanggal 2018-03-27. Diakses tanggal 2013-12-10.
"Nitrogen Fertilization: General Information". Hubcap.clemson.edu. Diarsipkan dari asli tanggal 2012-06-29. Diakses tanggal 2012-06-17.
"Understanding Salt index of fertilizers" (PDF). Diarsipkan dari asli (PDF) tanggal 2013-05-28. Diakses tanggal 2012-07-22.
"IFA – Statistics – Fertilizer Indicators – Details – Raw material reserves, (2002–10)". Diarsipkan dari asli tanggal 2008-04-24. Diakses tanggal 2013-12-10.
"Table 8—Fertilizer price indexes, 1960–2007". Diarsipkan dari asli tanggal 2010-03-06. Diakses tanggal 2013-12-10.
"Salinan arsip". Diarsipkan dari 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 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. Diarsipkan dari asli tanggal 2010-07-06. ; ;
"Prospects improve for food energy labelling using SI units". Metric Views. UK Metric Association. 24 February 2012. Diarsipkan dari asli tanggal 2020-10-03. Diakses tanggal 17 April 2013.

wisc.edu (Global: 1,045^th place; Indonesian: 957^th place)

soils.wisc.edu

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

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doi.org (Global: 2^nd place; Indonesian: 4^th place)

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sciencedirect.com (Global: 149^th place; Indonesian: 229^th place)

sciencemag.org (Global: 857^th place; Indonesian: 574^th place)

scribd.com (Global: 482^nd place; Indonesian: 171^st place)

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