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Soil Fertility and Fertilizers

Science > Agriculture > Soils > Soil Fertility and Fertilizers

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	Soil Quality Institute (SQI) - http://soils.usda.gov/sqi/ Research findings and practical technologies that help conserve and improve soil conditions. Applicable to farming, ranching, forestry and gardening.
	Soil Fertility Research - http://www.wye.ic.ac.uk/sme/projects/soil/index.html Information about university research with extensive list of publications.
	Soils - http://soils.usda.gov/technical/ This site from the Manitoba Agriculture, Food and Rural Initiatives offers advice and information about the management and fertility of soil. Includes erosion, salinity and soil surveys.
	Field Museum - http://www.fieldmuseum.org/undergroundadventure/ Educational site for students and teachers about soil and soil biology.
	International Fertilizer Development Center - http://www.ifdc.org/ Production and agronomic effectiveness of fertilizers.

	Soil Fertility Management - http://web.aces.uiuc.edu/faq/faq.pdl?project_id=16 Frequently asked questions about soil fertility, the application of animal wastes, organic and chemical fertilizers. Also features an online discussion forum.
	International Fertilizer Industry Association - http://www.fertilizer.org/ Describes the production, distribution and consumption of fertilizers, their intermediates and raw materials
	Guidelines for Choosing a Soil-Testing Laboratory - http://ohioline.osu.edu/hyg-fact/1000/1133.html Provides guidance for growers in evaluating a laboratory before supplying soil samples to determine concentrations of plant-available nutrients.
	Soil Quality Test Kit - http://ohioline.osu.edu/sag-fact/pdf/Soil_Quality_Test_Kit.pdf Information on a kit developed in conjunction with Ohio State University for testing soil for active organic matter as a measure of quality.
	Soil Testing is an Excellent Investment for Garden Plants and Commercial Crops - http://ohioline.osu.edu/hyg-fact/1000/1132.html Soil testing is an inexpensive way of maintaining good plant health and maximum crop productivity and this factsheet provides guidance on why, when and how to test soil.

	Micronutrient Disorders - http://ohioline.osu.edu/hyg-fact/1000/1252.html Provides information on specific micronutrients, how to recognize deficiences and excesses, and how to correct the situation after identifing the problem by soil and foliar analysis.
	Iron Chlorosis - http://ohioline.osu.edu/hyg-fact/1000/1009.html Explains how to detect and combat iron deficiency in plants.
	Recommended Soil Testing Procedures - http://ag.udel.edu/extension/agnr/soiltesting.htm Describes important soil tests and explains how to perform and interpret them.
	Soil Fertility - http://extension.agron.iastate.edu/soilfertility/ A large collection of information ranging from soil test interpretation to prevention of nutrient deficiencies.
	Sustainable Soil Management - http://attra.ncat.org/attra-pub/PDF/soilmgmt.pdf This publication covers basic soil properties and the necessary management steps toward building and maintaining healthy soils, with a list of further resources.

	Soil Fertility - http://www.rce.rutgers.edu/horsepastures/soil_fertility.htm Application recommendations for different fertilizers.
	Soil Fertility Guide - http://www.gov.mb.ca/agriculture/soilwater/soilfert/fbd02s00.html Soil fertility practices in Manitoba and general fertilizer use considerations. Details about fertilizers, their characteristics, application rates and usage recommendations. N-fixation, Manure and soil factors are also described.
	Potentially Beneficial Effects from Liming - http://pubpages.unh.edu/~harter/mclean.htm Abstract from a university lecture describing the physical and chemical effects of liming on different soil types.
	The International Fertiliser Society - http://www.fertiliser-society.org/ Scientific, technical, environmental, economic and safety aspects of the production, marketing, use and application of fertilizers.
	European Network for Field Vegetable Crops - http://www.hri.ac.uk/enveg/ Environmental problems associated with the nitrogen fertilization of field grown vegetables.

	Introductory Soil Science - http://www.soils.umn.edu/academics/classes/soil2125/doc/labunts.htm Lectures and Laboratory Units of the Soil Sciences Courses at the University of Minnesota. Influences on soil fertility are explained and simple soil tests are described.
	Fertiliser Manufacturers Research Association - http://www.fertresearch.org.nz/ Aims to promote and encourage responsible fertilizer use. Contains many fertilizer fact sheets.
	Fertilizer Industry Federation of Australia - http://www.fifa.asn.au/default.asp?V_DOC_ID=839 Provides publications and educational material.
	Fertile Minds - http://www.fertile-minds.org/ A program by PotashCorp to address misconceptions about fertilizers and the role of the fertilizer industry. Detailed description of fertilizer use and production. Many downloads and a quiz.
	Soil Fertility Guide - http://www.gov.mb.ca/agriculture/soilwater/soilfert/fbd02s10.html Common fertilizers and their characteristics.

	Soils and Soil Management - http://web1.msue.msu.edu/msue/imp/modf1/masterf1.html Offers a database and search function of a range of articles about fertilizers, micronutrients and fertilizer application.
	Soil Nutrient Management - http://www.iger.bbsrc.ac.uk/Business/SoilNutrientManagement.htm Outlines research being undertaken at the Institute of Grassland and Environmental Research into the precision management of fertilisers to lower input costs and reduce pollution of water and atmosphere.
	Manure Nutrient Management - http://www.iger.bbsrc.ac.uk/Business/ManureNutrientManagement.htm Outlines work being undertaken at the Institute of Grassland and Environmental Research into developing management solutions which maximise use of nutrients by forage and crops and minimise pollution of atmosphere and waters.
	Potassium In Agriculture - http://www.potash-info.com/home.htm The influence of potassium on plant nutrition and soil.
	Preplant Soil Nitrate Tests - http://www.cias.wisc.edu/wicst/pubs/ppnt.htm Description of tests that allow farmers to adjust nitrogen applications to meet the needs of each specific field.

	Kieserite - http://www.kieserite.com/ Magnesium/sulphur deficiency symptoms are widespread due to inappropriate nutrient management. This website offers not only details about the origin, properties and production of Kieserite, but also a wide range of information concerning its importance and possibilities of use in agriculture.
	Fertiliser Deficiencies - http://www.msue.msu.edu/msue/imp/modf1/modf1d.html Papers describing deficiency symptom in crops and field vegetables.
	Secondary and Micronutrients for Vegetables and Field Plants - http://www.msue.msu.edu/msue/imp/modf1/modf1t.html A series of reports describing the effects of various micronutrients on the growth and health of plants. Pictures of plants with deficiency symptoms.
	Foliar Fertilizer - http://foliarfert.com/ Introduction to the sources of, and the uses of foliar fertilizer.
	Fertilizer and Lime Research Center, New Zealand - http://www.massey.ac.nz/~flrc/ Agricultural use and the environmental impact of fertilizer, lime and soil amendments.

	Introduction to Soils - http://syllabus.syr.edu/esf/rdbriggs/for345/syllabus.htm Lectures about soil surveys, soil texture, soil acidity and soil fertility. Information about liming, fertilization and soil testing with particular reference to forestry.
	Fertilizer Application and Placement - http://www1.agric.gov.ab.ca/$department/deptdocs.nsf/all/agdex621 Provides general guidance on the purchase, use and timing of nitrogenous fertilizers and on the application of phosphorus, potassium and sulphur.
	Soils, Cropping Practices and Fertilizer Use - http://www1.agric.gov.ab.ca/$department/deptdocs.nsf/all/agdex3896 Describes the fertilizer requirements of different soil types, with particular reference to Alberta.
	Manures and Fertilizers - http://www.indiaagronet.com/indiaagronet/Manuers_fertilizers/Manure_Fert.htm Indian Agricultural Resources. Information about manures, organic, inorganic and biofertilizers.
	Soil Fertility - http://www.seafriends.org.nz/enviro/soil/fertile.htm Answers questions related to the enhancement and maintenance of soil fertility.

	Nutrient Value of Slurry and Dirty Water - http://www.ddc-wales.co.uk/client_files/dirty_water1.pdf Factsheet in Welsh and English from the Dairy Development Centre on calculating the nutrient value and maximizing the nitrogen availability of these products.
	Soil Fertilizers - http://www.ncw.wsu.edu/lime.htm Information with regard to soil pH, fertilizers and lime application.
	Soil test interpretations - http://www.cahe.nmsu.edu/pubs/_a/a-122.html Gives examples of soil test values and explains their significance.
	NPK Plant Nutrient Models - http://www.qpais.co.uk/npk/infoindx.htm Online programs that simulate the response of crops to fertilization, crop residue incorporation and consider the effects of time, soil type, cultural practice and weather. Downloads available for researchers.
	Chloride Crop Nutrition - http://www.ppi-far.org/chloride/index.html Essential nutrient for plant growth. Testing for deficiencies and effects on plant growth. Effect on plant diseases.

	What is Soil Fertility? - http://www.dnagardens.com/Articles/What%20is%20soil%20fertility.htm Information about soil fertility and how it can be improved.
	Getting Back to Basics - http://www.back-to-basics.net Crop information for all US regions and information on soil fertility and fertilizer application.
	Fertilizers, Soil fertility, Plant Nutrition - http://www.agnet.org/library/soilfert/ Information on all aspects of soil fertility and fertilizers.
	The Phosphorus and Potassium Soil Testing and Fertilizer Recommendation System in Ontario - http://www.omafra.gov.on.ca/english/crops/facts/97-005.htm Ontario has developed a soil testing service with a strong scientific basis which relies on the correct method of extraction of available nutrients and accurate forecasting of the response of crops to the resulting fertilizer application.
	Efficient Fertilizer Use Manual - http://www.back-to-basics.net/efu/efu.html An online book about proper fertilizer uses, soil pH and soil sampling.

	European Fertilizer Manufacturers Association - http://www.efma.org/ Contains details about plant nutrient requirements, recommendations for fertilizer use and best agricultural practices for fertilizer application.
	Soil Fertility and Crop Nutrition - http://www.omafra.gov.on.ca/english/crops/soils/fertility.html The Ontario Ministry of Agriculture, Food and Rural Affairs offers a large collection of newsletters and factsheets with topics ranging from soil sampling to fertilizer requierements and micronutrients.
	Plant Nutrition and Soil Fertility Laboratory - http://www.agsci.kvl.dk/planteer/indexuk.htm Institute of the University in Denmark. Features publications and research reports.
	Soil Fertility Establishment - http://www.cas.psu.edu/docs/casdept/agronomy/forage/docs/fertility/fertilityBdoc.html Soil fertility management for forage crops. A introduction from the Penn State University's Agronomy Department.
	Effects of Organic and Inorganic Fertilizers on Soil Fertility and Crop Quality - http://www.jdb.se/sbfi/publ/boston/boston7.html Describes the results of a long-term field experiment in Sweden. By Artur Granstedt and Lars Kjellenberg.

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