- Back-to-Basics: Soil Fertility Information
- Fertilizer manual showcasing basic information about fertilizers - proper uses, soil pH, soil sampling, and more.
- Effects of Organic and Inorganic Fertilizers on Soil Fertility and Crop Quality
- Details on the study done to examine nutrient parameters.
- European Fertilizer Manufacturers Association
- Includes members, staff, publications and presentations with overview of the organization.
- Fert Research
- Access to abstract of the center, research, resources, education and links.
- Fertile Minds
- Presents fertilizer fundamentals and other related information. Includes research and links.
- Fertilizer Deficiencies
- Links to documents on nutrient deficiency, denitrification, and other related topics.
- Fertilizer Industry Federation of Australia
- Organization profile, information on the fertilizer industry, conference call, and access to publications.
- International Center for Soil Fertility and Agricultural Development
- Showcases gallery of programs, training calendar, publications, related links, background of the group.
- International Fertilizer Industry Association
- Overview of the group, its activities, membership, publications, conferences and events.
- International Fertilizer Society
- Global organization for those interested in various aspects of fertilizer production, marketing, and application.
- Iowa State University Extension: Soil Fertility
- Access to information on nutrient topics, soil test lab facility, weather updates, faculty and staff roster, photo gallery, and related links.
- Iron Chlorosis
- Details on the plant condition due to iron deficiency.
- Manitoba Soil Fertility Guide
- Guidelines to local soil fertility practices and general considerations.
- Manures and Fertilizers
- Extensive information on organic and inorganic fertilizers, as well as bio-fertilizers.
- Massey University Fertilizer and Lime Research Center
- Fosters research and collaborative projects in the field of soil, plant, water and fertilizer materials.
- Micronutrient Disorders, HYG-1252-98
- Tables and information on micronutrient management.
- Natural Resources Conservation Service Soil Quality Unit
- Serves as information resource for improving soil quality. Includes assessment and management details.
- Phosphorus and Potassium
- Evaluates the nutrients soil testing and fertilizer recommendation system as new methods, hybrids and management practices are developed.
- Potash One Inc.
- Agriculture focused resource development company with current Potash permits. Well positioned to benefit from the growing global demand for biofuels.
- Potassium Info
- Contains potassium overview as well as research and its effects on various industries.
- Potentially Beneficial Effects from Liming
- Addresses the question of how responses to lime differ under tropical and temperate conditions and why they do so.
- Pre-plant Soil Nitrate Tests
- Concludes that N fertilizer is being over applied, thus the need for its reduction through prior testing methods.
- Recommended Soil Testing Procedures
- List and information on different recommended procedures.
- Secondary and Micronutrients for Vegetables and Field Plants
- Links to soil testing procedure and information on toxicities of selected micronutrients.
- Soil Fertility
- Document gives details on how to produce crops more while damaging the soil less.
- Soil Fertility and Crop Nutrition
- Presents links to fact sheets, info sheets, and publications covering soil fertility related topics.
- Soil Fertility Management
- List of links to FAQs in relation to soybean cultivation soil management.
- Soil Test Interpretations
- Provides descriptions and tables for accurate soil test interpretations.
- Some Thoughts About Soil pH, Fertilizers and Lime
- Details and tips on soil chemistry.
- Sugar Cane Production and Soil Fertility
- Experiment aims to determine the effect of leaving dead leaves on the soil surface on sugar cane production and soil fertility.
- SUNJ Rutgers Extension: Soil Fertility
- Details on the recommended ratios of nitrogen, phosphorous, and potassium.
- University of Copenhagen Department of Agricultural Sciences
- Information about the department, its research, teachings, and resources.
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