Chloride Crop Nutrition
Essential nutrient for plant growth. Testing for deficiencies and effects on plant growth. Effect on plant diseases. |
Department of Soil Management and Soil Fertility
Information regarding the many aspects of chemical soil fertility. |
Effects of Organic and Inorganic Fertilizers on Soil Fertility and Crop Quality
Describes the results of a long-term field experiment in Sweden. By Artur Granstedt and Lars Kjellenberg. |
Efficient Fertilizer Use Manual
Comprehensive online book about proper fertilizer uses, soil pH and soil sampling. |
European Fertilizer Manufacturers Association
Contains details about plant nutrient requirements, recommendations for fertilizer use and best agricultural practices for fertilizer application. |
European Network for Field Vegetable Crops
Environmental problems associated with the nitrogen fertilization of field grown vegetables. |
Fertile Minds
A program by PotashCorp to address misconceptions about fertilizers and the role of the fertilizer industry. Detailed description of fertilzer use and production. Many downloads and a quiz. |
Fertiliser Deficiencies
Papers describing deficiency symptom in crops and field vegetables. |
Fertiliser Manufacturers Research Association
Aims to promote and encourage responsible fertilizer use. Contains many fertilizer fact sheets. |
Fertilizer Advisory Development and Information Network for Asia and the Pacific
Information on fertilizer use, production and consumption. |
Fertilizer and Lime
An overview of various long-term and short-term P and K trials with corn and soybean. |
Fertilizer and Lime Research Center, New Zealand
Agricultural use and the environmental impact of fertilizer, lime and soil amendments. |
Fertilizer Industry Federation of Australia
Provides publications and educational material. |
Fertilizer Use and Crop Production
This site has information on soil testing, fertilizer recommendations, micronutrients, plant tissue analysis, organic soils, calculation of fertilizer rates and manure. |
Fertilizers, Soil fertility, Plant Nutrition
Information on all aspects of soil fertility and fertilizers. |
Field Museum
Educational site for students and teachers about soil and soil biology. |
Foliar Fertilizer
Introduction to the sources of, and the uses of foliar fertilizer. |
Food and Fertilizer Technology Centre
Technical information and practical experiences about agricultural food production and the use of fertilizers. |
Getting Back to Basics
Crop information for all US regions and information on soil fertility and fertilizer application. |
How to Apply Fertilizer to Wheat
Application time, forms of fertilizer and methods of application to be considered when applying fertilizer to wheat. |
International Fertilizer Development Center
Production and agronomic effectiveness of fertilizers. |
International Fertilizer Industry Association
Describes the production, distribution and consumption of fertilizers, their intermediates and raw materials |
Introduction to Soils
Lectures about soil surveys, soil texture, soil acidity and soil fertility. Information about liming, fertilization and soil testing with particular reference to forestry. |
Introductory Soil Science
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. |
Iron Chlorosis
Explains how to detect and combat iron deficiency in plants. |
Manures and Fertilizers
Indian Agricultural Resources. Information about manures, organic, inorganic and biofertilizers. |
Micronutrient Disorders, HYG-1252-98
On the deficiencies that may occur in soilless floriculture, and how these can be remedied. |
Nitrogen fertilizer materials for field crops
The role of nitrogen in soil and plants. Explains the nitrogen content and form in common fertilizers. |
NPK Plant Nutrient Models
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. |
Nutrient management of field crops
A good introduction into the basics of fertilization and soil analysis. It describes the soil and plant processes, macro- and micronutirents and different fertilizer types and their use. Explains the basics of soil sampling and analysis. |
PEERS Lessons about soil
Educational site about soil analysis giving general information about pH, organics, color and other important soil fertility criteria. |
Phosphorus and potassium
Describes the phosphorus (P)and potassium (K) soil testing and fertilizer recommendation system in Ontario, Canada. |
Phosphorus fertilizers
Describes the effective use of this fertilizer. Soil availability, fertilizer characteristics and application. |
Plant Nutrition and Soil Fertility Laboratory
Institute of the University in Denmark. Features publications and research reports. |
Potassium In Agriculture
The influence of potassium on plant nutrition and soil. |
Potentially beneficial effects from liming
A university lecture describing the physical and chemical effects of liming on different soil types. |
Preplant Soil Nitrate Tests
Description of tests that allow farmers to adjust nitrogen applications to meet the needs of each specific field. |
Rebuilding Lost Soil Fertility
Measures to improve soils suited to farmers in the third world. |
Recommended soil testing procedures
Describes important soil tests and explains how to perform and interpret them. |
Secondary and Micronutrients for Vegetables and Field Plants
A series of reports describing the effects of various micronutrients on the growth and health of plants. Pictures of plants with deficiency symptoms. |
Soil acidity and liming
A factsheet describing the negative effects of soil pH and how to counter them. |
Soil Characterization
Simple step by step guide to soil sampling and analysis with explanatory images. |
Soil Conservation and Fertility Management
A detailed description from the International Centre for Integrate Mountain Development. Its main focus is on mountain soils and sloped agriculture in th Hindu-Kish region. |
Soil Fertility
Application recommendations for different fertilizers. |
Soil Fertility
Answers questions related to the enhancement and maintenance of soil fertility. |
Soil Fertility & Crop Nutrition
A list of factsheet, infosheets and publications available for download or for ordering. These give details about fertilization of different crops, soil management and soil improvement. |
Soil Fertility for Forage Crops
Gives detailed description of the soil and fertilizer requirements of forage crops during establishment and maintenance. University of Pennsylvania. |
Soil Fertility Guide
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. |
Soil Fertility Guide
Common fertilizers and their characteristics. |
Soil Fertility Implications
Describes the different fertilization requirements for direct seeding. |
Soil Fertility Management
Frequently asked questions about soil fertility, the application of animal wastes, organic and chemical fertilizers. Also features an online discussion forum. |
Soil Fertility Research
Information about university research. |
Soil Fertilizers
Information with regard to soil pH, fertilizers and lime application. |
Soil Quality Institute
Research findings and practical technologies that help conserve and improve soil conditions. Applicable to farming, ranching, forestry and gardening. |
Soil test interpretations
Gives examples of soil test values and explains their significance. |
Soils and Soil Management
Offers a database and search function of a range of articles about fertilizers, micronutrients and fertilizer application. |
Soybean Soil Fertility
Information and discussion on nutrient uptake and yield response to P and K. Recommendations for P and K and some examples of yield response to these nutrients. |
Sugar Cane Production and Soil Fertility.
Information on the relationship between the quality of sugarcane and soil fertility. |
Technical Information
A detailed description of the influence of soil cation exchange capacity, soil pH, base saturation and alkalinity. |
The acidity of forest soils
A student paper describing soil conditions in forests. Particularly what causes the pH to change and what influences this will have on the ecosystem. |
The International Fertiliser Society
Scientific, technical, environmental, economic and safety aspects of the production, marketing, use and application of fertilizers. |
Understand your soil test: Sulfur
Background information on the role of sulphur in soil fertility, sulphur containing fertilizers and explanation of the results of a soil test. |
What is Soil Fertility
Information about soil fertility and how it can be improved. |
