Soil Fertility and Fertilizers Soils Agriculture

It relates sites dealing with Soil Fertility, Plant Nutrition, Fertilizers and Fertilization of agricultural soils.

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• Soil Fertility Establishment - Soil fertility management for forage crops. A introduction from the Penn State University's Agronomy Department.
  
• Soil Health and Fertility - Provides a number of downloadable publications on various aspects of soil management, provided by the NSW Department of Primary Industries.
  
• Potentially Beneficial Effects from Liming - Abstract from a university lecture describing the physical and chemical effects of liming on different soil types.
  
• Kieserite - 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 an
  
• Soil Fertility - A large collection of information ranging from soil test interpretation to prevention of nutrient deficiencies.
  
• 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.
  
• Manures and Fertilizers - Indian Agricultural Resources. Information about manures, organic, inorganic and biofertilizers.
  
• Soil Quality Institute (SQI) - Research findings and practical technologies that help conserve and improve soil conditions. Applicable to farming, ranching, forestry and gardening.
  
• Fertilizer and Lime Research Center, New Zealand - Agricultural use and the environmental impact of fertilizer, lime and soil amendments.
  
• Efficient Fertilizer Use Manual - An online book about proper fertilizer uses, soil pH and soil sampling.
  
• European Network for Field Vegetable Crops - Environmental problems associated with the nitrogen fertilization of field grown vegetables.
  
• Field Museum - Educational site for students and teachers about soil and soil biology.
  
• Guidelines for Choosing a Soil-Testing Laboratory - Provides guidance for growers in evaluating a laboratory before supplying soil samples to determine concentrations of plant-available nutrients.
  
• Micronutrient Disorders - 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.
  
• Best Management Practices: A Manure Nutrient Management Program - Article describes methods of applying the natural fertilizer, while avoiding pollution. From the Ohio State University Extension - Department of Horticulture and Crop Science.
  
• Nutrient Value of Slurry and Dirty Water - Factsheet in Welsh and English from the Dairy Development Centre on calculating the nutrient value and maximizing the nitrogen availability of these products. [PDF]
  
• Soil Fertility Guide - Outlines the factors affecting plant growth, soil and climate, soil surveys and classification, soil management and plant nutritional requirements. Provided by the Government of Newfoundland and Labrador. [PDF]
  
• Fertilizer Industry Federation of Australia - Provides publications and educational material.
  
• Recommended Soil Testing Procedures - Describes important soil tests and explains how to perform and interpret them.
  
• Soil Testing is an Excellent Investment for Garden Plants and Commercial Crops - 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.
  
• Fertilizer Application and Placement - Provides general guidance on the purchase, use and timing of nitrogenous fertilizers and on the application of phosphorus, potassium and sulphur.
  
• Fertiliser Deficiencies - Papers describing deficiency symptom in crops and field vegetables.
  
• Soil Fertility and Crop Nutrition - 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.
  
• Sustainable Soil Management - This publication covers basic soil properties and the necessary management steps toward building and maintaining healthy soils, with a list of further resources. [PDF]
  
• European Fertilizer Manufacturers Association - Contains details about plant nutrient requirements, recommendations for fertilizer use and best agricultural practices for fertilizer application.
  
• Fertiliser Manufacturers Research Association - Aims to promote and encourage responsible fertilizer use. Contains many fertilizer fact sheets.
  
• The Phosphorus and Potassium Soil Testing and Fertilizer Recommendation System in Ontario - 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.
  
• International Fertilizer Industry Association - Describes the production, distribution and consumption of fertilizers, their intermediates and raw materials
  
• The International Fertiliser Society - Scientific, technical, environmental, economic and safety aspects of the production, marketing, use and application of fertilizers.
  
• 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.
  
• Soil Fertility Research - Information about university research with extensive list of publications.
  
• Foliar Fertilizer - Introduction to the sources of, and the uses of foliar fertilizer.
  
• Preplant Soil Nitrate Tests - Description of tests that allow farmers to adjust nitrogen applications to meet the needs of each specific field.
  
• Plant Nutrition and Soil Fertility Laboratory - Institute of the University in Denmark. Features publications and research reports.
  
• What is Soil Fertility? - Information about soil fertility and how it can be improved.
  
• 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.
  
• Soil Fertilizers - Information with regard to soil pH, fertilizers and lime application.
  
• International Fertilizer Development Center - Production and agronomic effectiveness of fertilizers.
  
• Soil Quality Test Kit - Information on a kit developed in conjunction with Ohio State University for testing soil for active organic matter as a measure of quality. [PDF]
  
• 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.
  
• Understanding Potassium and its Role in Agriculture - The influence of potassium on plant nutrition and soil. [PDF]
  
• Soil test interpretations - Gives examples of soil test values and explains their significance.
  
• Chloride Crop Nutrition - Essential nutrient for plant growth. Testing for deficiencies and effects on plant growth. Effect on plant diseases.
  
• Soils and Soil Management - Offers a database and search function of a range of articles about fertilizers, micronutrients and fertilizer application.
  
• Fertilizers, Soil fertility, Plant Nutrition - Information on all aspects of soil fertility and fertilizers.
  
• Soils, Cropping Practices and Fertilizer Use - Describes the fertilizer requirements of different soil types, with particular reference to Alberta.
  
• Iron Chlorosis - Explains how to detect and combat iron deficiency in plants.
  
• Smart! Fertilizer Management Software - Fertilizer calculator and fertilizer management tool, providing guidance on fertilizer recipes, cost analysis and fertilizer mixes.
  
• Fertile Minds - 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 Management - Frequently asked questions about soil fertility, the application of animal wastes, organic and chemical fertilizers. Also features an online discussion forum.
  
• Getting Back to Basics - Crop information for all US regions and information on soil fertility and fertilizer application.
  
• Soils - 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.
  
  

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