Extensive collection of on-line information on soil survey activities, institutions, datasets, research, and teaching materials world-wide.

A categorised list of FAQ's about soil and plant testing. From Clemson University, South Carolina.

This page describes a number of plant-related software tools.

Conference (September 4 - 12, 2004) for soil scientists and practitioners from all to discuss the part played by soils in terrestrial ecosystems. Information about conference aims, details of program, excursions and symposia. Details on fees, accommodation and organization.

A development system for nitrogen turnover models to simulate the N cycle in arable agriculture. The system consists of modular model components for soil water flow, for soil heat and N transport and for crop growth. Available for download.

Publications, general information and description of activities being undertaken in Canada to study and reduce soil degradation.

Formerly known as Rothamsted Experimental Station; the main site of the Institute of Arable Crops Research. Resources, details of research, and information for the lay public.

Research on physico-chemistry and biology of agricultural soils, metabolism and nutrition of crops, management of agricultural soils and nutrient balance. Braunschweig, Germany.

This is the World Data Center for Soils. Responsible for collecting, archiving, and distributing data and research information.

From the Natural Resources Conservation Service (United States). An extensive collection of articles and resources.

Aims to collate existing data on chemical and physical attributes, decomposition behavior in soils and animal feed value. To provide data for soil decomposition and nutrient cycling models and to identify best materials as soil amendments. Freely available to researchers.

Ohio State University Extension fact sheet explaining texture and structure, aeration and water retention, and how container shape and watering routines affect performance.

An educational program designed to teach the importance of soil, types of soil, erosion processes, and soil conservation principles. Description of kits and teacher material available.

Educative information about what soil is, how it is formed and how it is lost. Focus on soil conservation and soil ecology.

From Penn State University. Includes chapters on soil management and fertility. Availeble in HTML and PDF form.