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This is the second volume in the series Nutrients in Ecosystems. Sulphur as an essential plant nutrient has received little attention. This is explained by the facts that sulphur was obviously in sufficient supply from the atmosphere, from soil and as a by-product in mineral fertilizers. Increases in the yield potential and thus in the nutrient requirement of modern crops, however, as well as remarkable changes in SO₂ emissions by private households, power stations and industry, associated with legislative measures to reduce air and water pollution, have altered the...

Phosphorus is essential for all living organisms, reserves in geogenic deposits are finite, and phosphorus nutrient mining and oversupply are common phenomenons on agricultural soils. Only if the agricultural phosphorus cycle can be closed and the fertilized nutrient been utilized completely, phosphorus management will be sustainable. The target is ambitious, but the authors provide with their contributions premises and solutions to achieve it. This book comprises contributions from different disciplines thus delivering significant research and information on phosphorus likewise for...