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Sandy soils cover approximately 900 million ha worldwide, and there are extensive areas of sandy soils under cultivation. Most sandy soils have high water permeability, low water-holding capacity, low ability to retain and exchange nutrients, weakly developed soil structure and they may be prone to erosion by wind. As irrigation is required for obtaining good crop yields, there is a risk of substantial leaching of nutrients and pesticides, and ground water depletion. Due to global pressure on land resources, marginal soils such as sandy soils are taken into production or cultivated more...

Ancient Greece and China Compared is a pioneering, methodologically sophisticated set of studies, bringing together scholars who all share the conviction that the sustained critical comparison and contrast between ancient societies can bring to light significant aspects of each that would be missed by focusing on just one of them. The topics tackled include key issues in philosophy and religion, in art and literature, in mathematics and the life sciences (including gender studies), in agriculture, city planning and institutions. The volume also analyses how to go about the task of comparing,...