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No Thumbnail AvailableBook (stand-alone)Soil solarization. Proceedings of the First international conference on Soil Solarization. Amman 19-25 February 1990 1991
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Book (stand-alone)Plant nutrition for food security - A guide for integrated nutrient management 2006
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No results found.Of the essential material needs of humankind, the basic requirement is for an adequate supply of air, water and food. People have free access to the air they breathe. However, access to drinking-water and food, while easily obtained for some, is difficult for many. In addition to being physically available, these materials should also be of acceptable quality and continuously so. Hunger and diseases have affected humankind since the dawn of history. Throughout time, there have been p eriods of famine leading to suffering and starvation, making the fight against hunger and the diseases caused by malnutrition a permanent challenge. For many centuries until about 1800, the average grain yield was about 800 kg/ha, providing food only for a few people. The main problems were the low fertility of most soils (mainly caused by the depletion of nutrients) and the great yield losses from crop diseases and pests. -
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