History of Soil Science
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High Quality Content by WIKIPEDIA articles! High Quality Content by WIKIPEDIA articles! The early concepts of soil were based on ideas developed by a German chemist, Justus von Liebig (1803 1873), and modified and refined by agricultural scientists who worked on samples of soil in laboratories, greenhouses, and on small field plots. The soils were rarely examined below the depth of normal tillage. These chemists held the "balance-sheet" theory of plant nutrition. Soil was considered a more or less static storage bin for plant nutrients the soils could be used and replaced. This concept still…mehr

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High Quality Content by WIKIPEDIA articles! High Quality Content by WIKIPEDIA articles! The early concepts of soil were based on ideas developed by a German chemist, Justus von Liebig (1803 1873), and modified and refined by agricultural scientists who worked on samples of soil in laboratories, greenhouses, and on small field plots. The soils were rarely examined below the depth of normal tillage. These chemists held the "balance-sheet" theory of plant nutrition. Soil was considered a more or less static storage bin for plant nutrients the soils could be used and replaced. This concept still has value when applied within the framework of modern soil science, although a useful understanding of soils goes beyond the removal of nutrients from soil by harvested crops and their return in manure, lime, and fertilizer.