作者: W. Römer , J. Augustin , G. Schilling
DOI: 10.1007/978-94-009-0891-8_24
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摘要: Because the diffusion coefficients of potassium and especially phosphate ions in soil are very small (Barber, 1974) uptake these nutrients is extensively dependent on concentration gradient conditions (e.g. water content) soils (Romer Schilling, 1987). For this reason mentioned can only be exploited from a cylinder around roots (Jungk, 1984). Therefore plant species with large root system like grasses superior to others e.g. leguminous plants regard (Steffen,