Crop uptake and extractability of cadmium in soils naturally high in metals at different pH levels
作者： Å. Almas , B.R. Singh , R.P. Narwal , A.S. Jeng
DOI: 10.1080/00103629509369434
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摘要: Abstract A greenhouse experiment was conducted for three years to study the effect of different pH levels on metal concentrations in plants and cadmium (Cd) extractability by DTPA NH4NO3. The soils used were an alum shale (clay loam) a moraine (loam), which adjusted 5.5, 6.5, 7.0, 7.5. Wheat (Triticum aestivum), carrot (Daucus carota L.), lettuce (Lactuca sativa) grown as test crops. Crop yields not consistently affected at increasing soil levels. concentration Cd plant species decreased with both all years. Significant differences between only seen wheat Increasing also nickel (Ni) zinc (Zn) first year crop but copper (Cu) pH. more pronounced then soil. DTPA‐and NH4NO3‐extractable ...
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