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The effects of electrical conductivity of soil solution on the germination and regrowth of leaves and roots of several vegetable crops



The effects of electrical conductivity of soil solution on the germination and regrowth of leaves and roots of several vegetable crops



Research Reports of the Rural Development Administration, Soils and Fertilizers 31(1): 56-82



Germination and seedling growth of 5 crops in saturated paste extracts of soil with EC values ranging from 1.9 to 30 mS/cm and pH ranging from 5.8 to 7.5 were studied. Optimum EC for germination was <5 mS/cm for Capsicum, tomatoes and lettuces, 10 mS for Chinese cabbages and 15 mS for cucumbers. Root and hypocotyl elongation were not decreased by conductivities <5 mS/cm, but some differences in the threshold EC for crop growth were found in the range 10-20 mS/cm.

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