Effect of soil acidity neutralization and mineral nutrition on yield and cation content in the biomass of parsley, lettuce and perko

Arsova, A.

Bulgarian Journal of Plant Physiology 20(1-4): 45-53

1994


Accession: 008546468

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Abstract
The combined effect of soil acidity neutralization and mineral nutrition on yield and content of hydrogen, calcium, potassium and magnesium cations in a water soluble and exchange adsorption state in the biomass of parsley, lettuce and perko was studied in pot experiments. Acidic sensitivity of the plants was assessed by the correlations yield/soil pH, which was most expressed in lettuce, followed by that in parsley and in repko. Along with the neutralization of soil acidity, the acidity (H+ ions) was reduced in plant tissues, while with the rise in mineral nutrition the electrolytic content in them increased (cations in water soluble state). However, this was manifested to a different degree in the various plants. The three plants studied had similar cation exchange capacity (total sum of exchange adsorbed cations), which showed a rising trend in perko and lettuce along with the growing soil acidity neutralization and mineral nutrition. Cation distribution in the biomass was traced depending on the applied physicochemical factors.