Soils are generally fertile in Romania, but there are numerous areas with less favorable characteristics, which are, however, planted with cabbage, as consumers’ request and economic needs make it necessary. Variable factors which determined the set up of the experimental variants were represented by the amendments applied (calcium carbonate), and chemical fertilizers containing potassium. Correcting the reaction and the supply of podzolic, acid and low in potassium soils, resulted in a positive change of the cabbage leaves’ mineral composition, in achieving an optimal ratio between calcium and magnesium - adequate to normal metabolic processes – and in statistically significant reduction of the cells membranes’ permeability. It was noticed a significant increase of the cabbage leafs’ content in dry soluble substances, soluble carbohydrates and chlorophyll; titratable acidity increased, but it was not statistically ensured. A significant increase in the production of marketable cabbage was obtained by applying calcium carbonate corrections on acid soils and by administrating potassium salts; significant positive differences were found on cabbage crops grown on soils with a lower supply in potassium. Significant reduction of the losses caused by evapotranspiration, decay and conditioning, as well as of the total losses was recorded after 140 days.

 

 

This abstract was accepted to be presented at the conference entitled “40 Years of Horticulture Education in Cluj-Napoca†Cluj-Napoca, September 27, 2017, being included in ‘Book of Abstracts’ of this special-anniversary event (http://conference.shst.ro). All accepted papers will be published in a special issue of Notulae Botanicae Horti Agrobotanici Cluj-Napoca journal.