The Fertilizing Process of the Roses Grown in Greenhouses on Earthy Brown Coal and Soil

Abstract

Roses growing inside greenhouses are usually performed in soils fertilized with organic and chemical fertilizers. Having in view that, on such a soil, the nutrition demand control is extremely difficult to be achieved; the experiences which we have performed were placed on soil and on earthy brown coal, the thickness of which equaled 45 cm. The objective of these researches was mainly to check a series of fertilizing procedures, supposed and designed to allow the maintaining of an optimal mineral nutrition level, also to obtain satisfying production performances and superior economic efficiency of the current method of rose growing in the soil. Their graciousness and their highly productive potential place the rose among the most appreciated flowers, cut within our protected areas. The latest opinion survey, performed and achieved among the flower buyers and flower producers/florists in Europe, make the rose come on the second place, after carnations.