PRELIMINARY DATA ABOUT CURRENT SOIL CONDITIONS INFLUENCE ON FIVE ROSE AND MINICARNATION CULTIVARS LOCATED AT SOUTH OF PONTEVEDRA PROVINCE (NW, SPAIN)
In agreement with previous works it has been noted a general increase on nutritive soil status (N, P, exchangeable cation, organic matter,…) and a nearly total elimination of exchangeable aluminium. Negative modifications were also observed, being an increase of soil salinity, some anions excess (Cl-, NO-3) and high Ca levels, the more important ones. This latter could be responsible to the Fe defficiency stated out by foliar analysis for both species.
Despite of this, yields range from optimal to high for minicarnation cultivars, and tend to increase with plant age reaching the ponderated standar for rose.
Production seems not to be explained by any individual soil property but by a set of them, being remarkable the good correlations in which P, K and Mg are favoring factors of production and Ca excess, NO-3, and EC limiting ones.