PRELIMINARY DATA ABOUT CURRENT SOIL CONDITIONS INFLUENCE ON FIVE ROSE AND MINICARNATION CULTIVARS LOCATED AT SOUTH OF PONTEVEDRA PROVINCE (NW, SPAIN)

This paper deals with relations between two species production (rose and minicarnation) and one of the most important factors on it: soil fertility.
In order to do this samples of soil, plant and irrigation water were taken in a greenhouse exploitation, for which monthly minicarnation (especify by cultivars) and annual rose data production are available.

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.

International Symposium on Protected Cultivation of Ornamentals in Mild Winter Climates

M.E. López Mosquera, A. Martinez Cortizas, A. Ruano Prieto

https://doi.org/10.17660/ActaHortic.1989.246.22