Resumen

CUELLAS, M  y  ALCONADA MAGLIANO, A. Drenes subsuperficiales: control de la salinización edáfica en producciones intensivas bajo cubierta. RIA. Rev. investig. agropecu. [online]. 2018, vol.44, n.1, pp.60-68. ISSN 1669-2314.

The productive activity of the horticulture belt of Gran La Plata region, with common features throughout the metropolitan ´s belt, develops in soils with restricted permeability. The production management, along with irrigation using poor quality water and the characteristics of the soil, cause degradation by salinization, alkalinization and waterlogging, favoring the incidence of pests and diseases and affecting crop development. The subsurface drainage efficiency was studied to control soil salinization of a Typic Hapludert soil degraded for protected crops. Drains of two diameters (10 and 15 cm) installed on the roof of Bt, spaced to 5 m, about gypsum application were compared. Soil evolution and cultivation was evaluated during three production cycles. Drains markedly decreased soil salinity, independently to the diameter of them. The use of gypsum only showed temporary improvements. It was noted to the second and third production cycle, the effect of the drains around the site, including the control (average initial site CE 4.5 dS.m^-1 vs 1.77 dS.m^-1 end CE). Alkalinization was unchanged with any treatment. Crop yield increases with the use of drains, covering the additional cost of installation, and improving the economic performance of the system.

Palabras clave : Hapludert soil; Alkalization; Gypsum.

        · resumen en Español     · texto en Español     · Español ( pdf )