Effect of Soil Compaction on Tanier Yields

Abstract

Two experiments to assess the effect of soil compaction on tanier yields were established on an Oxisol (Coto clay) and on an Ultisol (Corozal clay), which were either plowed once or four times at depths of 20 or 40 cm. An undisturbed plot was used as control. Maximum yields were obtained when the topsoil was extensively loosened. The use of a penetrometer for measuring mechanical impedance to tanier root development proved to be adequate. Resistance to penetration of the order of 25 kg cm-2 or greater, at 15 cm depth, reduced tanier yields considerably.

Chicken manure as soil amendment: Effect on yield and foliar nutrient content of tanier, and on chemical properties of the soil.

“…En Puerto Rico se ha encontrado que utilizando prácticas de manejo como la siembra en banco, manejo de riego y tratamiento pre-siembra de la semilla se obtienen mayores rendimientos (Snyder et al, 2006;Snyder et al, 1995;González, 2005) aún bajo la presencia de "mal seco". Por otro lado, se ha reportado que la yautía es muy sensitiva a la resistencia mecánica de los suelos (Lugo-Mercado et al, 1978) y al drenaje pobre (Silva e Irizarry, 1980).…”