ABSTRACT
COMPARISION BETWEEN A SYSTEM OF CONTINUOUS USE OF SOIL AND A ROTATION SYSTEM INCLUDING A PASTURE

Maximiliano Martínez V.1 y Elías Letelier A.1
 

Since 1967 a permanent trial has been carried on in La Platina Experimental Station. Two rotations and two level of nitrogen are compared factorially.
Rotations:
1. Three years of red clover/Dactylis.
Two years of turnips (in winter) and corn (in summer)
2. Every year turnips (in winter) and corn (in summer).
Fertilizer treatments:
a) 300 Kg of nitrogen/ha to turnips and corn (600 Kg/ha/year).
b) Without nitrogen.
The pasture was divided in two parts: in the first one, the cuttings were composted and recucled to the corresponding crops of turnip and corn; in the second part, the cuttings were not returned.

Keywords:
1Ing. Agr., Programa Fertilidad y Manejo de Suelos, e Ing. Agr., Coordinador del Area de Recursos Ambientales del INIA, Estación Experimental La Platina, Instituto de Investigaciones Agropecuarias (INIA), Casilla 5427, Santiago, Chile.