Cattle grazing under Pinus caribaea. 1. Evaluation of farm historial data on stand age and animal stocking rate
Por: Somarriba, Eduardo
| Lega, F.
Editor: 1991Tema(s): SISTEMA AGROSILVOPASTORIL | ARBOLES CON PASTO | ARBOLES Y ANIMALES | PINUS CARIBAEA | TROPICO HUMEDO | COSTA RICA | PINUS CARIBAEA | COSTA RICAClasificación CDD: 30991
En: Agroforestry Systems (Pa©Ưses Bajos) v.13(2) p. 177-185Resumen: An analysis is made of the animal stocking rate used in commercial Pinus caribaea plantations 2,5-8,5 yr old. Pines were planted at 2,5 x 2,5 m and programmed for clear-cut harvest at 10 yr rotations (pulpwood). Cattle grazing was introduced to reduce weeding costs. Stocking rate in 1983-1985 was 0,67 AU/ha/yr (AU = animal units 350 kg live weight). A quadratic model calculated using 1984 data (S = 0,0108 + 0,385A-0,0418Aø) describes the relationship between animal stocking rate (S) and stand age (A < 9,5 in yr). The model predicts a maximum of 0,89 AU/ha/yr at plantation age 4,5 yr. Grazing started at plantation ages > 2,5 yr; no plantations older than 9,5 yr are grazed.
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Analítica
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Biblioteca Conmemorativa Orton | Colección de revistas | Disponible | E30991 |
An analysis is made of the animal stocking rate used in commercial Pinus caribaea plantations 2,5-8,5 yr old. Pines were planted at 2,5 x 2,5 m and programmed for clear-cut harvest at 10 yr rotations (pulpwood). Cattle grazing was introduced to reduce weeding costs. Stocking rate in 1983-1985 was 0,67 AU/ha/yr (AU = animal units 350 kg live weight). A quadratic model calculated using 1984 data (S = 0,0108 + 0,385A-0,0418Aø) describes the relationship between animal stocking rate (S) and stand age (A < 9,5 in yr). The model predicts a maximum of 0,89 AU/ha/yr at plantation age 4,5 yr. Grazing started at plantation ages > 2,5 yr; no plantations older than 9,5 yr are grazed.
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