New Zealand Journal of Agricultural Research abstracts
Pasture production in Northern Spain dairy systems
R. MOSQUERA-LOSADA
Departamento de Producción Vegetal
Escuela Politécnica Superior de Ingenieros
Agrónomos
Universidade de Santiago de Compostela
Campus de Lugo
27002 Lugo, Spain
A. GONZÁLEZ-RODRÍGUEZ
Agrarian Research Centre of Mabegondo
Apdo. 10-15080
A Coruña, Spain
Abstract The effects of different grazing pressures on growth
rate and net pasture production over three years were evaluated on two
different dairy cow systems and two stocking rates. The two systems were:
grassland for grazing and silage at 2.5 cow ha-1 (Treatment A) and
grassland for grazing plus a maize/rye rotation for silage at two stocking
rates: 2.5 cow ha-1 (Treatment B) and 3.0 cows ha-1
(Treatment C). Contrasting growth patterns of pasture were found in the three
years because of different precipitation and temperature distributions. The
introduction of crops into dairy systems resulted in an increase of stocking
rate which modified pasture parameters. Stocking rate negatively affected
instantaneous growth rate and net pasture production when the differences
between treatments were relatively large.
Keywords stocking rate; net pasture production; growth rate
New Zealand Journal of Agricultural Research, 1999, Vol. 42: 125-132
0028-8233/99/4202-0125 $7.00/0 (c) The Royal Society of New Zealand
1999
PDF file of entire paper: medium quality (575K); (scanned from paper original: notes about this process)
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