V. Gisborne Plains

Abstract
Pasture growth rates are presented for a site at Manutuke on the Gisborne Plains. Growth rates were obtained over 27 years from a grazing trial cut by a standard method using a movable cage technique. The mean yield and standard error of individual samples over all years of measurement are given for standard dates at 14-day intervals. The seasonal pattern of growth had a spring peak, fluctuated over summer and autumn, and declined over the winter. On average 17% of the annual growth was produced in winter (June, July, and August), 35% in spring, 25% in summer, and 23% in autumn. Lolium perenne dominated the pasture, and its growth pattern closely resembled that of the total sward. Trifolium repens was a minor component throughout the year and produced on average 44% of its annual growth during summer. General climatological data, and rainfall and temperature during the period of pasture measurements are given.

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