Calibration of a rising plate metre for herbage mass estimation in ryegrass-white clover mixed swards containing different proportions of plantain (Plantago lanceolata L.)
Bryant, Racheal H.
The objective of this study was to develop calibration equations for a rising plate metrer (RPM) to estimate herbage mass in irrigated ryegrass/white clover (RGWC) swards with varying proportions of plantain. A 32-ha area, divided into 0.3-ha paddocks, was randomly allocated to three treatments sown with increasing plantain seeding rates: (i) RGWC with no plantain, (ii) RGWC + 3 kg/ha and (iii) RGWC + 6 kg kg/ha. Over two production years (2021/22 and 2022/23), 1138 quadrat cuts and 228 botanica