A comparison of four methods of herbage mass estimation

Abstract

458 kg DM/ha, and the coefficients of variation (CVs) were 9%, 10%, 12% and 21%, respectively. For TH, the R2 values were 0.88, 0.87 and 0.76 for RPM, SS and PPCM, respectively. The corresponding residual s.d. values were 318, 331, and 442 kg DM/ha, and the CVs were 12%, 12%, and 16%, respectively. It is concluded that VE was the most accurate method of HM prediction and that the PPCM method was an inaccurate predictor of HM.