DMYSDufferin Mall Youth Services (Canada)
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There were large and significant differences between breed types in DMY and 305- day milk yield in Senegal.
APSIM-simulatcd DMYs for three regions in New Zealand (Waikato, Canterbury and Southland) for the various LUC classes were similar to the DMI estimated from NZLRI.
Model performance with long-term pasture measurements at various sites was evaluated based on the correlation coefficient (R) and the concordance correlation coefficient (CCC) (Lin 1989), which tests for the linear relationship between points (here the monthly amount of pasture grown), as well as the departure from the 1:1 line (here the total annual DMY).
The DMY of each plot was calculated by multiplying the percentage DM of the oven-dried sample by the harvested green weight of the plot and converted to kilograms per hectare.
To test the validity of the experimental design and sampling methods, the homogeneity of variance for forage DMY was tested for each year's main effects (N source and N rate) as well across plots within year using PROC GLM (SAS Institute, 1999).
Clipping DMY, NUP, NUE, and NREC data were analyzed using analysis of variance for a mixed model.
Significant effects on DMY were attributed to all treatments and interactions (Table 1).
Returning clippings also increased overall DMY at both sites.
In 1998 at the RF site, error rates for C-N models of relative DMY averaged 1.2% for both CRM and CRT treatments.
The production potential of tall rescue, expressed as annual DMY, has been well addressed across the tall rescue transition zone (Hallock et al., 1965; Colyer et al., 1977; Matches, 1979; Smith and Calvert, 1979).
Data for DMY, CPC, IVDMD, total forage protein (DMY times CPC), and total digestible forage (DMY times IVDMD) were analyzed as a split-plot in time analysis of variance with species mixture (treatment) as the main plot and year as the subplot (SAS Institute, 1988).
All DMY were within reported ranges for alfalfa, red clover, and birdsfoot trefoil (Buxton et al., 1985; McGraw and Marten, 1986).