The fitting of frequency distributions to height measurements on grazed swards
- 1 September 1986
- journal article
- research article
- Published by Wiley in Grass and Forage Science
- Vol. 41 (3) , 247-249
- https://doi.org/10.1111/j.1365-2494.1986.tb01810.x
Abstract
Herbage height was measured in ryegrass/white clover (Lolium perenne/Trifolium repens) swards grazed by cattle using the rising plate meter or the sward stick. Ordinary single normal and double normal distributions were fitted to the data obtained. After the first 6 weeks of continuous grazing the double normal distributions fitted data for the taller swards better than the single normal distribution did, but for a short sward there was no improvement. There was no improvement due to the use of the double normal distribution with data for swards grazed by sheep.This publication has 3 references indexed in Scilit:
- The design and conduct of experiments to measure animal and herbage production responses to fertilizer nitrogen under cutting and grazing managementsThe Journal of Agricultural Science, 1985
- The estimation of herbage mass of perennial ryegrass swards: a comparative evaluation of a rising‐plate meter and a single‐probe capacitance meter calibrated at and above ground levelGrass and Forage Science, 1983
- Value of a rising‐plate meter for estimating herbage mass of grazed perennial ryegrass‐white clover swardsGrass and Forage Science, 1982