THE VISUAL ESTIMATION OF PASTURE AVAILABILITY USING STANDARD PASTURE CORES

Autor:	B. A. Hamilton, K. J. Hutchinson, R. W. McLean
Rok vydání:	1972
Předmět:	geography geography.geographical_feature_category Management Monitoring Policy and Law Coring Pasture Regression Set (abstract data type) Agronomy Double sampling Statistics Visual scoring Visual estimation Agronomy and Crop Science Reference standards Mathematics
Zdroj:	Grass and Forage Science. 27:29-34
ISSN:	1365-2494 0142-5242
DOI:	10.1111/j.1365-2494.1972.tb00682.x
Popis:	A coring technique (6), that may be used for estimating the mean amount of herbage on closely grazed pastures, has been adapted to include visual scoring. Two methods are described, both of which use sets of pasture cores from the sward as reference standards. The observers score the herbage on view at random sites against the standards. In the first method the scores are converted to herbage yields directly by reference to the yields of the standards. In the second method a double sampling regression technique is used and the set of standards is used as a visual guide only.
Databáze:	OpenAIRE
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