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THE VISUAL ESTIMATION OF PASTURE AVAILABILITY USING STANDARD PASTURE CORES

 

作者: K. J. Hutchinson,   R. W. McLean,   B. A. Hamilton,  

 

期刊: Grass and Forage Science  (WILEY Available online 1972)
卷期: Volume 27, issue 1  

页码: 29-34

 

ISSN:0142-5242

 

年代: 1972

 

DOI:10.1111/j.1365-2494.1972.tb00682.x

 

出版商: Blackwell Publishing Ltd

 

数据来源: WILEY

 

摘要:

ABSTRACTA 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.

 

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