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Part IV General Discussion
Author(s) -
OISHI SATOSHI
Publication year - 1984
Publication title -
annals of the new york academy of sciences
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.712
H-Index - 248
eISSN - 1749-6632
pISSN - 0077-8923
DOI - 10.1111/j.1749-6632.1984.tb27039.x
Subject(s) - moderation , citation , annals , sociology , library science , law , political science , classics , history , psychology , computer science , social psychology
Some weaknesses were observed with clod collection procedures for the shrinkage analysis. Firstly, the clods collected may not be large enough (Chan, 1981) to gain a true representation of whole field structure. Secondly, the collection of clods was biased towards those clods that were large and firm enough to analyse. This introduced sampling bias where the soil was in good condition, as the only clods able to be collected appeared to be remnants of previously damaged soil. The ability of the clod shrinkage analysis to adequately assess the crack zones where roots tend to concentrate is also uncertain.