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Variation in chemical composition of orchard soils
Author(s) -
Holland D. A.
Publication year - 1968
Publication title -
journal of the science of food and agriculture
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.782
H-Index - 142
eISSN - 1097-0010
pISSN - 0022-5142
DOI - 10.1002/jsfa.2740190306
Subject(s) - orchard , variation (astronomy) , soil water , variance components , environmental science , composition (language) , mathematics , soil science , agronomy , statistics , biology , linguistics , physics , astrophysics , philosophy
Some factors likely to affect variation in pH, P, K, and Mg in soil samples from an apple orchard are examined using results from a survey of forty commercial apple orchards, and estimates are made of effective variance components. Variation within an orchard is found to comprise both systematic and random components, the latter being independent of the area sampled. Laboratory errors are found to be independent of sample size but to vary between different laboratories. All components are found to be equally applicable to samples from depths of both 0.6 in. and 6.12 in.