Severely repressed lodgepole pine responds to thinning and fertilization:19-year results | Zendy

Craig Farnden | Zendy; Les Herring | Zendy

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Severely repressed lodgepole pine responds to thinning and fertilization:19-year results

Author(s) -

Craig Farnden,

Les Herring

Publication year - 2002

Publication title -

the forestry chronicle

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.335

H-Index - 49

eISSN - 1499-9315

pISSN - 0015-7546

DOI - 10.5558/tfc78404-3

Subject(s) - thinning , human fertilization , extrapolation , yield (engineering) , range (aeronautics) , horticulture , biology , forestry , botany , zoology , mathematics , agronomy , geography , statistics , physics , engineering , aerospace engineering , thermodynamics

A set of speculative and exploratory treatments was applied to a severely repressed strand of 18-year-old lodgepole pine in 1979. After 19 years, various combinations of row thinning, hand thinning and fertilization have provided a remarkable range of results, with the best treatments gaining 3 m in top height and 8 m in apparent site index (reference age 50 years breast height) over the untreated stand. The best results were observed where both growing space and nutrition were improved. Extrapolation of the results using simulation suggests large gains in yield at harvest. Key words: thinning, fertilization, lodgepole pine, repression, stagnation

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