Results on refertilization of large sedge swamp pine stands in the North Ostrobothnia and Kainuu area

Moilanen, Mikko

In English

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Mikko Moilanen

Tuloksia suursararämeen männikön jatkolannoituksesta Pohjois-Pohjanmaalla ja Kainuussa

Moilanen M. Tuloksia suursararämeen männikön jatkolannoituksesta Pohjois-Pohjanmaalla ja Kainuussa.

English title: Results on refertilization of large sedge swamp pine stands in the North Ostrobothnia and Kainuu area

Tiivistelmä

The preliminary results concerning the effect of refertilization on volume increment in a pine stand at the first thinning stage are given in this article. The studied sites are thick peat, fertile pine swamps which have been originally drained during the 1930's. The refertilization was done in autumn 1974, 10-15 years after the basic fertilization. The largest increment in stand volume was obtained with nutrient combinations comprising all three main nutrients: nitrogen, potassium and phosphorus. Mere PK fertilization had very little effect on the stand growth. When the amount of potassium was increased from the present recommended level, the growth reaction increased "markedly", especially on open peatlands or on stands that had been regenerated on open peatlands.

Tekijä

Moilanen, Sähköposti ei.tietoa@nn.oo

Vastaanotettu 31.10.2017 Julkaistu 1.1.1984

Katselukerrat 461

Saatavilla http://suo.fi/article/9591 | Lataa PDF

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