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Kustaa Seppälä (email)

Metsityslannoituksessa käytetyn lannoitemäärän ja levitystavan merkitys istutustaimiston alkukehitykselle ojitetuilla avosoilla.

Seppälä K. (1971). Metsityslannoituksessa käytetyn lannoitemäärän ja levitystavan merkitys istutustaimiston alkukehitykselle ojitetuilla avosoilla. Silva Fennica vol. 5 no. 2 article id 4838. https://doi.org/10.14214/sf.a14640

English title: The quantity of fertilizer and application methods used in afforestation of open bogs

Abstract

The paper describes the results obtained from an experiment of fertilization of drained treeless peatlands in connection of planting in three sites in Central Finland. Scots pine (Pinus sylvestris L.) seedlings 2+0 was used. The fertilizer (Y-fertilizer for peat soils, 14% N, 18% P2O5, 10% K2O) was applied in rates of 0, 20, 40 and 80 g/transplant. The fertilizer was strewn either around the plant within a circular patch of 20 cm in diameter, in a ring with a radius of 10 cm and in a ring with a radius of 20 cm. The seedlings were measured two and five years after planting.

The greater the quantity of fertilizer applied and the closer it was applied to the plant the higher was the mortality of transplants. Fertilization increased the mortality during the first two growing seasons after application. Later, however, the mortality decreased to a similar level irrespective the way the fertilizer was applied. In the beginning of the second growing season the fertilized plants showed considerably better height growth than the control plants. The smallest quantity of fertilizer applied produced almost full increase in growth. The pattern of application of the fertilizer had little effect on the growth.

It was concluded that a use of small amounts of fertilizer can be recommended in connection with planting and that it should not be applied very near the seedlings.

The PDF includes a summary in English.

Original keywords
mänty; istutus; metsitys; taimet; turvemaat; lannoitus; ojitetut suot; avosuot; kuolleisuus; pituuskasvu

English keywords
Pinus sylvestris; fertilization; afforestation; drained peatlands; Scots pine; height growth; mortality; seedlings

Published in 1971

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Available at https://doi.org/10.14214/sf.a14640 | Download PDF

Creative Commons License CC BY-SA 4.0

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