Artikkelin koko teksti on saatavilla vain PDF-formaatissa.

Timo Penttilä (email)

Jatkolannoitus Lapin viljavilla rämeillä

Penttilä T. Jatkolannoitus Lapin viljavilla rämeillä.

English title: Refertilization on meso-trophic pine swamps in northern Finland

Tiivistelmä

The paper deals with the effects of refertilization on the growth response of pine growing on drained nitrogen-rich swamps in northern Finland. The results of five replicated factorial experiments are presented. Primary fertilization, mainly with PK, was carried out 10—13 years before refertilization with the following treatments: N, P, K and in three experiments also a micronutrient mixture (H). Growth responses were measured 4—6 years after refertilization. Of the single factors, N had a positive effect in a shallow-peated experiment and the micronutrient mixture in a deep-peated one. The effect of P and K was not significant in any of the experiments. However, the treatment means showed a clear positive effect with NK or NKH, except in the northernmost experiment. The effect of PK strengthened towards the end of the study period. The results imply that primary fer-tilization, especially with P, still had an effect at the time of refertilization. Final conclusions concerning PK fertilization and also the effect of nitrogen should be based on a longer period of observation.

Tekijä
  • Penttilä, Sähköposti ei.tietoa@nn.oo (sähköposti)

Vastaanotettu 31.10.2017 Julkaistu 1.1.1984

Katselukerrat 2275

Saatavilla http://suo.fi/article/9592 | Lataa PDF

Creative Commons License CC BY-NC-ND 4.0

Rekisteröidy
Click this link to register to Suo - Mires and peat.
Kirjaudu sisään
Jos olet rekisteröitynyt käyttäjä, kirjaudu sisään tallentaaksesi valitsemasi artikkelit myöhempää käyttöä varten.
Ilmoitukset päivityksistä
Kirjautumalla saat tiedotteet uudesta julkaisusta
Valitsemasi artikkelit
Lähetä sähköpostiin
Tolonen K., (1989) What would be the significance of peat archives .. Suo - Mires and peat vol. 40 no. 2-3 artikkeli 9662 (poista) | Muokkaa kommenttia
Karsisto M., (1979) Effect of forest improvement measures on activit.. Suo - Mires and peat vol. 30 no. 3 artikkeli 9494 (poista) | Muokkaa kommenttia
Laiho R., (1996) Changes in understorey biomass and species compo.. Suo - Mires and peat vol. 47 no. 2 artikkeli 9755 (poista) | Muokkaa kommenttia
Waniek E., Szatylowicz J. et al. (2000) Determination of soil-water contact angles in pe.. Suo - Mires and peat vol. 51 no. 3 artikkeli 9799 (poista) | Muokkaa kommenttia
Jääskeläinen K., (1981) Cloudberry production in pine bogs Suo - Mires and peat vol. 32 no. 4-5 artikkeli 9536 (poista) | Muokkaa kommenttia
Mannerkoski H., (1983) An audible buzzer apparatus for indicating water.. Suo - Mires and peat vol. 34 no. 2 artikkeli 9569 (poista) | Muokkaa kommenttia
Hytönen J., (1984) The fertilization of energy willow plantations g.. Suo - Mires and peat vol. 35 no. 4-5 artikkeli 9594 (poista) | Muokkaa kommenttia
Heikkilä R., (1979) On the damages noted in pine seedling stands est.. Suo - Mires and peat vol. 30 no. 1 artikkeli 9487 (poista) | Muokkaa kommenttia
Heikurainen L., (1984) The maintenance and future of forest drainage ar.. Suo - Mires and peat vol. 35 no. 1 artikkeli 9578 (poista) | Muokkaa kommenttia
Penttilä T., (1984) Refertilization on meso-trophic pine swamps in n.. Suo - Mires and peat vol. 35 no. 4-5 artikkeli 9592 (poista) | Muokkaa kommenttia
Hakutulokset