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Silva Fennica 1926-1997
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Acta Forestalia Fennica
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Articles containing the keyword 'irrigation'

Category: Article

article id 5157, category Article
Eino Mälkönen, Vesa Aro-Heinilä, Seppo Kellomäki. (1982). Lannoituksen ja kastelun vaikutus männikön pintakasvillisuuteen. Silva Fennica vol. 16 no. 1 article id 5157. https://doi.org/10.14214/sf.a15072
English title: Effect of fertilization and irrigation on the ground vegetation of a Scots pine stand.
Original keywords: mänty; lannoitus; kastelu; aluskasvillisuus; peittävyys; heinät; varvut; kanerva
English keywords: Pinus sylvestris; fertilization; irrigation; Scots pine; ground vegetation; dwarf shrubs; grasses; Calluna vulgaris
Abstract | View details | Full text in PDF | Author Info

A mature Scots pine (Pinus sylvestris L.) stand growing on a site of the Vaccinium type in Southern Finland was fertilized with nitrogen-rich NPK fertilizer at a level of 150 kg pure nitrogen per hectare. The sample plots were also irrigated during four growing seasons. The total amount of irrigation during this period was 1,200 mm. Fertilization alone increased the coverage of grasses and dwarf shrubs. The culmination of the increase occurred during the second growing season after the start of the treatment. The rapid effect of irrigation on the coverage of ground vegetation was not so strong as that of fertilization. It was concluded on the basis of the developed growth model that the coverage of dwarf shrubs, especially Calluna vulgaris, was, however, increased with the fertilization treatment for a prolonged period. Fertilization and irrigation had no visible effect on the coverage of lichens and mosses.

The PDF includes a summary in Finnish.

  • Mälkönen, E-mail: em@mm.unknown (email)
  • Aro-Heinilä, E-mail: va@mm.unknown
  • Kellomäki, E-mail: sk@mm.unknown

Category: Research article

article id 10698, category Research article
Constança Camilo-Alves, Jose Antonio Nunes, Ana Patricia Poeiras, Joao Ribeiro, Cati Dinis, Joao M. Barroso, Margarida Vaz, Nuno Almeida-Ribeiro. (2022). Influence of water and nutrients on cork oak radial growth – looking for an efficient fertirrigation regime. Silva Fennica vol. 56 no. 3 article id 10698. https://doi.org/10.14214/sf.10698
Keywords: irrigation; mixed models; Quercus suber; climate–growth relationship; increments; stem radius
Abstract | Full text in HTML | Full text in PDF | Author Info

The widespread cork oak (Quercus suber L.) mortality and reduced afforestation /regeneration are causing an overall reduction in cork production. To enhance trees’ growth and vitality, afforestation techniques using fertirrigation were tested. The main objective was the promotion of trees’ growth on new dense plantations using minimum water requirements until reaching productive forests. The experimental plot – Irricork – was installed in 2017 in a ≈1 ha stand with 14 years’ age cork oaks summer-fertirrigated since plantation. Four fertirrigation treatments were applied during fertirrigation campaigns. Radial growth, meteorological parameters and fertirrigation volume were measured every 15–30 days over four years. It was observed that weather, tree size, debarking and trees’ intra-competition had a significant effect on radial increments. Fertirrigation significantly enhanced growth during summer drought and decoupled increments from air vapor pressure deficit constraints. There was a linear relationship between trees’ radial increments and fertirrigation volume up to 140 m3 week–1. Above this value, increments were smoother. In conclusion, summer fertirrigation of 140 m3 week–1 efficiently enhanced the radial growth of trees with 50–75 circumference at breast height, under the particular edaphoclimatic conditions of the stand. This study showed to be, therefore, promising in the use of efficient fertirrigation the enhance cork oaks’ radial growth.

  • Camilo-Alves, MED – Mediterranean Institute for Agriculture, Environment and Development & CHANGE – Global Change and Sustainability Institute, Institute for Advanced Studies and Research, University of Evora, Pólo da Mitra, Ap. 94, 7006-554 Évora, Portugal ORCID https://orcid.org/0000-0001-5156-172X E-mail: calves@uevora.pt (email)
  • Nunes, Department of Plant Science, School of Science and Technology, University of Evora, Pólo da Mitra, Ap. 94, 7006-554 Évora, Portugal ORCID https://orcid.org/0000-0002-6144-3484 E-mail: jain@uevora.pt
  • Poeiras, MED – Mediterranean Institute for Agriculture, Environment and Development & CHANGE – Global Change and Sustainability Institute, Institute for Advanced Studies and Research, University of Evora, Pólo da Mitra, Ap. 94, 7006-554 Évora, Portugal ORCID https://orcid.org/0000-0002-6049-807X E-mail: apcp@uevora.pt
  • Ribeiro, Department of Plant Science, School of Science and Technology, University of Evora, Pólo da Mitra, Ap. 94, 7006-554 Évora, Portugal ORCID https://orcid.org/0000-0001-7242-5866 E-mail: jmrpr@uevora.pt
  • Dinis, ORCID https://orcid.org/0000-0001-6984-1033 E-mail: dinis.cati@gmail.com
  • Barroso, MED – Mediterranean Institute for Agriculture, Environment and Development & CHANGE – Global Change and Sustainability Institute, and Department of Plant Science, School of Science and Technology, University of Evora, Pólo da Mitra, Ap. 94, 7006-554 Évora, Portugal ORCID https://orcid.org/0000-0002-0160-3845 E-mail: jmmb@uevora.pt
  • Vaz, MED – Mediterranean Institute for Agriculture, Environment and Development & CHANGE – Global Change and Sustainability Institute, and Department of Biology, School of Science and Technology, University of Evora. Pólo da Mitra, Ap. 94, 7006-554 Évora, Portugal ORCID https://orcid.org/0000-0002-3368-757X E-mail: mvaz@uevora.pt
  • Almeida-Ribeiro, ICT – Institute of Earth Sciences and Department of Plant Science, School of Science and Technology, University of Evora, Pólo da Mitra, Ap. 94, 7006-554 Évora, Portugal ORCID https://orcid.org/0000-0002-0160-3845 E-mail: nmcar@uevora.pt
article id 64, category Research article
Karin Johansson, Ola Langvall, Johan Bergh. (2012). Optimization of environmental factors affecting initial growth of Norway spruce seedlings. Silva Fennica vol. 46 no. 1 article id 64. https://doi.org/10.14214/sf.64
Keywords: fertilization; establishment; irrigation; regeneration; seedling types; vegetation management
Abstract | View details | Full text in PDF | Author Info
  • Johansson, Skogforsk, Svalöv, Sweden E-mail: karin.johansson@skogforsk.se (email)
  • Langvall, SLU, Asa Forest Research Station, Sweden E-mail: ol@nn.se
  • Bergh, SLU, Southern Swedish Forest Research Centre, Sweden E-mail: jb@nn.se

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