Advanced search

Authors whose works are in public domain in at least one jurisdiction

List of works by Pekka Nygren

1-16 of 16 results

Transfer of nitrogen from a tropical legume tree to an associated fodder grass via root exudation and common mycelial networks

scientific article published on 10 June 2009

Applying a universal scaling model to vascular allometry in a single-stemmed, monopodially branching deciduous tree (Attim's model).

scientific article published on January 2008

Influence of forage harvesting regimes on dynamics of biological dinitrogen fixation of a tropical woody legume

scientific article

Behaviour of 137Cs from Chernobyl fallout in a Scots pine canopy in southern Finland

scholarly article by Pekka Nygren et al published June 1994 in Canadian Journal of Forest Research

Neotropical Legume Tree Inga edulis Forms N2-fixing Symbiosis with Fast-growing Bradyrhizobium Strains

Dinitrogen fixation by legume shade trees and direct transfer of fixed N to associated cacao in a tropical agroforestry system

scientific article published on January 24, 2015

Effects of nitrogen source and defoliation on growth and biological dinitrogen fixation of Gliricidia sepium seedlings

scientific article published on 01 January 2000

Nodulation and dinitrogen fixation of legume trees in a tropical freshwater swamp forest in French Guiana

scientific article published in 2003

Tree species diversity and forest structure in relation to microtopography in a tropical freshwater swamp forest in French Guiana

scientific article published in 2004

Improvement of reproducibility and research transparency in Silva Fennica

Components of functional-structural tree models

scientific article published in 2000

Effects of potassium deficiency and simulated acid rain, alone and in combination, on the ultrastructure of Scots pine needles

scientific article published in 1989

Growth of three oak species during establishment of an agroforestry practice for watershed protection

scientific article

Dinitrogen-fixation by three neotropical agroforestry tree species under semi-controlled field conditions

scientific article

Nodulation of Pterocarpus officinalis in the swamp forest of Guadeloupe (Lesser Antilles)

scientific article published in 1998

Arbuscular mycorrhizal symbioses in a cut-and-carry forage production system of legume tree Gliricidia sepium and fodder grass Dichanthium aristatum

scientific article published on 29 July 2012