Fertilising eucalypts at plantation establishment on farmland in south-west Western Australia

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Responses of Eucalyptus species planted on farmland in the south-west of Western Australia to nitrogen (N) and phosphorus (P) fertilisation were investigated over two and three year periods. Factorial combinations of N (0, 6, 17 and 34 g per seedling) and P (0, 5, 12 and 24 g per seedling) in mostly water soluble (quick release) compounds were applied within a month of planting. On well drained soils growth of E. globulus exceeded that of E sideroxylon and E. microcarpa by a considerable margin. After three years there were significant (p < 0.05) growth responses by E. sideroxylon to N and P and by E. globulus to P only. In contrast, the third species planted in that experiment (E. microcarpa) showed no significant growth response to N or P. The growth response of E. sideroxylon to a combination of the maximum levels of N and P represented improvements (compared to no fertiliser) of 69% in tree height and 265% in crown volume index. For E. globulus the improvements with each level of P > 0 g were consistently around 14% in tree height and 29% in crown volume index. Improvements in basal area and stem volume index increased with each level of P tested from 13% (5 g P) to 42% (24 g P) in the case of basal area and from 40% (5 g P) to 58% (24 g P) in the case of stem volume index. On poorly drained soils the only significant effect of fertilisaer treatment two years after the planting on the species tested (E camaldulensis, E cornuta and E. woollsiana) was that increasing N level increased seedling mortality. Average mortality rate for the three species increased from 20% (0 g N) to 30% (34 g N). In other experiments, also with three species on both well drained and poorly drained soils, fertiliser rates were kept constant at 18 g P and 8 g P per seedling but the form and timing of fertiliser application was varied. However, it made no significant difference to survival or growth rates of any species whether the fertiliser was applied in granular or tablet form, at planting time or one month after planting.

Original languageEnglish
Pages (from-to)139-147
Number of pages9
JournalAustralian Forestry
Volume54
Issue number3
DOIs
Publication statusPublished - 1 Jan 1991
Externally publishedYes

Fingerprint

Western Australia
agricultural land
plantation
plantations
planting
poorly drained soils
seedlings
seedling
basal area
Sideroxylon
stems
stem
fertilizer
fertilizer rates
well
mortality
Eucalyptus
soil
tree crown
fertilizer application

Cite this

@article{e152ce1863c343f69cf014eb66f36797,
title = "Fertilising eucalypts at plantation establishment on farmland in south-west Western Australia",
abstract = "Responses of Eucalyptus species planted on farmland in the south-west of Western Australia to nitrogen (N) and phosphorus (P) fertilisation were investigated over two and three year periods. Factorial combinations of N (0, 6, 17 and 34 g per seedling) and P (0, 5, 12 and 24 g per seedling) in mostly water soluble (quick release) compounds were applied within a month of planting. On well drained soils growth of E. globulus exceeded that of E sideroxylon and E. microcarpa by a considerable margin. After three years there were significant (p < 0.05) growth responses by E. sideroxylon to N and P and by E. globulus to P only. In contrast, the third species planted in that experiment (E. microcarpa) showed no significant growth response to N or P. The growth response of E. sideroxylon to a combination of the maximum levels of N and P represented improvements (compared to no fertiliser) of 69{\%} in tree height and 265{\%} in crown volume index. For E. globulus the improvements with each level of P > 0 g were consistently around 14{\%} in tree height and 29{\%} in crown volume index. Improvements in basal area and stem volume index increased with each level of P tested from 13{\%} (5 g P) to 42{\%} (24 g P) in the case of basal area and from 40{\%} (5 g P) to 58{\%} (24 g P) in the case of stem volume index. On poorly drained soils the only significant effect of fertilisaer treatment two years after the planting on the species tested (E camaldulensis, E cornuta and E. woollsiana) was that increasing N level increased seedling mortality. Average mortality rate for the three species increased from 20{\%} (0 g N) to 30{\%} (34 g N). In other experiments, also with three species on both well drained and poorly drained soils, fertiliser rates were kept constant at 18 g P and 8 g P per seedling but the form and timing of fertiliser application was varied. However, it made no significant difference to survival or growth rates of any species whether the fertiliser was applied in granular or tablet form, at planting time or one month after planting.",
author = "P. Ritson and Pettit, {N. E.} and McGrath, {J. F.}",
year = "1991",
month = "1",
day = "1",
doi = "10.1080/00049158.1991.10674570",
language = "English",
volume = "54",
pages = "139--147",
journal = "Australian Forestry",
issn = "0004-9158",
publisher = "Institute Foresters of Australia",
number = "3",

}

Fertilising eucalypts at plantation establishment on farmland in south-west Western Australia. / Ritson, P.; Pettit, N. E.; McGrath, J. F.

In: Australian Forestry, Vol. 54, No. 3, 01.01.1991, p. 139-147.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Fertilising eucalypts at plantation establishment on farmland in south-west Western Australia

AU - Ritson, P.

AU - Pettit, N. E.

AU - McGrath, J. F.

PY - 1991/1/1

Y1 - 1991/1/1

N2 - Responses of Eucalyptus species planted on farmland in the south-west of Western Australia to nitrogen (N) and phosphorus (P) fertilisation were investigated over two and three year periods. Factorial combinations of N (0, 6, 17 and 34 g per seedling) and P (0, 5, 12 and 24 g per seedling) in mostly water soluble (quick release) compounds were applied within a month of planting. On well drained soils growth of E. globulus exceeded that of E sideroxylon and E. microcarpa by a considerable margin. After three years there were significant (p < 0.05) growth responses by E. sideroxylon to N and P and by E. globulus to P only. In contrast, the third species planted in that experiment (E. microcarpa) showed no significant growth response to N or P. The growth response of E. sideroxylon to a combination of the maximum levels of N and P represented improvements (compared to no fertiliser) of 69% in tree height and 265% in crown volume index. For E. globulus the improvements with each level of P > 0 g were consistently around 14% in tree height and 29% in crown volume index. Improvements in basal area and stem volume index increased with each level of P tested from 13% (5 g P) to 42% (24 g P) in the case of basal area and from 40% (5 g P) to 58% (24 g P) in the case of stem volume index. On poorly drained soils the only significant effect of fertilisaer treatment two years after the planting on the species tested (E camaldulensis, E cornuta and E. woollsiana) was that increasing N level increased seedling mortality. Average mortality rate for the three species increased from 20% (0 g N) to 30% (34 g N). In other experiments, also with three species on both well drained and poorly drained soils, fertiliser rates were kept constant at 18 g P and 8 g P per seedling but the form and timing of fertiliser application was varied. However, it made no significant difference to survival or growth rates of any species whether the fertiliser was applied in granular or tablet form, at planting time or one month after planting.

AB - Responses of Eucalyptus species planted on farmland in the south-west of Western Australia to nitrogen (N) and phosphorus (P) fertilisation were investigated over two and three year periods. Factorial combinations of N (0, 6, 17 and 34 g per seedling) and P (0, 5, 12 and 24 g per seedling) in mostly water soluble (quick release) compounds were applied within a month of planting. On well drained soils growth of E. globulus exceeded that of E sideroxylon and E. microcarpa by a considerable margin. After three years there were significant (p < 0.05) growth responses by E. sideroxylon to N and P and by E. globulus to P only. In contrast, the third species planted in that experiment (E. microcarpa) showed no significant growth response to N or P. The growth response of E. sideroxylon to a combination of the maximum levels of N and P represented improvements (compared to no fertiliser) of 69% in tree height and 265% in crown volume index. For E. globulus the improvements with each level of P > 0 g were consistently around 14% in tree height and 29% in crown volume index. Improvements in basal area and stem volume index increased with each level of P tested from 13% (5 g P) to 42% (24 g P) in the case of basal area and from 40% (5 g P) to 58% (24 g P) in the case of stem volume index. On poorly drained soils the only significant effect of fertilisaer treatment two years after the planting on the species tested (E camaldulensis, E cornuta and E. woollsiana) was that increasing N level increased seedling mortality. Average mortality rate for the three species increased from 20% (0 g N) to 30% (34 g N). In other experiments, also with three species on both well drained and poorly drained soils, fertiliser rates were kept constant at 18 g P and 8 g P per seedling but the form and timing of fertiliser application was varied. However, it made no significant difference to survival or growth rates of any species whether the fertiliser was applied in granular or tablet form, at planting time or one month after planting.

UR - http://www.scopus.com/inward/record.url?scp=0000755356&partnerID=8YFLogxK

U2 - 10.1080/00049158.1991.10674570

DO - 10.1080/00049158.1991.10674570

M3 - Article

VL - 54

SP - 139

EP - 147

JO - Australian Forestry

JF - Australian Forestry

SN - 0004-9158

IS - 3

ER -