Effects of phosphate fertilizer on biomass production and N2(C2H2) fixation by pot-grown Ulex gallii Planchon in a forest soil

P. O'Toole; D. G. Cahalane; E. P. Farrell

doi:10.1007/BF00337198

Effects of phosphate fertilizer on biomass production and N₂(C₂H₂) fixation by pot-grown Ulex gallii Planchon in a forest soil

P. O'Toole
, D. G. Cahalane
, E. P. Farrell

University College Dublin

Research output: Contribution to journal › Article › peer-review

Abstract

N₂(C₂H₂) fixation by Ulex gallii Planchon (dwarf or autumn flowering gorse/furze) seedlings was determined following 8 months of growth (December-August) in the glasshouse in a very acid, N- and P-deficient forest soil. Application of Na₂HPO₄·12H₂O or North African ground rock phosphate fertilizer was essential for growth, nodulation and C₂H₂ reduction activity. Overall, both the sodium phosphate and the rock phosphate were equally effective P sources and the maximum acetylene reduction by intact roots was measured as 4.09 and 4.69 μmol C₂H₄g^-1 fresh weight nodule h^-1, respectively. Applied NH₄Cl severely inhibited nodulation and restricted acetylene reduction activity but not seedling growth. The results are discussed in relation to the spread of U. gallii in the south of Ireland and its potential as a leguminous nurse crop for Sitka spruce on the very impoverished forest soils of the region.

Original language	English
Pages (from-to)	177-181
Number of pages	5
Journal	Biology and Fertility of Soils
Volume	12
Issue number	3
DOIs	https://doi.org/10.1007/BF00337198
Publication status	Published - Dec 1991
Externally published	Yes

Keywords

Acetylene reduction activity
Forest soil
Legume
Nitrogen fixation
Nitrogenase activity
Phosphorus fertilizer
Ulex gallii

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10.1007/BF00337198

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@article{ce3e3a8c9a6f4715b3752e2da7c76c26,

title = "Effects of phosphate fertilizer on biomass production and N2(C2H2) fixation by pot-grown Ulex gallii Planchon in a forest soil",

abstract = "N2(C2H2) fixation by Ulex gallii Planchon (dwarf or autumn flowering gorse/furze) seedlings was determined following 8 months of growth (December-August) in the glasshouse in a very acid, N- and P-deficient forest soil. Application of Na2HPO4·12H2O or North African ground rock phosphate fertilizer was essential for growth, nodulation and C2H2 reduction activity. Overall, both the sodium phosphate and the rock phosphate were equally effective P sources and the maximum acetylene reduction by intact roots was measured as 4.09 and 4.69 μmol C2H4g-1 fresh weight nodule h-1, respectively. Applied NH4Cl severely inhibited nodulation and restricted acetylene reduction activity but not seedling growth. The results are discussed in relation to the spread of U. gallii in the south of Ireland and its potential as a leguminous nurse crop for Sitka spruce on the very impoverished forest soils of the region.",

keywords = "Acetylene reduction activity, Forest soil, Legume, Nitrogen fixation, Nitrogenase activity, Phosphorus fertilizer, Ulex gallii",

author = "P. O'Toole and Cahalane, \{D. G.\} and Farrell, \{E. P.\}",

year = "1991",

month = dec,

doi = "10.1007/BF00337198",

language = "English",

volume = "12",

pages = "177--181",

journal = "Biology and Fertility of Soils",

issn = "0178-2762",

publisher = "Springer Science and Business Media Deutschland GmbH",

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T1 - Effects of phosphate fertilizer on biomass production and N2(C2H2) fixation by pot-grown Ulex gallii Planchon in a forest soil

AU - O'Toole, P.

AU - Cahalane, D. G.

AU - Farrell, E. P.

PY - 1991/12

Y1 - 1991/12

N2 - N2(C2H2) fixation by Ulex gallii Planchon (dwarf or autumn flowering gorse/furze) seedlings was determined following 8 months of growth (December-August) in the glasshouse in a very acid, N- and P-deficient forest soil. Application of Na2HPO4·12H2O or North African ground rock phosphate fertilizer was essential for growth, nodulation and C2H2 reduction activity. Overall, both the sodium phosphate and the rock phosphate were equally effective P sources and the maximum acetylene reduction by intact roots was measured as 4.09 and 4.69 μmol C2H4g-1 fresh weight nodule h-1, respectively. Applied NH4Cl severely inhibited nodulation and restricted acetylene reduction activity but not seedling growth. The results are discussed in relation to the spread of U. gallii in the south of Ireland and its potential as a leguminous nurse crop for Sitka spruce on the very impoverished forest soils of the region.

AB - N2(C2H2) fixation by Ulex gallii Planchon (dwarf or autumn flowering gorse/furze) seedlings was determined following 8 months of growth (December-August) in the glasshouse in a very acid, N- and P-deficient forest soil. Application of Na2HPO4·12H2O or North African ground rock phosphate fertilizer was essential for growth, nodulation and C2H2 reduction activity. Overall, both the sodium phosphate and the rock phosphate were equally effective P sources and the maximum acetylene reduction by intact roots was measured as 4.09 and 4.69 μmol C2H4g-1 fresh weight nodule h-1, respectively. Applied NH4Cl severely inhibited nodulation and restricted acetylene reduction activity but not seedling growth. The results are discussed in relation to the spread of U. gallii in the south of Ireland and its potential as a leguminous nurse crop for Sitka spruce on the very impoverished forest soils of the region.

KW - Acetylene reduction activity

KW - Forest soil

KW - Legume

KW - Nitrogen fixation

KW - Nitrogenase activity

KW - Phosphorus fertilizer

KW - Ulex gallii

UR - https://www.scopus.com/pages/publications/0026346731

U2 - 10.1007/BF00337198

DO - 10.1007/BF00337198

M3 - Article

AN - SCOPUS:0026346731

SN - 0178-2762

VL - 12

SP - 177

EP - 181

JO - Biology and Fertility of Soils

JF - Biology and Fertility of Soils

IS - 3

ER -

Effects of phosphate fertilizer on biomass production and N₂(C₂H₂) fixation by pot-grown Ulex gallii Planchon in a forest soil

Abstract

Keywords

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