Magnesium influence on plant uptake of phosphorus in a calcareous soil

L. M. Xiong, Z. G. Zhou

Research output: Contribution to journalJournal articlepeer-review

4 Citations (Scopus)


A pot experiment was conducted to investigate the role of magnesium (Mg) in plant utilization of 32 phoshorus (P)-labelled P in a calcareous soil (Typic Hapluquent). Results with two successive harvests of ryegrass shoots indicated that Mg had no obvious influence on plant uptake of the P applied. In a separate incubation study with the same soil, labelled P along with different levels of Mg was introduced to the soil at two time intervals and soil inorganic P was fractionated. The isotope data of P in various fractions indicated that Mg at the test levels had no obvious influence on P transformation either. It is suggested from the experiments that Mg is unlikely to be able to promote plant utilization of fertilizer P in calcareous soils.

Original languageEnglish
Pages (from-to)1251-1261
Number of pages11
JournalJournal of Plant Nutrition
Issue number6
Publication statusPublished - Jun 1995

Scopus Subject Areas

  • Physiology
  • Agronomy and Crop Science


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