Abstract
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 language | English |
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Pages (from-to) | 1251-1261 |
Number of pages | 11 |
Journal | Journal of Plant Nutrition |
Volume | 18 |
Issue number | 6 |
DOIs | |
Publication status | Published - Jun 1995 |
Scopus Subject Areas
- Physiology
- Agronomy and Crop Science