The effects of applied N, K and Mg on the distribution of magnesium in the plant

✍ Scribed by S. McIntosh; P. Crooks; K. Simpson

• Publisher: Springer
• Year: 1973
• Tongue: English
• Weight: 365 KB
• Volume: 39
• Category: Article
• ISSN: 0032-079X
• DOI: 10.1007/bf00014805

✦ Synopsis

Four samples of soil from a field experiment, with a range of exchangeable magnesium, were used in a pot experiment to study the effects of varying the N-and K-levels on water-soluble, acetone-soluble (chlorophyll) and insoluble (fibre) magnesium in the grass.

Irrespective of treatment, water-soluble and total magnesium concentrations in the plant increased as the season progressed.

Irrespective of the amount of potassium applied there was a very good correlation between water-soluble and total magnesium in the grass.

There was also a good linear relationship at each cut between exchangeable soil magnesium and the concentration of both total and water soluble ma.gnesium in the plant, but not with acetone-soluble or insoluble magnesium.

Increasing potassium fertilizer highly significantly reduced total and water-soluble magnesium and increased the fibre magnesium content of the grass. Increasing N increased total and water-soluble magnesium only at the low K level.