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Nutrients in the soil - Magnesium
| Factor |
Influence on plant availability |
| Soil type |
The release rate of Mg from non-exchangeable pool
|
| Organic matter |
Binding of Mg
|
| CEC |
Potential of storing and releasing Mg
|
| Climate |
Degree of weathering
|
| Soil moisture |
Degree of loss by leaching
|
| pH |
Potential Mg occupancy of the cation exchange complex
|
| Land use, agricultural practice |
Loss of nutrients by removal and by fertilisation practice
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The total Mg content of the soil is divided into non-exchangeable, ex-changeable and Mg in the soil solution.
Plants take up Mg exclusively from the soil solution, which is replenished by Mg from the exchangeable fraction.
The Mg status of a soil is characterised by a dynamic process which is influenced by a range of factors. |
