Index
Magnesium Deficiency
Mg2+ is a fundamental macronutrient pivotal to various physiological and metabolic processes in horticultural crops, profoundly influencing the yield and quality of fruits, vegetables, and root crops.
For instance, a study revealed that Mg2+ supplementation in ‘Red Fuji’ apple trees bolstered nitrogen utilization, enhanced photosynthesis, and encouraged anthocyanin biosynthesis, thereby elevating fruit size, weight, and yield.
Problems caused by deficiency
Potential Causes
In acid soils, aluminum (Al), the hydronium ion (H+), and manganese (Mn) can reduce magnesium uptake by plants.
In basic soils, calcium (Ca) and sodium (Na) imbalance can outcompete / displace magnesium uptake.
When higher rates of ammonium (NH4+) forms of nitrogen have been applied with manure fertilizers, magnesium levels in plants can be lower. The same effect occurs where higher potassium (K) rates have been applied or where soils are naturally high in K, such as in arid regions.
How to increase Mg in Soil
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