Nutrition in Wheat - In Crop
Constraint – Magnesium
Magnesium is a macronutrient
Magnesium is an essential component of chlorophyll and is required for the transport of phosphorus
Magnesium deficiencies are rare
Chlorosis of leaves, while the veins remain green
Abnormally thin leaves
Older leaves first affected, and most affected
Mild yield penalties may accompany a severe deficiency
A soil test or a plant tissue test should be used to confirm magnesium deficiency. A dolomite fertiliser can then be applied in appropriate quantities. Limiting the application of nitrogenous or potassium fertilisers to required amounts, rather than over supplying, may also increase the availability of magnesium.
Links and Resources
DAFWA - Magnesium deficiency
General information on magnesium, what to look for in the paddock and plant, what else it could be, where it occcurs, treatment, and monitoring.
DEPI VIC - What nutrients do plants require? Magnesium
6.3.6. Symptoms, fertiliser supplements, animal health implications, and preventative measures. Page last updated 2013.