Nutrition in Wheat - In Crop
Constraint – Iron
Iron is a micronutrient
Iron is associated with the production of chlorophyll and helps to carry oxygen
Iron is also involved in reactions that convert nitrates to ammonia
Youngest leaves affected first
Chlorosis of leaves, with tips and margins yellowing last
Affected leaves curve upwards
Stunting and abnormal growth also occurs
Yield penalties can occur if left untreated
A soil test or a plant tissue test should be used to confirm iron deficiency. Managing soil pH so that pH is below 7 will increase the pool of available iron in the soil.
Links and Resources
DAFWA - Iron deficiency
General information on iron, what to look for in the paddock and the plant, what else it could be, where it occcurs, treatment, and monitoring.
DEPI VIC - What nutrients do plants require? Iron
6.4.5. Plant uses, deficiency symptoms, and soils at risk of iron deficiency. Page last updated 2013.