Brackling — the buckling of the upper third of the stem — can cause serious losses in both yield and quality of spring barley grain and straw. As we look ahead to the 2025 season, particularly if dry summer conditions return, it’s worth revisiting the factors that contribute to brackling and the measures that can help mitigate it.
Understanding the risk factors
Although varietal resistance plays a role, even well-rated varieties can show significant brackling under certain environmental conditions. Trial data from recent years shows how site and season variability can influence outcomes, reinforcing the need for a comprehensive approach.
Key agronomic influences
Nutrition
Nitrogen management is critical — early application is advised, especially in higher-risk situations. Potassium also plays a vital role in maintaining stem strength and water regulation. Inadequate potassium, particularly during dry conditions, can weaken the crop and increase susceptibility to brackling. In situations where soil potassium is deficient, or when crops are under transient stress, a foliar potassium such as Wholly K PGA offers an effective and responsive alternative. For more information, visit https://www.agrovista.co.uk/wholly-k
Micronutrient deficiencies, especially manganese and copper, should also be avoided as they affect lignin production and stem integrity.
Growth regulation
Plant growth regulators that target upper stem internodes can reduce brackling and support better yields. Timing and product selection should be tailored to crop stress levels and developmental stage to ensure maximum effect.
Fungicide strategy
A strong fungicide programme does more than control foliar disease — it also supports stem health and can reduce brackling. Trial work suggests that adding certain active ingredients can further improve both brackling resistance and yield.
Harvest timing
Delayed harvesting increases the likelihood of brackling. Fields with known risk factors should be prioritised to preserve quality and minimise harvest disruption.
Looking ahead
With the possibility of a dry summer in 2025, now is the time to review crop plans and assess fields for brackling risk. A holistic, proactive approach — grounded in good agronomy — remains the best defence.
Speak to your local Agrovista Agronomist for more detail and to discuss your individual farming requirements.
Mark Hemmant is the Central Technical Services Manager for Agrovista.