- High UK treated yields ~ 106%
- Good all-round disease resistance
Yield
Disease resistance
Sweeney has good all round disease resistance. However a managed fungicide programme is recommended.
Fungicide use
- T0 – Needed in extreme disease pressure situations.
- T1 – Key application timing to protect the canopy during the plants’ main burst of growth.
- T2 – Ensure the crop is healthy at harvest, protecting the grain fill and green leaf areas, vital for maintaining grain quality.
Core fungicide programme
- T1 – Kayak + Triazole GS30 (will give control of a broad spectrum of disease)
- T2 – Amistar Opti + Triazole GS39-45 (protection against foliar disease and control of biotic and abiotic spotting)
Agronomic information
Growth habit
- Early Spring: Intermediate
- Tillering ability: Medium
- Maturity: Medium
Drilling dates
Sweeney is suitable for early or late drilling. Optimum drilling date is January – February.
Recommended sowing rate
Sowing rates should always be used in conjunction with the TGW of the seed and environmental conditions.
Nitrogen application
Varieties have different optimum nitrogen rates, therefore balancing N inputs to end market, variety and season is key. Ensure you have checked levels with your contract and end market.
In most situations the recommended amount of N for Jolika would be: 120-150kg/ha
To achieve higher grain N, suitable for European export, application can be delayed with no detrimental effect to grain size of quality.
PGRs
Not normally required, however NFC advises their use on lush crops or very fertile sites. In these cases use low rate Moddus (0.1-0.2l/ha) at GS29-30 to stabilise tillers and promote root development.
Grain quality
Specific weight: 67.8kg/hl
Sieving % through: 2.25mm - 2.8%
Sieving % through: 2.5mm - 7.6%
Nitrogen content: 1.48N
Sweeney produces inherently low grain nitrogen
Harvesting priority
Normal priority – it is always advisable to harvest the crop in the best condition as soon as moisture is correct. As with all malting barleys, the variety should be kept separate to prevent contamination and obtain the maximum premium from the end product.
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If you require any more information about this variety, please contact Syngenta Seeds on 01223 883400
Disclaimer
The information given in these pages is for general guidance only. Whilst every care has been taken to ensure it is accurate, it is out of necessity, of a general nature and variation in growing environment or climate and/or changes to legislation, regulations and best practice can render it inaccurate. Syngenta Seeds Limited cannot accept any liability arising out of or in conjunction with the use of this information. Crop protection products should be used in conjunction with manufacturers’ recommendations. Use pesticides safely – always read the label. Consult your agronomist for the most current advice.
