Weed control in winter beans
Why grow winter beans?
- Free residual N – peas and beans typically leave 50-75 kgN/ha for the following crop
- Yield boost to following crops – 0.7-1.0 t/ha average yield increase in winter wheat
- Black-grass control – later sown autumn crops allow more time for stale seedbeds
- Spreads farm workload – more efficient use of farm machinery and labour
- Break disease cycle in OSR and Cereals – good crop rotation gives a range of benefits
- Improved soil structure and soil health – providing benefits across the rotation
However, beans by their nature are not competitive crops
- Sown at low plant population
- Slow establishment and early growth means they don’t reach full ground cover very quickly
- Highly vulnerable to early weed pressure
Good rapid establishment is important
- Good seedbeds and soil structure aid establishment and efficacy and safety of pre-ems
- Beans are sensitive to compaction, another reason for good seedbeds and soil structure
- Drill to suitable depth (min 3 cm good soil cover over seed, avoid cloddy seedbeds)
- Optimum plant density is 20 plants/m2 fully established
- Make the most of the chance to control black-grass before the crop is sown
- Effective weed control ensures easier harvest without the need for desiccation
Pre-em weed control solutions
Nirvana® (PDM + imazamox) is the most reliable pre-emergence option in field beans.
- 2 herbicide modes of action for improved efficacy and resistance risk management
- The addition of imazamox to pendimethalin, complements its activity to give a wider spectrum of broad-leaved weed control along with the longest residual activity available
- Early control of a wide range of competitive broad-leaved weeds
- Good residual activity covers the germination periods of key weeds e.g. Annual meadow grass, Cleavers, Poppy, Charlock and later germinating weeds like Black bindweed, Fat-hen, Redshank and Knotgrass
- Nirvana® gives improved control of brassicas, mayweed and speedwells over straight PDM
| Nirvana® | Pre-emergence |
|---|---|
| 4.5 l/ha | - One shot solution - Long-lasting broad spectrum weed control - Moderate to high weed populations |
| 3.0 l/ha | - Moderate weed populations - General broad leaf weed control - May require post-emergence follow up |
| 2.5 l/ha | - As a tank mix partner - Broader spectrum that straight PDM - Beware of compromising Nirvana’s weed benefits |
If you have any queries or require further information, please contact your local BASF agronomy manager. Contact details can be found north_east here .
Always read the label and product information before use. For further product information including warning phrases and symbols refer to north_east https://agriculture.basf.com/gb/en
Nirvana® contains pendimethalin + imazamox.