Plant: Erect or trailing, summer growing, perennial legume.
Stems: Hairy, mostly fairly fine (1 – 2 mm diameter).
Leaves: Comprise 3 leaflets; hairy on upper and lower surfaces.
Flowers: Purple-red and are borne on stems about 15cm long with a ring of small leaf-like structures at the base.
Pods: 4 – 9 cm long, straight and cylindrical; with 9 to 17 seeds per pod.
Seeds: seeds mottled, brown, black and tan; 170,000 seeds/kg.
Used mainly as a short-term legume within cropping systems where the focus is on producing high quality forage and/or addressing fertility decline. It is well suited to the heavy soils of the cropping regions of southern Queensland and northern New South Wales.
Best suited to regions with 600 – 1200 mm annual rainfall with a predominantly summer rainfall distribution.
Wide range of soil types acceptable but best adapted to moderately heavy to heavy textured cropping soils.
Will germinate and grow in temperatures lower than many other subtropical and tropical legumes. Tops killed by frost.
Grasses: Floren bluegrass, buffel grass, green, NuCal™ guinea, Gatton and Bambatsi panics, creeping bluegrass.
Legumes: Fine Stem stylo, Milgarra butterfly pea and caatinga stylo. When sown with these legumes, burgundy bean is usually less persistent
Sowing/planting rates as single species
3 – 5 kg/ha, 5 – 8 kg/ha for coated seed, depending on coat weight.
Sowing/planting rates in mixtures
1-3 kg/ha, 2-5kg/ha for coated seed, depending on coat weight.
Can be sown in spring or summer depending on moisture availability.
Requires a specific inoculum, strain CB1717.
Application of 10 – 20 kg/ha P (e.g. 100 – 200 kg/ha superphosphate) at sowing improves performance on old cropping soils. Molybdenum and sulphur may also be necessary in some situations.
Mostly used on cropping soils and additional fertilizer not usually applied in short term pasture phases.
Best rotationally grazed; under continuous grazing, stock concentrate on the palatable burgundy bean ultimately killing plants.
Ability to spread
Can spread within the paddock due to seed pod burst at maturity. High palatability however results in little spread outside of the sown area
Potential is low for weediness due to high palatability at all stages of maturity and rapid breakdown of hard seed.
No major pests, although seedlings can be affected by bean fly, and seed production by flower-eating caterpillars and green vegetable bugs.
No major disease problems. Bean mosaic virus symptoms can appear but has little effect on productivity.
Spinnaker® (Imazethapyr) can be used as pre-sowing/pre-emergent, post-sowing/pre-emergent or post-emergent herbicide (first or second full leaf). Glyphosate can be used post-sowing/pre-emergent to control weeds at planting, and has also been used at low application rates on mature plants to control emerging weeds.
Produces high quality feed, with crude protein levels around 20%, compared with those of lucerne of 22% and butterfly pea of 24.5%.
Extremely palatable and selectively grazed.
Burgundy bean can produce 5 – 8 t/ha of dry matter each year, with a first year production advantage over butterfly pea, caatinga stylo and lucerne.
None recorded. Burgundy bean does not cause bloat.