Biserrula is a deep rooted, hard seeded, aerial seeding, self regenerating annual pasture legume. It will grow on a wide range of soil pH (from 4 to 8) and textures.
Biserrula produces good quality forage in terms of dry matter digestibility, metabolisable energy and crude protein. It show good early vigour in regenerating stands.
Biserrula is a very productive, good quality and persistent annual pasture legume. It has the capacity for high seed yields and will tolerate heavy constant grazing. Its deep rooted nature (2 metres) enables it to stay green 2 to 4 weeks longer than sub clover. There have been numerous reports of plants staying green during summer. About 50% of seeds will survive ingestion by sheep, allowing the seed reserves to be maintained at high levels with summer grazing.
Biserrula appears to have some levels of unpalatability during flowering and seed set. Therefore stock selectively graze weeds and other components of the pasture. This provides an opportunity to control weed seed set without herbicides.
In regenerating stands, where seed reserves are high, green and brown manuring can be used prior to a crop, knowing that seed levels are sufficient to regenerate after crop.
Both Casbah and Mauro produce high quality grazing for sheep and cattle, in both green and dry form. Due to its hard seedeness Biserrula is protected against false breaks. It grows on a wide range of soils and pH, tolerates heavy grazing and is quite drought tolerant. Its deep rooted nature (up to 2m) makes it a high water use plant and its indeterminate nature means it will continue to grow, flower and set seed as long as it has access to moisture.
Casbah is ideally suited to a year in year out cropping system. However, after two seed sets in the first 3 years, it will persist after 3-5 years in continuous cropping cycles. Mauro is best suited to farming systems with a longer pasture phase.
3-5kg/ha in a blend
Sowing depth should be no greater than 10mm.
It is essential that BS (Biserrula Special) inoculant be used to maximise production.
Soil test should be taken on the paddock prior to planting and adjustment made accordingly.
Sow with phosphorous and potassium based fertiliser, further applications can be applied moisture allowing.
Rotationally graze within 6 weeks of emergence to reduce weed competition. Gradually increase stocking rate as more FOO (Food on offer) becomes available. In FIRST YEAR de-stock at commencement of flowering to maximise seed set. In subsequent years de-stocking is not necessary. It is advisable to regularly rotate sheep grazing Biserrula every 5-7 days to reduce the risk of photosensitization. This generally is more likely during flowering.
Biserrula is tolerant of red-mite and lucerne flea once past the cotyledon stage, but is susceptible to damage from aphids.
After senescence, Biserrula is very high quality dry feed.
If intending to harvest seed, seek specialist advise available from Ballard Seeds or Global Pasture Consultants.
With Casbah it is important to crop in year two to bury the seed to commence softening and return to pasture in year 3. This will provide a seed bank capable of withstanding long cropping phases.