Appearance
Centro is a perennial herb that can reach a height of 45 cm. The root system can reach up to 30 cm in depth, frequently in association with "Rhizobium", nitrogen-fixing bacteria. Stems grow and branch rapidly, producing a dense mass of branches and leaves on the soil. Stems do not become woody until about 18 months after planting. Leaves are trifoliate, with elliptical leaflets approximately 4 cm × 3.5 cm, dark-green and glabrous above but whitish and densely tomentose below. Flowers are generally pale violet with darker violet veins, born in axillary racemes. Fruit is a flat, long, dark brown pod 7.5–15 cm long, containing up to 20 seeds. Seeds are spherical, about 4–mm in diameter, dark brown when ripe.
Uses
"Centrosema pubescens" is widely used as forage and a source of protein to grazing cattle from southern Mexico to Colombia. In the nineteenth century it was cropped in Indonesia and the Malay Peninsula. It is well adapted to tropical conditions and altitudes below 600 m from sea level."Centrosema pubescens" is grown as a cover crop because it naturally suppresses weeds and is very tolerant to drought. Centro is unable to tolerate cold temperatures, but has very low soil and rainfall requirements. This plant is not suitable for human consumption but provides benefits through soil fertility and animal health.
This plant can be cultivated in regions with rainfall ranging from 1000 mm to 1750 mm per year. However, it has a reasonable drought tolerance thanks to its deep root system, so it can take up water from a significant depth. It grows well in nutrient-poor soils.
"Centrosema pubescens" can be intercropped with grasses, thus increasing the protein of the cattle diet.
The leaves can also be used as a cheap source of protein for broiler chickens. It is a good source of calcium and potassium for animals.
Recent production figures for several countries:
⟶ Brazil : 40 tonnes on average per year
⟶ Uganda: 220–275 kg/hectare, 1250 seeds per m2
⟶ Queensland: Dry- 12.8 tonnes per hectare per year
⟶ Animal Feed- 550–650 kg per hectare per year
⟶ Colombia: 7.6 tonnes per hectare per year
References:
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