https://www.tridge.com/products/velvel-bean/wiki
-Velvet bean is grown as intercropping systems with maize, pearl millet, sorghum or sugarcane. The crop gives reliable yields in dry farming and low soil fertility conditions that do not allow the profitable cultivation of most other food legumes (Buckles et al., 1998). Velvet bean yields range from 10 to 35 t green material/ha and from 250 to 3300 kg seeds/ha. Harvesting can be started when it turns green to dark, brown or black. If velvet bean is grown for forage, it can be harvested when the pods are still young, usually between 90-120 days after sowing (Heuzé, 2015).
-Precaution: When intercropping with other crops, velvet bean should be delayed at least a month to prevent the beans from overtaking the corn. Rats may use the vines to climb up and eat the corn. Especially in fertile soil, the velvet bean grows very rapidly and may even need to be pruned to retard its progress (ECHO Asia).
-Plant spacing – Plant seeds 2.5 cm (1 in) deep in hills 30-75 cm (1–3 ft) apart. Inoculating the seeds with Rhizobium species may improve germination and subsequent nitrogen fixation abilities (ECHO Asia).
-The production of velvet bean is widely distributed in South East Asia largely found in Bangladesh, India, Sri Lanka, Malaysia. It is also found in Asia, America and Afric