Sorghum is mainly grown in temperate areas as a part of the regular feeding program for livestock to supplement the short fall in pasture production during summer and fall months or as an emergency crop to provide forage, after winter kill of perennial grasses or after failure of a main crop. It is a cheaper feed than corn with less fertilizer requirement, less pest control and one third less water. Sorghum grows well on all type of soils. The plant can reach over four feet in height and produces several tillers. Forage sorghum is drought and heat tolerant but frost sensitive. The area planted annually under Sudan grass in the US is about 4 million acres. Forage sorghum is grown in Canada with seeds imported from USA. AERC Inc. has developed new multi-cut forage sorghum hybrids adapted to the Canadian climate.
Canadian Forage Sorghum Hybrid 30 is developed from Sudan type parents. It is high yielding fine stemmed, and could produce over two to three cuttings during the growing season. It provides a wide range of uses to the grower. It may be used for hay, haylage, silage, green chop or pasture. This has excellent recovery after harvesting or grazing. Fine leafy stems makes it an excellent choice for hay. The CFSH 30 hybrid developed in Ontario had 1.0 ppm (% DM) of prussic acid levels after the frost, whereas US Sudan grass had 5.3 ppm (% DM). Prussic acid level of less than or equal to 250 ppm (% DM) is safe to pasture.