Cover Crop Series: Hydan PPS Sudan
Hydan PPS Sudan is a member of the Sorghum genus, all of which tend to be similar. However, sudangrasses, including Hydan PPS Sudan, tend to have thinner stems than other sorghums. Hydan PPS Sudan has the photoperiod sensitive trait, meaning it will not flower until the days get shorter and the nights get longer at the end of summer. This allows it to make a great deal of vegetative growth. It is tall in height, easily exceeding 6 feet, and very late in maturity when compared to others in the Sorghum genus. Like most other members of the Sorghum genus, it is heat- and drought-tolerant, an excellent scavenger of soil nutrients (especially nitrogen), can have a risk of prussic acid, and is susceptible to sugar cane aphids. It is a warm-season annual but fall plantings can make decent growth before frost. Some people claim plants in the Sorghum genus are hard to burn down, possibly due to their height at maturity, but we have not had any problem. Seeding rate was 27 pounds per acre.
The Noble Research Institute is testing dozens of cover crop species with potential to help build soil health in the Southern Great Plains. This series features the cover crops we've grown on our Headquarters Farm in southern Oklahoma. These videos explore our results on establishment and growth, ground cover potential, and weed control for each crop.