Sorghum Sudan crosses are a warm season or C4 grass. Warm season grasses process sunlight into sugars (photosynthesis) differently than do cool-season (C3) grasses. The ramifications are that C4 grasses 1) must be planted after soil temperatures reach 60°F and are rising, 2) grow very little at less than 60°F, 3) grow best at 77°F and higher and 4) will produce a ton of silage at half the rain or irrigation needed by corn silage. Hot and dry is their ideal environment after germination. C4 grasses die soon after a freeze.
Sorghum Sudans (SxS) are used as far north as North Dakota by noted cover cropper Gabe Brown. AS6201 is a bargain priced SxS which, when used as part of a cover crop mix, will provide utility as a cover crop from both of its above and below-ground biomass.
- Older, economical variety
- Still BMR Gene 6
- Root exudates beneficial to soil
- Tremendous biomass
Zones: 1, 2, 3, 4, 5, 6
Sorghum Sudan will usually need about ten days to emerge, and then can grow 3" to 6" per day. A conventional or no-till drill is used for the seeding, and planting depth should be 1" to 1 ½". Planting after a small grain crop (e.g. rye or triticale) requires dealing with the allelopathic effects from the dying grain plants (minimum tillage or heavy liquid manure application). Weed management should be dealt with pre-planting as there are no herbicides available for Sorghum-Sudan grasses.