Another crop of no-till sorghum can follow the corn or sorghum. The crop rotation and timely weed control minimize insecticide and fungicide use. Till to prepare the seedbed when you take the fallowed field back to winter wheat. Keep sufficient residue on the soil surface during all this time to protect against erosion. Opportunity farming, a type of continuous cropping, is commonly practiced in areas that receive 24 or more inches of annual precipitation.
Good managers can practice continuous cropping in areas with even less precipitation.
Apply glyphosate, alone or plus atrazine, after wheat harvest. Then, depending upon precipitation, the quantity of stored soil water, and previous atrazine use rates, either fallow the land or plant it to corn, sorghum, proso millet, soybean, or sunflower. Herbicides play a key role in weed control regardless of the rotation, and one cannot overstress timeliness in controlling weeds. Farmers will want to delay weed control as long as possible to save split application costs, but volunteer wheat and downy brome may remove enough soil moisture during a dry spring to reduce germination of corn, sorghum, or soybean seed. Germination of these crops have been delayed by as much as 20 days because of lack of timely weed control.