Additional research is required to overcome some of the problems with planting no-till corn after winter wheat. Farmers have identified reduced emergence and plant stands and reduced yields related to growing no-till corn after winter wheat. Research to investigate residue management after winter wheat should continue. Methods of coping with the increased residue on the soil surface and cooler moister seedbed conditions must be developed. Lime issues related to no-till corn production should also be addressed.
Lime is relatively insoluble and immobile in the soil.
In no-till production when the option of incorporating lime with tillage is no longer available, the efficacy of lime additions is not well documented. Although there has been much work done relating the effects of tillage systems on the production of crops in Ontario there are still unanswered questions. Producing no-till corn on fine textured, wet soils is still a challenge. The effects of planting in wet conditions with no-till and reduced tillage have not been addressed. Research should be continued on improving the no-till system and making it more adaptable to specific problem soils.