New research on strategic tillage in dryland no-till systems
K-State Research & Extension is doing research studies in Garden City, Hays, and Tribune on evaluating strategic or occasional tillage (one or two tillage operations every three years in a wheat-sorghum-fallow rotations compared to no-till to determine the effect of low-frequency tillage in the cropping system.
The objectives of this study were to determine the effects of strategic tillage in long-term NT systems on:
1. Soil water content at winter wheat planting
2. Winter wheat and grain sorghum yields
3. Effectiveness of ST to redistribute soil nutrients, reduce soil acidity, and control perennial grass and herbicide-resistant weeds
4. Determine soil quality following tillage of an otherwise long-term NT soil
Take-home message – thus far
This study is on-going but the results so far, suggest strategic tillage could provide a mitigation option for herbicide-resistant weeds in no-till crop production with little impact on crop yields and soil chemical properties.
For more detailed information on this study, please refer to: “Strategic Tillage in Dryland No-tillage Crop Production Systems,” Kansas Agricultural Experiment Station Research Reports: Vol. 5: Iss. 4. https://doi.org/10.4148/2378-5977.7756
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