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- Haplustolls[remove]2
- Kansas[remove]2
- acid soils2
- cattle manure2
- conventional tillage2
- eroded soils2
- no-tillage2
- remediation2
- silt loam soils2
- urea2
- Avena sativa1
- Panicum miliaceum subsp. miliaceum1
- Sorghum bicolor1
- Triticum aestivum1
- application rate1
- crop rotation1
- fertilizer rates1
- fertilizers1
- grain sorghum1
- grain yield1