Temperature swings have left crops across the Plains in terrible conditions, with some farmers opting not to harvest Temperature swings have left crops across the Plains in terrible conditions, with some farmers opting not to harvest M errill Nielsen’s wheat crop looked healthy after he planted it in the fall on his 2,500-acre farm in north-central Kansas , about 50 miles west of Salina, the plants benefiting from higher-than-normal November rainfall. But an abnormally warm and dry winter,