What is in this article?:
- Dry weather could adversely speed tobacco curing
- Slow drying process
• For burley growers, the dry conditions remind them of this time last year, when much of the tobacco crop was lost in the barn.
Slow drying process
To minimize the problems growers faced last season, Pearce said they should take steps at harvest and in the early curing phase to slow down the drying process.
“Giving the crop more time to cure will result in better color development,” Pearce said. “In drought-stressed areas, growers need to minimize the field wilt time. This will allow them to take more moisture into the curing barns.”
In areas where the dry weather has stunted growth, growers may want to consider packing the crop in the barn tighter than normal.
“In some cases, they may want to place sticks as close as 4 to 5 inches apart,” Pearce recommended. “That can reduce airflow through the crop and slow the drying process. With larger crops, I still recommend normal stick spacing.”
When the average daily relative humidity is at least 75 percent, growers should keep barns open, however below that, growers should consider closing the barn doors and vents during the heat of the day even with relatively green tobacco in the barn.
“One of the lessons from last year was that once we lost the initial moisture in the crop there was no getting it back,” Pearce explained. “The crop simply dried and the color did not change much after that.”
He recommends that growers monitor closed barns (especially those with green tobacco) very closely by checking them at least once a day, looking and smelling for signs of rot setting in.
At the first sign of houseburn, growers should open and flush the barn for a few days.
“For newer barns with no vent doors or in some cases no sides, growers may want to consider covering the openings with plastic or house wrap to slow airflow and minimize drying,” Pearce added. “As the tobacco progresses through yellowing, growers may need to close barns for longer periods of time.”
Priddy said the dry pattern has also impacted other agricultural areas.
“Combined with the late start to planting and dry weather, corn and soybeans are behind the 5-year average of where they should be in every stage of growth,” he said.
“Pond levels are low. Temperature-wise, the state got some relief from the previous summer months, with near seasonal normal temperatures almost every week. Most locations such as Louisville, Lexington, Paducah and London were right around their average days at or above 90 degrees, which was not the case just one month ago.
However; Bowling Green did have 25 days at or above the 90 degree mark, well above their normal for August.”