By: Deanne Meyer, Livestock Waste Management Specialist, UC Davis and UC ANR, dmeyer@ucdavis.edu
Think about winter now. This may be difficult with 100 degree days. There’s a 70 percent or better probability of a super El Niño for winter. This could result in high winter rains beyond the 1982/1983 or 1997/1998 winters. Meteorologists are suggesting there will be near average rainfall through fall until Christmas. However, by January we’re looking at above or well above average rainfall for the San Joaquin Valley with higher rainfalls south of Fresno.
Now is the time to prepare for winter rains. Drive around the dairy and evaluate where preparations are needed for 3 inches of rain.
• Monitor lagoon capacity
• Utilize lagoon water according to nutrient management plan
• Check all drains and conveyance structures, ditches, pumps
• Clean gutters and downspouts
• Clean as much manure from pens and fence lines as possible
• Have flex hosing available to divert roof water from lagoon
• Dispose of plastic and anything else that can plug pipes
• Ensure flex hosing for trash pumps is functional
• Check backup generators now and in December.
• Weatherize corrals and roads if needed (fill holes, procure almond shells)
Pay particular attention to how manure and runoff will be managed for any new structures on the dairy. As always, check your favorite weather app to be advised of messy days ahead.