Soil Sampling in a Wet Spring – Yes, It’s Worth the Challenge
The extreme weather conditions last fall and this spring resulted in many fields not being soil sampled.
The timing to accomplish this task is narrow this spring, but worthwhile. Guessing on the soil nutrient levels
and fertilizer requirements can be costly with either excess applications or under applications depriving your
crop of reaching its full potential while maximizing inputs. Sampling of wet soils can be challenging but will
be rewarding.
If conditions do not allow for hydraulic soil sampling equipment, hand probes still remain an effective method for collecting samples by foot or ATV, with soil analysis results available within 24 hours. To eliminate lost time from the discarding of poor quality, partial soil cores, head to the field with WD-40 at your side. Make sure that you use the brand name to lubricate the probe and not generic lubrication products as WD-40 has been tested and proven not to contaminate your sample results. Do not use vegetable oil lubricants as microbe activity will affect nitrate levels in your sample.
Rust-free equipment is a must-have
Not all probe designs perform the same in wet, sticky soils. The preferred probe tip is typically one with a recessed lip, which allows for added space inside the probe tip, reducing plugging. Your sampling equipment must be rust -free. Also, avoid using galvanized or brass equipment to prevent additional contamination. If you need to acquire the proper soil probe, contact your soil lab specialists or sampling equipment vendors to access the recommended equipment.
Pull your soil samples before spring tillage
A successful soil probe unearths valuable information
By exercising these standard soil sampling methods, producers can successfully determine valuable information in a short period of time in order to maximize returns this growing season.
