|
Belleville, Ontario | A composite sample can be greatly skewed by that 1 probe that hits an extreme concentration of the nutrient being tested. So, the one thing you can be sure of is that when a sample reads a near null value, there should be alarm bells going off. The soil test should be used in concert with observation, yield maps, tissue test and other resources.
Just the same as the doctor, the diagnosis does not come from 1 test, but from a range of tests, documentation of observation, and 'knowing your patient'. I think Wilson is right that each farmer/agronomist needs to know their patient, and take each piece of information in context. I personally prefer smart sampling and taking from the good and the bad spots in a field to full out grid sampling, but that is what has been working for the area I wander. Again, the farmer is the most valuable source of information, he/she knows the places that are suspect for problems.
There have been soil issues solved by soil tests, even micro nutrient issues.
The Farmer's Edge Agri-Coaching | |
|
Soil Test Costs ?
