If you only sample from a single spot that won't tell you what your overall bed quality is. If you happened to grow tomatoes where you took your sample but beans 3 feet away you might end up over fertilizing based on the results. If you amend areas differently or grow wildly different things then sample separately.
If you only sample from a single spot that won't tell you what your overall bed quality is. If you happened to grow tomatoes where you took your sample but beans 3 feet away you might end up over fertilizing based on the results. If you amend areas differently or grow wildly different things then sample separately.