The old Bray-1 method required multiple samples to provide a full nutrient picture of the sample, slowing the process and increasing the cost. In contrast, the new method, called Mehlich-3, requires ...

The University of Delaware (UD) has rated soils in terms of the likelihood of profitable responses to additions of phosphorus (P) and potassium (K) from fertilizers, manures, and other soil amendments ...

Agricultural soil testing is critical to determining soil’s nutrient concentration and variability across your fields. It is ideal to test your fields’ soil at least every two to three years to inform ...

The price of soil sample testing at the Soil and Plant Testing Laboratory is being reduced as the lab adopts a new testing method.

Is colourimetry the future of soil carbon measurement?New research led by Dr Yassine Bouslihim at the National Institute of Agricultural Research (INRA) in Rabat suggests that soil colour ...

In the early stages, Uganda's soils were considered fertile and little was done to improve productivity in a systematic way. However it was soon realised that crop yields in Uganda declined under ...

Soil color could replace expensive chemical tests, helping farmers monitor fertility and carbon faster and more safely.