This graph shows the amount of each measured nutrient in the pasture sample we provided to the laboratory. It was from this analysis in particular that the fertiliser rep recommended we apply some Molybdenum this season, primarily because it may be limiting the growth of clover in our pastures.
Interestingly, all past pasture sampling has shown an excess of Iron. Our animals always show a Copper deficiency when we test their livers and we concluded that the Iron was probably the element which interfered with their absorption of Copper. Both Molybdenum and Sulphur will also affect Copper levels in ruminants. Check what type of sampling will give you the information you're looking for. In this case we did a general sample of the available plants, primarily kikuyu and clover, in the autumn.