Agronomy is the application of various soil and plant sciences to soil management and crop production. To advise us on such matters we employ the services of John Buchan, an excellent agronomist who specialises in organic viticulture.
It's important to recognise that plant nutrition is a balancing act, as over application of any single nutrient can cause antagonism with other nutrients. Our priorities for this autumn and next spring will be improve the levels of Magnesium, Manganese and Iron, which are still very low.
As can be seen on the examples above, the leaves on some of the vines are already showing signs of these deficiencies.