Why retain soil nutrient reserves?

The Potash Development Association (PDA) is emphasising the importance of maintaining soil nutrient reserves – particularly phosphate (P) and potash (K). Crops take up very different amounts of P and K during growth, but they all need a readily available supply in the soil at key times during the season. For potatoes, two-thirds of the […] The post Why retain soil nutrient reserves? appeared first on Agriland.ie.