Ayrshire is one of the most agriculturally fertile regions of Scotland. Potatoes are grown in fields near the coast, using seaweed-based fertiliser, and in addition the region produces pork products, other root vegetables, cattle and summer berries such as strawberries are grown abundantly. The area used to be heavily industrialised, with steel making, coal mining and in Kilmarnock numerous examples of production-line manufacturing, most famously Johnnie Walker whisky.