BBCNEWS BBC Wales Investigates June 4, 2024 02:39:00
Is absorbed by crops. the rest is extra. you're left with a difference of about 3000 tonnes of phosphorus that is above the crop requirement of what we would call a surplus. which is naturally very high, it's about 60% greater than the national average. fundamentally, if you have a surplus, you are too much phosphorus in your environment it is likely that you are going to have worse water quality. the data shows quite clearly, there are parts of the catchment where phosphorus levels are very high, if not a little bit too high. so those areas do not need phosphorus at the moment. they do not ne...