The organic certification body, the Soil Association, is warning it may withdraw from the farmed salmon sector unless higher standards are met. The organisation says while current standards are being satisfied, that's not driving the improvments in the industry that they want to see. They cite high fish mortality, unacceptable levels of sea lice, and the use of harmful chemical treatments. The industry body says its salmon farmers are committed to the highest standards of fish welfare and environmental responsibility.
As we take a closer look at soils all this week, today we meet two Sheffield university researchers who are investigating the properties of micorrhizal fungal networks, which bind together millions of micro organisms - the protection of which many see as the solution to soil health.
And as the climate becomes more extreme, the management of water in farming will become more vital than ever. With this in mind, a pilot study has been taking place in Shropshire to assess how technology can help farmers pre-empt risks from flooding and drought. Scientists have even developed an app to give landowners a better idea of what they might face.
Presented by Anna Hill and produced by Sally Challoner.