A ban on autumn muck-spreading is being reviewed by ministers as part of efforts to prevent a slump in food production sparked by a global shortage of fertiliser.
Farmers have called on the UK Government to change the rules over fears that soaring gas prices could lead to some food shortages and hit their profits.
The National Farmers Union told the Telegraph that farmers should be able to use manure as an organic alternative to artificial fertiliser, for which gas is a key ingredient, as it becomes more scarce.
The cost of fertiliser, essential for growing crops and grass for livestock, has quadrupled in the past year in some instances following sanctions on Russia.
The NFU's wide-ranging proposals were shared with the Department for Environment, Food and Rural Affairs last week and discussions are ongoing.
They also asked for gas supplies to be "preserved, protected and prioritised" for food production if food security was at risk.