Importance of turning

The importance of turning the windrows

One way to help control the odours (although not eradicate them) is to regularly turn the piles of compost or windrows.

This requires spaces between the windows to allow a tractor or ‘loader’ to pass alongside as shown in the Environment Agency Photographs below:

Google Earth shows the approach adopted by Southcroft Farm, Old Sodbury in 2005 – pack the windrows onto the pad ‘with no space between the footings’ an approach which the operators openly seek approval for in their new 2008 planning application – PK08/0458/F.


How then can the windrows be turned?

Why do operators adopt such an approach?

More compost on the pad means more money in the bank.

What is the outcome?

Without regular turning to introduce oxygen the piles of compost or windrows turn anaerobic. This means they become extremely smelly – remember the sileage and vomit description.

In addition the piles produce methane. This is 20 times worse than carbon dioxide at trapping heat in the atmosphere and rather defeats the objective of composting in the first place.