What Happens to Agricultural Plastics After the Growing Season?

When we talk about irrigation, most conversations focus on water efficiency, crop performance, and system design.

Much less attention is given to what happens after the growing season ends.

Once drip tape\film\pipe has been removed from the field, where does it go? How is it collected, transported and recycled?

And perhaps more importantly, how can growers, irrigation suppliers and recyclers work together to make the entire system more sustainable?

Over the past few weeks, I've had the opportunity to speak with growers, irrigation specialists and agricultural plastic recyclers across the UK. One thing has become increasingly clear:

The challenge isn't just recycling agricultural plastics. It's creating a practical circular system

Recycling Starts on the Farm

Although drip tape/film is primarily made from polyethylene (PE), recycling it is far from straightforward.

After a season in the field, it may be covered with:

• Soil and sand

• Moisture

• Plant roots and crop residues

• Fertiliser deposits

• Clips, connectors and other irrigation components

Unlike household plastics, agricultural plastics require specialist cleaning and processing before they can be recycled.

Collection Is Often the Biggest Challenge

Recycling doesn't begin at the recycling plant. It begins on the farm.

Before used drip tape can be recycled, it must first be:

• Removed from the field

• Separated from other plastics

• Stored correctly

• Bundled efficiently

• Transported to a recycling facility

Whether recycling is economically viable depends on factors such as collection volume, transport distance, soil contamination, labour costs.

In many cases, sufficient recycling capacity exists, yet the quantity of material actually collected remains far below the amount originally used.

It is equally a logistics and coordination challenge.

Not All Agricultural Plastics Are the Same

At the end of the season, growers may have to deal with several different plastic products, including:

• Drip tape

• PE mainline pipe

• Layflat hose

• Mulch film

• Greenhouse film

• Valves and connectors

Each material has different characteristics and recycling requirements.

Better sorting at farm level can significantly improve both recycling efficiency and the value of recovered material.

Recycling Alone Is Not Enough

Collecting, cleaning and processing used plastics is only part of the story.

Recyclers also depend on stable downstream demand for recycled materials.

If recycled polyethylene cannot compete economically with virgin plastic, or manufacturers are reluctant to use recycled content, recovered material may struggle to find a market.

In other words, the challenge is:

Can we create sustainable demand for recycled agricultural plastics?

Building a circular economy requires both effective recycling and commercially viable end-use markets.

For the UK agricultural sector, developing products that incorporate recycled agricultural plastics may become just as important as improving collection systems.

Should Irrigation Suppliers Take More Responsibility?

Traditionally, irrigation suppliers have focused on flow rate, pressure, wall thickness, durability and installation cost. But the future of irrigation may involve thinking beyond product performance and considering the entire product lifecycle.

No single organisation can build a circular system alone. Growers, installers, suppliers, recyclers, each has a role to play.

As climate change places increasing pressure on water resources, discussions about irrigation should perhaps extend beyond water efficiency alone.

They should also include what happens after irrigation products leave the field.

I'm increasingly interested in how irrigation, agricultural plastics and recycling can work together as part of a more resilient agricultural supply chain.

Efficient irrigation shouldn't end when the water stops flowing