A biodegradable polymer spray that captures and channels water toward crop seeds may help protect farms from reduced rainfall. Researchers at Murdoch University have tested the product, called SMART SPRAYS, on Western Australian properties and plan to create a commercial version within several years. Western Australia’s large agricultural sector faces growing drought linked to climate change, which threatens yields, food supplies, and farmer well-being. In the Wheatbelt region alone, winter rain has fallen by about 20 percent over the past 25 years. Project leader Daniel Murphy noted that improving water access near roots could raise output despite drier conditions. Research officer Cheryl Rimmer explained that the polymer, produced by natural bacteria, reduces evaporation by directing rain from ridges into planting furrows. Ph.D. student Samantha Viljoen added that the material breaks down fully and avoids synthetic residues or microplastics. Local grower Andrew Crook stressed the need to retain every drop, especially as summer rains increase while winter totals decline. The project received support from several agricultural groups. With further funding, the team will now refine the spray for broadacre use.
