<p>Patent applies to biodegradable composites and can be used in agriculture for production and application of preparative forms of agrochemicals.Matrices in the form of films containing pesticides and other agrochemicals are produced from biomass of biodegradable polymer polyhydroxybutyrate (PHB) for plasticised materials. They are cast out of a biomass solution in chloroform with the necessary additives (pesticides and plasticisers) added and thoroughly dispersed.These matrixes ensure local and purposeful utilisation of applied agrochemicals via prolonged extraction of chemicals from the hydrophobic biocomposite films undergoing gradual biological degradation in the soil. The speed of degradation can be regulated by changing the composition of biocomposites and thickness of the film. Degradation products of biocomposite films are harmless for animals and the environment. The components of PHB biomass can serve as additional fertilisers.</p>
