EN
The most important for the development of agrophysical research seems to be the following thesis of Professor Haman: "All of the objects and materials we deal with in agricultural sciences are nonuniform and three-phases (gas + liquid + solid phase) and all three phases evidently take part in the process of deformation and the equations that describe it". Prof. Haman very often stressed the role of the filtration processes rate of liquids and gases responsible for volumetric and structure deformations of the solid phase, which had decided of shearing deformations. Most of the research, carried out since founding the Institute of Agrophysics of the Polish Academy of Sciences, had been inspired by Prof. Haman. He had directed the research towards using the physical knowledge to explain the phenomena of creeping and deformation of biological materials. It allowed us to step away from the classic mechanics of continuous objects. It also made it possible to create discrete theoretical and experimental methods, which are adequate for these extremely complex deformative bodies.