The article discusses the issues of the choice of technology to cultivate perennial grasses, by way of example of technologies used in Russia and Kazakhstan. In many ways, they are determined by the rational choice of manufacturing scheme and the corresponding set of used machines and units. Herewith, the governing factor is the prime cost and the quality of the commercial production, and the need to ensure the least cost per unit of material and energy resources to produce perennial grasses adaptable to a specific farm. This approach proposes the implementation of a multidimensional problem, where, the conditions and properties of soil, mineral fertilizers and seeds are also taken into account in addition to the phasing and a list of performed working operations. It is reasonable to implement such problems by using graph-analytic or topological methods to determine and assess indicators, which are based on the application of a block diagram and an operator scheme for presenting crop cultivation technology. Such approach makes it possible to establish the factors influencing the technological process; to present visually interaction of the processes and phenomena being under study; to define the significance of the performed working operations; to develop a model of phasing optimization that allows justifying the optimal structure of the technological process to cultivate perennial grasses.