One of the applied problems of decision-making under conditions of uncertainty, called tasks of making weakly structured decisions, is considered. The essence of this task is to choose the most acceptable variety of cotton from a given set of crops, providing optimal values for agrotechnological parameters (yield, length and strength of fiber, oil content, etc.) in different initial conditions: sowing, cultivation, growing and harvesting. The initial conditions are of a non-quantitative, incomplete, linguistic nature (collectively referred to as fuzzy source information) and are represented in the form of logically interconnected linguistic expressions. Â