Investigation of aerodynamic properties of organic granulated fertilizers

This paper provides the research results of granular organic compost fertilizers use and spread by standard fertiliser spreading equipment. For research were used two different size granular or-ganic compost fertilizers. There were investigated particle geometrical parameters and aerodyna-mic features of granular organic compost fertilizers, estimated critical particle speed, coefficient of flutter and others parameters. A theoretical model was developed which predicts the trajectory of individual fertiliser particles off-the-disc. The model presented herein requires validation with data obtained from spreading testsVytauto Didžiojo universitetasŽemės ūkio akademij