Technical and economical analysis of harvesting and ensilaging of corn grain.

Elaborated test results concerning two technologies of corn grain harvesting using grain harvesters. One technology called ZKP was using a mill crusher unit with direct filling system of a plastic bag and the other one was using a mill crusher connected to a silo press and was called ZKG. Provided research and calculations enabled evaluation of the values of critical coefficients, which were the following: unitary fuel consumption and unitary labour cost requirement. Because of different corn grain yields, these values referred to a unitary area of crop and also unitary mass of corn grain. It has been proved that the total costs of harvesting and conservation of corn grain with the technology ZKP equalled 321.83 € ha -1 , but the same costs with the technology ZKG equalled 245.69 € ha -1