EN
In the paper, common relationships among agricultural income, final production and reserves of agricultural and non-agricultural products were defined in individual agricultural farms. Only 31% of the variability of agricultural income in individual farms was explained by the variability of average values of non-agricultural products´ reserves, which is a rather small relationship. The increase of agricultural lands appeared with the growing value of reserves altogether. At the same time, the increase in value of plant and animal production by 1 PLN was associated with a very similar increase in the general value of reserves, a bit higher in plant production. The variability of cereal reserves was explained by the cereal reserves at the beginning of the year, the area of cereal growing, the number of large cattle and pigs´ units and the average cereal crop. Moreover, the variability of potato reserves was explained by potato reserves at the beginning of the year, the potato crop and area of potato growing as well as the number of work-hours which family members and their guests had spent on farm labor. The variability of final gross production per 1 hectare of agricultural land (AL) was explained by the value of agricultural machines and tools, the expenses of plant and animal production, the average state of agricultural reserves, the average state of non-agricultural reserves and an average cereal crop.