Factors shaping the productivity of land in private farms with different kinds of production

In the article the authors perform the analysis of the influence of the area of farms, natural conditions, personal traits of farmers-heads of farms and the equipment with turnover means and durable goods on the productivity of land in private farms specializing in breeding cattle, sheep, hogs, in growing plants and in private farms with diversified production. The analysis was based on the questionnaire materials collected in 1982 and concerning 1892 private farms from the whole territory of Poland chosen by the random method. In the study the method of stepwise linear and parabolical regression was applied, with the value of net final production in thousands of zloties per one hectar of farming land as the dependent variable. The study indicates that specialization of production conditioned to a considerable degree the intensity and the direction of influence of the analysed factors on the productivity of land.Digitalizacja i deponowanie archiwalnych zeszytów RPEiS sfinansowane przez MNiSW w ramach realizacji umowy nr 541/P-DUN/201