As a result of the research a new criterion for assessing the efficiency of technological processes for organic fertilizers applying was developed. This criterion was termed as the level of organic provision for agricultural lands which characterizes the level of providing by organic fertilizers the agricultural lands of a territory relative to the calculated applying dose; it varies from 0 to 1. The qualitative and quantitative factors which have an impact on the level of organic provision were revealed: type of resource and the quantity of manure for producing organic fertilizer; type of technology for manure processing; type of produced organic fertilizer; area of crop growing; applying dose of organic matter. The nomogram of dependence for yield, gross harvest, and profitability of crop growing in existing rotations from the level of organic provision was developed. Using the nomagram, it was determined that while the level of organic provision was increasing from 0 to 1, winter wheat yield increased from 3.80 to 4.95 t/ha. It is established that profitability of winter wheat growing for grain without organic fertilizers is 52.6 %; with increasing of applying fertilizer dose up to 4 t/ha profitability increases to 68.3 % that is by 23,4 %. When the level of profitability is less than one, the loss of winter wheat yield is observed. This loss is proportional to the under-applying of organic fertilizers to the required norm. When the level of organic provision is equal to 0.5, the loss of the yield is 0.7 t/ha, profitability is 60.5 %. The technological and economic criterion “level of organic provision for agricultural lands” enables to generate close interdependence of crop yield to production profitability as well as to analyze and estimate the losses from their gross harvest shortfall.
Keywords: technological and economic criterion, organic fertilizer, level of organic provision, crop yield, profitability, nomogram, gross harvest.
