Moysiyenko V. The Agroecological Principles of Improving Fodder Production in Ukraine's Polissya

Object - the processes and regularities of forming meadow and sown agrophytocenoses through the improvement of the field and meadow fodder production in Polissya with the aim of obtaining high-quality eco-safe feeds. Aim - the scientific substantiation and development of the agroecological basis for improving fodder production in Polissya. Methods - field, calculation, chemical, calculation and comparison, mathematical statistics, dispersion correlation, regressive. Novelty - the theoretical substantiation and ways for intensifying the field and grassland forage production. It also solves complex the problem of increasing the output of forage and that of fodder protein through creating agricultural and improving native agrophytocenoses under the conditions of Ukraine's Polissya. The dependence of the yielding capacity of major fodder crops upon agrometeorological factors, a storage period as well as upon organic and mineral or organic fertilizer application systems has been determined. The technique for prognosticating the forage crop output has been developed. The productivity of the fodder crop rotation and the efficiency of filling it with interplanted crops have been evaluated. The efficasy of mowing, pasture and mowing and pasture regimes of using sown perennial grass stands through the selection of proper grasses has been determined. As a result of taking stock of the fodder-producing areas in the radionuclide contaminated zone, the assessment has been made - for the first time in the region - as to their present-day ecological state. The effect of improvement methods on the ecological state and productivity of mowing and pasture phytocenoses on the radionuclide contaminated territories have been revealed. The "green conveyor" models for dairy cows kept in the contaminated areas have been developed, the radionuclide activity concentration being taken into consideration.