Tsygoda V. The effectiveness of depth of autumn plowing under sugar beets against the background of long-term application of various fertilizer systems on the podzolized black earth soil of Right Bank Forest Steppe zone

The depth of against the back ground of long-term application of various fertilizer system in the field rotation and its influense on the fertility, yielding capacity, and quality of sugar buth. To establish the efficacy of autumn plouring of pondzolized black earth soil under sugar buts against the back ground of long-term application of various fertilizer system in the field rotation. Field, laboratory, ecoconomical, matimatical - statistical. In the conditions of Right Bank Forest Steppe zone Ukraine the peculiarities of changing the agrophysical, agrohemical, and biological indices of soil fertility under the influence of deep plowing about 40 cm is established. It is offered to apply periodically deep plouring under zugar beet on the podzolized black earth clay loam. With the aim of improving agrophizical and phisiochemical indices of fertilizer in field orop rotation, decreasing weed infestation and increasing of zugar beet yield it is aderisable to condact deep autumn plowing about 40cm dee p in one field with obligatitory applying row phosphorus fertilizers at 15-20 kg/ha P2O5. The increasing of deep plowing up to 40 cm increases the yielding capacity of sugar beets to 22-51 cwt/ha and also increases the sugar production at sugar refineries to 3.6-7.5 cwt/ha. The project hasundergone industrial tests and has been introdused on the farms of Chercasy, Kirovograd and Vinnitsya regions on the area of 40-75 ha for 1996-2000. The annual economic efficiency is 245-280 hrv per hectare. Agricultural production.