Karas' A. 3. Apple growth and fruit-bearinq depending on the methods of the preplanting cultivation of the soddy weakly - podzolized sandy soil in the Ukraine's Polissya.

Objects - are processes of growth, productivity and fruit guality of the apple cultivars Rubinowe Duky and Spartan on the Antonivka zvychaina seedlings depending on the soddy weakly-podzolized sandy soil preplanting preparation method. Purpose - ist to establish the most effective methods of the above mentioned soil preplanting preparation with a sandy stratum depth of over 3 m and substantiate the possibilityof its use for apple orchards on the basis of the estimation of the uoot system development, tree growth and fruit - bearing, fruit guality and storeability as well as economic and energetic efficiency. Methods - are field, laboratory - analytical, mathematico-statistical and economico - calculative. Novelty - lies in the fact that the local, trench and deep ploughing methods of the soddy-weaklypodzolized sandi soil preplanting preparation have been studied complexly and estimated energetically for the first time in the Ukraine's Polissya as well as the peculiarities of the researched crop on theseed rootstock growth, fruit - bearing and its fruit guality have been determined depending on the preplanting cultivation technigue. Results of researches - are of great importance for the seientific and practical horticulture and applied in certain farms/ They can be used for solving the problems of the apple orchards productivity increase on soddy-weakly podzolized soils in farms of different property forms in the investigation zone/ Branch - gardening .