Scientific Journal of KubSAU

In the article we present data of researches on bio productivity of forest plantations on sand-shell rock soils

The article presents the data of many years of research on resilience, durability and natural renewability of forest park plantations on sand and shell soils of the Eastern Azov

The article presents the data of 40-year-old variety-trial cultivation of hybrid black poplar and balsamic sections, as a result of which addressed issues of selection range of appropriate varieties, their cultivation technology, aspects of agrotechnology and protection against pests. At the same time, it absorbed and non-forest land reclamation funds, in particular sandy and shell, lowhumus, floodplain soils. As a result, the five-year variety trials found that under the conditions of the Eastern Azov on humus shell rock underlain by low-mineralized groundwater on accessible depth for roots (up to 150 cm), the most highly productive and are stable clones of Euro-American poplar: Brabantika-175, Sanrau-59, a Moshnyi-236 and 195 , Bahel, ZS-33 Vernirubens, 60001/1, Caroline-162. In terms of growth, they are superior to the local Canadian poplar and other varieties of poplars. Resistance to environmental and biological factors of the environment most highly productive species and varieties of poplars are much higher than the low productivity. Culture of poplar planting might create unrooted plants directly on the silvicultural area, which reduces the cost of rooting plants at the nursery, their digging and transportation and provides a high survival rate. Culture of poplar are used for the afforestation of poor sandy forest-steppe zone arrays, often introduced as the main breed at shelterbelt afforestation

The article presents long-term studies of afforestation on the Taman Peninsula. The directions of improving the ecology of the peninsula are considered by increasing the total biomass of the biogeocenosis of the given region by creating forest plantations, increase of forest cover and involvement of non-generating land in the economic circulation. Practical agro-forest-meliorative aspects of development of a specific category of nonproducing lands are presented. The basic agrotechnical methods are recommended at creation of forest plantations. The analysis of the state of forest plantations on the unique site of the Taman Peninsula is given - it is a tract of Sad Yakhno

The work is devoted to studying the nature of the influence of individual abiotic factors of the southern territories of Russia on the features of the formation of an economic apple yield in adjacent years and the justification of the possibility of adjusting the course of this process in adverse environmental conditions. The studies were carried out in 2018-2019, which are distinguished by the manifestation of weather anomalies in the summer-autumn period. Field experiments were performed at the farms of the Kuban horticultural zone on soils suitable for planting fruit stands: leached and typical chernozems. The features of the development of plants of apple trees of winter varieties Kuban crimson and Fuji on the stock M9 were studied. In the experiments, an option is provided using foliar treatment of plants with Pomaset fertilizer. The effectiveness of the formation of the economic apple crop depends on the biological characteristics of the used pomological variety, as well as the temperature and moisture conditions during the growing season of the plants. Soil conditions do not significantly affect the course of this process. The probability of losing the potential apple crop at the XII stage of organogenesis (pre-harvest decay) under the influence of abiotic summer stressors: high air temperatures and water deficiency is noted. With the manifestation of extremely high air temperatures in late summer and during the autumn months, a significant increase in the duration of vegetation of various (especially strong-growing) apple varieties was recorded, causing a shift in the process of differentiation of generative buds (stages III-IV of organogenesis) to a later date, and, as a result, - decrease in potential plant productivity in the next season. With the manifestation of abnormal weather conditions, the prospects of foliar treatment of trees in the second half of the growing season with Pomaset fertilizer, which optimizes the fruiting of the apple tree in adjacent years, are shown. At the same time, the fruit yield in the current year is increasing by 9-14%, and in the next season - by 7-10% in comparison with the control values