Name
Dobezhina Svetlana Vladimirovna
Scholastic degree
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Academic rank
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Honorary rank
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Organization, job position
State Research Institution All-Russian Scientific and Research Institution of Floriculture and Subtropical Crops of the Russian Academy of Agricultural Sciences
Web site url
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Articles count: 5
Increasing of tea production in the foothills of
Adygea should be based on potential soil properties
suitable for tea plant. The goal was achieved using
modern methods of soil evaluation of tea plantations.
The evaluation criteria were the following
agrochemical and agro indicators: soil acidity (pH
KCl); hydrolytic acidity; the sum of exchangeable
bases; bases saturation; granulometric composition. It
was found that the soil under tea plantation in
Adygeya classifies as brown forest poorly
unsaturated with the level of potential fertility rated
as satisfactory (bonitet rating 40-60). However, the
low supply of nutrients in the layer 0-40 cm:
phosphorus (19,04 ± 2,42 mg / 100 g soil), potassium
(17,70 ± 1,60 mg / 100 g soil) and a sufficiently high
degree of saturation of soil bases in the layer of 50-
100 cm (67,10 ± 11,67%) in combination with a soil
moisture deficit determine their low productivity of
16,0 ± 5,0 kg / ha, whereas their potential
productivity of 30-50 t / ha. The development of
scientifically grounded, targeted ameliorative and
agro-technical measures (irrigation, nutrition systems
using physiologically acidic forms of nitrogen and
potash fertilizers that reduce the degree of saturation
of the soil bases) will help to increase the effective
soil fertility and allow the tea plants reach its
biological potential and achieve predicted
productivity in Adygea region
Such agrochemical and agrophysical properties of soils as base saturation degree, number of fine sand and dust fractions, as well as of physical clay limit the tea crop productivity in the Maykop region and in damp subtropics of Russia. Multiple regression models of their close influence on tea plantations productivity have been obtained
The influence of climate factors on adaptiveness of Actinidia deliciosa strange cultivars is ascertained in damp subtropics of Russia. The basic limiting factor of its cultivation is precipitation quantity during flowering phase and fetal maturity
The main criteria in assessing the adaptive capacity of Actinidia deliciosa (kiwi), cultivated in Russian subtropics were yield of the introduced cultivars, as well as ecological (stability and periodicity of fruiting) and biological indicators (resistance and periodicity of fruiting). The studied nature of the way Actinidia cultivars react to the constantly changing weather conditions during the period from 1998 to 2011 will help to optimize the placement of the crop in subtropical zone, and use natural resources for its unique climatic properties of Russian territory in a sustainable way
Peach fruit is much demanded worldwide. The
success of its cultivation depends on the optimal
plant placement of all the huge biodiversity
considering the cultivar demands. The northern
boundary of the peach cultivation passes through the
Kiev-Kharkov-Rostov-on-Don, Maikop, Nalchik,
Grozny, Astrakhan (Witkowski, 2003). However,
because of extreme temperatures there are almost no
suitable areas for Peach crop cultivation in these
borderlands, in the Krasnodar and the Stavropol
regions. From the other hand, extreme temperatures
for peach cultivation in the humid Russian subtropics
were not observed. Spring frosts till -5 ° C were
observed in 2004, 2014. However, the cultivar
productivity in the region influenced by the duration
of low temperatures (7,2 ° C and below) that were
observed from December to March. The amount of
low temperatures for each cultivar was established
using the highest coefficient of yield determination,
depending on the temperature, amount of
precipitation and the "cooling unit." The yield of
peach cultivars is closely linked with the abovementioned
agro-climatic conditions during the
flowering period. Paired correlation coefficients of
yield with precipitation and with temperatures (for
most cultivars) were negative, and since they are
unregulated value, the flowering phase is crucial for
peach culture in the Russian subtropics