Name
Kravchenko Roman Viktorovich
Scholastic degree
•
Academic rank
associated professor
Honorary rank
—
Organization, job position
Kuban State Agrarian University
Web site url
—
Articles count: 62
The article reviews the results of studying the influence
of mineral fertilizers on the qualitative indices of the
Merlot grape variety in the Anapo-Taman zone of the
Krasnodar region. The technology of cultivation of
grapes on the experimental plot was in accordance with
the accepted for the given zone and culture.
Agrobiological work was carried out at the optimal
time and had a high quality of execution. Grape bushes
are laid in a 3.0 x 2.0 m pattern. Formation - a twoshoulder
horizontal cordon. On the bushes we formed
the same load of shoots and bunches. Scheme of the
experiment: option 1 – no fertilizers (control); option
2-superphosphate with a mixture of potassium salt
(P90K90) from the autumn; option 3 –nitroammofoska
(N120P120K120) from autumn; option 4 – ammonium
nitrate (N60) in early spring. Analysis of the results of
studies on the study of biological features of growth,
fruiting, yield and quality of Merlot grape varieties on the background of the use of mineral fertilizers shows
their high efficiency in the conditions of the AnapoTamanskaya
zone of the Krasnodar region and can be
recommended for use in production conditions.
Mineral fertilizers ensures the receipt of dry bulk wine
of superior quality control sample (without fertilizers)
the concentration of tartaric acid 17.3 25.1 percent,
phenolic compounds 17.1 – 40.0 %, and alcohol
content of 7.2 and 9.3 %, titratable acids 11.8 and 13.7
%, given extract by 17.4 %, with a decrease of the
mass concentration of total sulfur dioxide and pH. The
most effective is the introduction of NPK
(N120P120K120)
The article presents the results of the fertilizers use effect on dry wine materials produced from the Chardonnay variety, grown in the Anapo-Taman soil and climatic zone of the Krasnodar region, Russia. As a result of wine materials analysis, increase of tartaric acid was noted, with the autumn application of phosphorus-potassium fertilizers and the spring application of ammonium nitrate. At the same time, its optimum content was noted with nitroammophos. Also, the minimum concentration of malic acids was detected by the application of nitroammophos with potassium fertilizers. In its turn, early spring application of ammonium nitrate reduced the concentration of malic acid below the control sample (without fertilizers). It was revealed that the use of mineral fertilizers in this winemaking zone also contributed to a reduction of lactic acid in the must. At the same time, the application of nitroammophos (especially together with other mineral fertilizers), contributed to the accumulation of citric and succinic acids, as well as phenolic compounds. Moreover, the application of phosphate-potassium fertilizers in the autumn contributed to the accumulation, and, consequently, also to the increase in the content of phenolic compounds in the resulting must. In addition, the studied samples of wine materials contained high alcohol concentrations and low concentrations of sugars with volatile acids. At the same time, the maximum amount of alcohol exceeding its content in the control sample was revealed when phosphorus-potassium fertilizers were used together with nitroammophos fertilizers. It is also noted that the application of ammonium nitrate did not affect this indicator. As a result, the use of mineral fertilizers in the studied concentrations made it possible to prepare wine materials that contained a low concentration of sulfur dioxide, which is substantially lower than the harmful concentration for humans. In addition, increased concentrations of hydrogen ions in variants with the application of phosphate-potassium fertilizers have made it possible to reduce the number of iron tanates and the intensity of oxidation-reduction processes
The article reviews the results of studying the influence of mineral fertilizers on the uvological, yielding and qualitative indices of the Merlot grape variety in the Anapo-Taman zone of the Krasnodar region. The technology of cultivation of grapes on the experimental plot was performed in accordance with the accepted for the given zone and culture. Agrobiological work was carried out at the optimal time and had a high quality of execution. Grape bushes were laid in a 3.0 x 2.0 m pattern. Formation - a two-shoulder horizontal cordon. On the bushes, there was formed the same load shoots and bunches. Scheme of experience: option 1 – no fertilizers (control); option 2 - superphosphate with a mixture of potassium salt (P90K90) from the autumn; option 3 – nitroammofoska (N120P120K120) from autumn; option 4 – ammonium nitrate (N60) in early spring. Analysis of the results of the studies on the study of biological features of growth, fruiting, yield and quality of Merlot grape varieties on the background of the use of mineral fertilizers shows their high efficiency in the conditions of the Anapo-Tamanskaya zone of the Krasnodar region and can be recommended for use in production conditions. Autumn application of nitroammofoski (N120P120K120) provides an increase in yield by 68.3%, increases the yield of mash from a hectare by 76.7% and the collection of sugar by 97.6%. Autumn application of phosphate-potassium fertilizers (P90K90) and early spring application of ammonium nitrate (N60) also contributed to an increase in yields by 33.3 and 40.6%, respectively. On the output of the wort, these options are equal, and for the collection of sugar phosphate-potassium fertilizers exceed ammonia nitrate
The article presents the results of studies on the biological characteristics of growth and fruiting, as well as the yield of adaptive varieties of strawberries in the conditions of the Prikubanskaya horticulture zone of the Krasnodar region. The objects of study are new and promising varieties of strawberries: Zenga-zengana (k), Onda, San-Diaz. The experiments were performed using the method of randomized reps. In the experiment there are 3 options, in each there are three replications of 20 plants. Variants and repetitions are placed sequentially. Agricultural records of the growth and fruiting of strawberry plants were carried out according to generally accepted methods; statistical processing of research results was carried out using the analysis of a variance method described by B.A.Dospehov. The results of our research showed that Zenga-zengana bushes (control) turned out to be the tallest. In the Onda variety, the height of the bush is 2 cm less than in the control variety; and San Diez varieties are 4 cm, respectively. It should be noted that the most undersized plants require a smaller area of nutrition. It has been established that flowers pollinated a few days after their disclosure develop more rapidly into berries than those that were pollinated immediately after opening. Pollen in flowers of the first order is less than in flowers of the third or fourth order. The stamens of the first flowers are often underdeveloped, their pollen is released and germinates worse. In our experience, the average weight of fruits and the yield as a whole depends on the biological productivity of the varieties. Onda was the most fruitful variety, and the rest varieties were at the control level
The article presents the results of studies on the influence of the main tillage in the technology of cultivating winter barley on its agrophysical properties. The object of research was winter barley, sort Rubezh, the predecessor - winter wheat. Soil - heavy duty, low humus, typical leached chernozems. The studies were carried out in a stationary experiment on the basis of the experimental field of the Department of General and Irrigated Agriculture at KubSAU in accordance with generally accepted methods for experiments with grain crops. Scheme of experience (primary tillage): option 1 (A0) - dump plowing to a depth of 20-22 cm (control); option 2 (A1) - chisel for 20-22 cm; option 3 (A2) - disk peeling at 8-10 cm; option 4 (A3) - zero treatment (direct sowing). Based on the research, a general orientation is revealed in the technology of cultivating winter barley to reduce the agrophysical indicators of the soil throughout the growing season of the development of its plants while lowering the tension of its main processing. So, the density of the soil was minimal, and the structure and moisture of the soil, as well as the reserves of productive moisture were maximum on the option with dump plowing to a depth of 20-22 cm. Conducting deep loosening at the same depth (chiseling by 20-22 cm) somewhat worsened these parameters . Implementation of disk peeling in the main tillage (by 8-10 cm) contributed to the deterioration of these parameters. The option of zero tillage was in last place according to these indicators. And only before harvesting, zero tillage contributed to the formation of higher soil moisture and productive moisture reserves
There were reviewed the results of the study of the
dependence of main phenological phases of
development of corn hybrids of different maturity
groups of the selection of Krasnodar Research Institute
of Agriculture named after P.P. Lukyanenko in the arid
zone of Central Ciscaucasia (Ross 199, Ross 299,
Krasnodar 382 and Krasnodar 410) and the AllRussian
Research Institute of Corn (Mashuk 170,
Newton, RIC 345 and Eric), as well as early-middle
Rossiyskaya 1 from the changes of average daily air
temperature of planting dates and preplant seed
treatment by the preparation "TMTD-plus", containing
the growth promoter called Krezatsin in its
composition. The studies were conducted in
accordance with the thematic plan of scientific
researches of the department of crop and forage
production of Stavropol State Agrarian University. The
technology of maize growing on the experimental plot
corresponds to the standard technology for this area
and culture. The sowing was performed in three stages.
The first (early) sowing period was at t = + 7 ... +8 °
C. The second (recommended) – was at t = + 10 ... +
12 ° C. The third (later) sowing period was at t = +15 °
C. There was identified a high inverse correlation
between the average daily air temperature and the
duration of the intraphase periods of maize
propagation. Thus, at the shifting of maize sowing
dates with the second half of May on the second half of
April we have optimization of heat regime in the
generative period and rising of the efficiency of use of
thermal resources of the region. There was marked the
acceleration of development of corn seedlings when
the average daily air temperatures was up to 12 ° C at
the samples with the application of the disinfectant
TMTD-plus
There were reviewed the results of the study of the
dependence of main of phenological phases of
development of corn hybrids of different maturity
groups of selection of Krasnodar Research Institute of
Agriculture named. P.P. Lukyanenko in a zone of
sufficient moisture of Central Ciscaucasia (Ross 199,
Ross 299, Krasnodar 382 and Krasnodar 410) and the
All-Russian Research Institute of Corn (Mashuk 170,
Newton, RIC 345 and Eric), as well as early-middle
middle Rossiyskaya 1 from the change of average daily
air temperature at different dates of sowing and preplant
seed treatment by the preparation "TMTD-plus"
containing the growth promoter called Krezatsin in its
composition. The studies were conducted in
accordance with the thematic plan of scientific
researches of the department of crop and forage
production of Stavropol State Agrarian University. The
technology of maize growing on the experimental plot
corresponds to the standard technology for this area
and culture. The sowing was performed in three stages.
The first (early) sowing period was at t = + 7 ... +8 ° C.
The second (recommended) – was at t = + 10 ... + 12 °
C. The third (later) sowing period was carried out at t
= +15 ° C. There was identified a high inverse
correlation between the average daily air temperature
and the duration of the intraphase periods of maize
propagation. Thus, at the shifting of maize sowing
dates with the second half of may on the second half of
April, the optimization of heat regime in the generative
period and rising of efficiency of use of thermal of
resources of the region. There was marked the
acceleration of development of corn seedlings when
the average daily air temperatures was up to +12 ° C
at the samples with the application of the disinfectant
TMTD-plus
There was given a review of the results of the study in
the conditions of sufficient moisture of Central
Ciscaucasia, the influence of planting terms and
presowing seed treatment by the drug called "TMTDplus",
containing Krezatsin growth stimulator in its
composition, on the development of corn hybrids of
different maturity groups of the selection of Krasnodar
Research Institute of Agriculture named after P.P.
Lukyanenko (Ross 199, Ross 299, Krasnodar 382 and
Krasnodar 410) and the All-Russian Research Institute
of Corn (Mashuk 170, Newton, RIC 345 and Eric), as
well as middle- maturity population Rossiyskaya 1.
The studies were conducted in accordance with the
thematic plan of scientific researches of the chair of
crop and forage production of the Stavropol State
Agrarian University. The soil surface of the
experimental station of StavrGAU was presented as
leached black soil. The technology of growing of
maize on the experimental plot corresponds to the
standard one for the present area and cultivar. The
predecessor is winter wheat. Sowing was performed in
three terms. The first (early) sowing term was carried
out at t = + 7 ... +8 ° C. The second (recommended) -
when t = + 10 ... + 12 ° C. The third (later) sowing
time was carried out at t = +15 ° C. The plant density:
early-maturing hybrids – 70 thousand pieces/ha, is
mid-maturing ones – 60 thousand pieces/ha, middleripe
– 50 thousand piece/ha, middle-later ones – 45
thousand pieces/ha. The scheme is single-row, with
spacing of 70 cm. The application of the studied drug
TMTD-plus helped to reduce the growing season of
maize plants for one - four days. Thus, changing the
sowing terms of maize hybrids and populations, we
can largely control the development of plants changing
the length of the growing season to two weeks and
form a harvesting conveyor, thereby reducing the
intensity of field work
There was given the review of the results of the study
in the conditions of the Anapa-Taman zone of the
Krasnodar region of the influence of the treatment of
vines of Saperavi of lignohumates of the grade "В"
(“LG-B Bio”, “LG-B Best Bio”, “LG- Best L”) on the
quality of must and wine materials. The technology of
the grape cultivation on the experimental plot
corresponded to the adopted technology which is used
in the JSC "Pobeda" of Temryuk District and was
widely accepted for the keeping of fruit-bearing
plantations of the zone of uncovered viticulture.
Agrobiological works were carried out at the optimum
terms and were of high quality. Vines of the third- year
of life, embodied by the scheme in 3,0 x 1,5 m. The
forming is a one-sided Guyot with a height of the trunk
in 60 cm. On bushes there was formed the same load
shoots and clusters. There were carried out the
treatments of grape leaf surfaces by the solutions of
lignohumates twice: the 1st – before the flowering and
the 2 nd in the beginning of the formation of berries (in
20 days after the first one). The spraying was carried
out in the early morning hours. The accounting of the
grape harvest and the sampling for the determination of
the quality of must and wine materials (10 kg per each
type) was conducted in September 20, 2012. The
technological and physical-chemical analyses were
carried out in the shop of mini winemaking and in the
accredited testing laboratory of the grape processing of
the scientific center of the winemaking SCSRIHGG of
the RAAS. The preparations "LG-B Bio", "LG-B
Super Bio" and "LG-B Best A" as grape growth
regulators have the equal and stable effect
There was given the review of the results of the study
in the arid zone of Central Ciscaucasia, the influence
of planting terms and presowing seed treatment by the
drug called "TMTD-plus", containing the growth
stimulator Krezatsin in its composition, on the
development of corn hybrids of different maturity
groups of the selection of Krasnodar Research Institute
of Agriculture named after P.P. Lukyanenko (Ross
199, Ross 299, Krasnodar 382 and Krasnodar 410) and
the All-Russian Research Institute of Corn (Mashuk
170, Newton, RIC 345 and Eric), as well as middlematurity
population Rossiyskaya 1. The studies were
conducted in accordance with the thematic plan of
scientific researches of the chair of crop and forage
production of the Stavropol State Agrarian University.
The soil surface was presented as southern black earth.
The technology of growing of maize on the
experimental plot corresponds to the standard one for
the present area and cultivar. The predecessor is winter
wheat. Sowing was performed in three terms. The first
(early) sowing term was carried out at t = + 7 ... +8 °
C. The second (recommended) - when t = + 10 ... + 12
° C. The third (later) sowing time was carried out at t =
+15 ° C. The plant density: early-maturing hybrids –
70 thousand pieces/ha, is mid-maturing ones – 60
thousand pieces/ha, middle-ripe – 50 thousand
piece/ha, middle-later ones – 45 thousand pieces/ha.
The scheme is single-row, with spacing of 70 cm. The
application of the studied drug TMTD-plus helped to
reduce the growing season of maize plants for one -
two days. Thus, changing the sowing terms of maize
hybrids and populations, we can largely control the
development of plants changing the length of the
growing season to two weeks and form a harvesting
conveyor, thereby reducing the intensity of field work