Tobacco collection of All-Russian research institute of tobacco, makhorka and tobacco products is unique and only in the world because of its quantity and composition. It has 4500 foreign and national sorts of tobacco, Nicotiana Rustica and wild species of Nicotiana variety from 70 countries around the world. According to sort breeding aims, compliant with agricultural demands for 20 year period (1994-2014), 15 000 sorts of tobacco, Nicotiana Rustica and wild species of Nicotiana variety were analyzed. 820 donor sorts with valuable properties were defined and the best of them were involved in breeding process. During national selection history on the base of institute’s world tobacco collection over 180 sorts and hybrids of tobacco were created by our breeders. In recent years the interest from farmers and other small plant growers in tobacco production is constantly raising. As some of them are from northern non-traditional for Russia tobacco growing regions there is necessity for more intense utilization of the world collection’s genetic resources
The article discusses the influence of conventional technology and the technology of direct seeding at different doses of mineral fertilizers on the growth, development, productivity and economic efficiency of winter wheat cultivation on the leached black soil of the Central Caucasus. It is established that the cultivation of winter wheat without tillage its vegetative mass, leaf area and the efficiency of the assimilation apparatus is significantly less than for sowing the traditional tillage technology recommended by scientific institutions in the region. It is caused by excessive seal of leached black soil, which was used in the study. Such a density of addition of black soils adversely affects the growth, development and yield of crops. As a result, the yield of winter wheat on the technology of direct seeding without fertilizers was 2.46 t / ha, which was significantly lower than for conventional technology, which received 3.21 t / ha. Adding fertilizers increased crop yield for both technologies, but it was significantly higher on the traditional technology. Despite the decline in production costs for the cultivation of winter wheat without tillage, higher profits and profitability were obtained using traditional technology
The article presents the results of diagnosis of soybean plants with sulfur, molybdenum and boron in a Western Ciscaucasia on leached chernozem (black soil). The soil testing has shown that the availability of sulfur in the experimental plots is low (2,10-7,02 mg / kg), molybdenum - average (0,20-0,28 mg / kg), boron - low to high (0, 22-0,63 mg / kg). The sulfur content was optimal in 2013 (2309 mg / kg), molybdenum - 2013 and 2014 (1.11 and 0.94 mg / kg) and the boron content was high (65,2-94, 1 mg / kg) in soybean plants. The soybean plants needed sulfur fertilizer in 2012 and 2014, molybdenum - in 2014, and boron fertilizers are not needed, according to the functional diagnosis. The results of various methods of diagnosis coincided with the response of soybean plants for foliar application: sulfur fertilizer increases the yield in 2012 and 2014 by 7.1 and 8.9 %, molybdenum also in 2012 and 2014 - by 6.0 and 10.0 %. Boron fertilizers in 2014 increased soybean yields (17.1%), despite the lack of need for soybean plants in Bor. So, the method of functional diagnostics is more accurate than chemical soil and plant diagnostics
The article represents the results of the experiments on biological activity of humits of different sorts. The object of research was humic preparation called Vermistar, which was obtained by vermiculturing, on the basis of brown coal. Humics are group of high-molecular substances which have high physiological activity. Humic substances stimulate all biochemical processes on all the stages of plant growth. They change the permeability of the cell membranes, increase activity of ferments, amount of chlorophyll and productivity of photosynthesis. Also humits are not toxic; they don’t have carcinogen and mutagenic effects, so we have a chance of getting environmentally friendly products. The experiment results show high biological activity of humic preparations. Usage of humic stimulates germination, the accumulation of vegetative mass, weight gain. The frequency of shoot has been increased by 17-32%. Height of shoots, roots and vegetative mass has also been increased
The article presents the results of the studies on the
effect of the processing of grape variety Saperavi with
a growth regulator called Vimpel with water soluble
and foliar fertilizers of new generation - Nutrivant plus
and Kelik potassium silicon, both in pure form and in
a tank mixture. Processing of bushes was performed
three times: after flowering, growth phase of berries
(berry of a pea), the beginning of ripening berries. We
used Vimpel drug and foliar fertilizers such as
Nutrivant plus and Kelik potassium-silicon, both in
pure form and in conjunction with Vimpel; it led to a
significant increase in weight of the bunch, bush crop
and planting yields. The smallest yield increase was
provided by Vimpel. However, the combined use of
this drug on a background of Kelik silicon- potassium
foliar fertilizer and Nutrivant plus led to a greater
increase in yield from the bush than when used
fertilizers only. Processing of bushes by Vimpel in
combination with a foliar application of Kelik
potassium-silicon not only led to a significant increase
in crop yields from the bush and plantations, but in
two cases of the three it contributed to a significant
increase of the mass concentration of sugars in the
juice of berries. Using Vimpel, together with Nutrivant
plus foliar application for two years out of three
promoted maximize yields (23.4 and 18.4%) with a
decrease in sugar content, and in one year - an increase
in the harvest of 10.4%, with a significant increase in
mass sugar concentration (1.92 g / 100 cm3 or 9.2%).
Thus, the processing of Saperavi grapes with a growth
regulator called Vimpel and water soluble foliar
fertilizers of new generation - Nutrivant plus and
Kelik potassium and silicon is an effective method of
increasing the yield and quality of Saperavi grapes
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
In the article we consider the influence of agricultural
technologies of cultivation of winter crops on
existence of various forms of heavy metals in an arable
layer of earth in the conditions and their accumulation
in grain production. The gross content of compounds
of copper in an arable layer of black leached soil is
above background values (maximum concentration
limit 1,5-1,7), a share of the fixed connections makes
75 %. The gross content of zinc exceeds background
value for chernozems (1,25 clark). The correlation of
the water mode of the soil and the content of mobile
compounds of heavy metals in an arable layer - a
straight line for Cu and the return for Mn , Pb, Cd and
Co. Supplement of an arable layer of earth with mobile
forms of copper, zinc and cobalt low, manganese -
corresponds to the average level. Speaking of the
degree of actual mobility the studied elements settle
down in sequence: Cd> Mn> Co> Pb> Zn> Cu.
Degree of potential availability decreases among:
Zn> Mn>Pb> Co> Cu. The existence of Mn,
Cu, Zn and Co in grain of wheat is lower than
maximum concentration limit, and accumulation of
Pb and Cd is higher than maximum concentration limit
in grain production for baby food for 10-15 %, that
increases individual risk of death to the maximum
permissible level
In the present article the main research results of
investigation of the means of pre-milking and postmilking
treatment of cow udder and dugs are presented.
The treatment of cow udder dugs produces great effect
on the milk quality, the incidence level of mastitis of
cows in the herd, extension and pathogenic agents
transmission from sick to healthy animals; and also
udder treatment provides hygienic protection of udder
dugs. Tree concentrations of detergent of chloride
dioxide were tested. Whereof, dilution of detergent with
concentration of 90 mg/l chloride dioxide proved
effective disinfective effect in pre-milking treatment of
udder dugs. The developed medication for post-milking
treatment of cow udder dugs presented high preventive
efficiency against mastitis and provided longer hygienic
protection of cow udder dugs after milking
In this article, an anthropogenic influence on natural
ecosystem such as an excavation of sand is discussed.
Investigations were done in Kuyar Forest District of
the Mari El Republic on a sandpit. The adjacent plot
of natural forest was taken as a control. For evaluation
the degree of environment transformation as a result of
sand excavation several indicators were used. As
indicators of physical soil degradation - thickness of
organogenic horizon and soil density; for assessment a
chemical degradation – content of main nutrients and
humus; as an indicator of biological degradation – the
level of active microbial biomass. Besides, a potential
phytotoxicity was estimated. The study proved:
physical and chemical parameters corresponded with
the fourth degree of soil degradation, at the same time,
biological parameters approximated to parameters of
soil from natural territory
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