The article is devoted to the estimation of the
dependence of perennial grass herbage’s productivity
on the dose and distribution of nitrogen fertilizers
during the vegetation, as well as from the dynamics of
the species composition by years of use. It was
revealed that for cocksfoot-timothy grass mixture an
increase in the rate of nitrogen fertilizer for every 10
kg of active ingredient leads to an increase of yield by
0.27 tons/ha. The selection of components of grass
mixtures and rational fertilizer doses forms the herbage
which provides a yield of about 7,0-12,0 tons/ha of dry
mass and 58,1-99,6 GJ of energy exchange. It is
established that competitive relations in grass mixtures
are exacerbated with increasing doses of fertilizers.
The timothy grass develops successfully in a mixture
with the cocksfoot with a low level of mineral nutrition
(N80). A high level of mineral nutrition speeds up the
formation of single-species herbage - the cocksfoot.
Meadow fescue grass provides sustainable yields on
medium and high backgrounds of mineral fertilizers in
combination with the cocksfoot. Recommendations for
a nitrogen dose of more than 200 kg per hectare for
fertilizing mixed grass crops with the cocksfoot and
about 100 kg per hectare for clover-cereals mixtures
without cocksfoot are suggested
Sorghum is cultivated in many countries of the world
on around 50 ml hectares. The main producers of
sorghum are India, Nigeria, Sudan and the USA.
Sorghum comes from equatorial Africa. India and
China are the secondary places of origin and formation.
The USA achieved great success in breeding, seedgrowing
and agro technologies of grain sorghum. In the
country sorghum occupies 14.4% of the world amount
of sowing areas; the gross yield is 40%. Sorghum
breeding on Don was started by E.S. Yakushevsky in
1938. In 1963 after a long break the work was restarted
at the Zernograd Breeding Station headed by Ya.I.
Issakov. At present the amount of sowing areas for
sorghum is constantly increasing in RF (220.3 thousand
ha in 2015). It occurs due to aridity of climate and more
frequent use of the crop as insurance. Besides, the
development of white kernel varieties gave an
opportunity to use sorghum for starch and spirit. There
are 221 varieties and hybrids of sorghum registered in
the State List. The main directions of breeding work
with grain sorghum are early maturity, suitability for
mechanical harvesting, productivity and grain quality.
The ARRIGC developed the white kernel early
maturing varieties ‘Velikan’, ‘Zernogradskoe 88’,
‘Ataman’ without necessity to be dried after harvesting,
with productivity of 8 t/ha. The main directions of breeding work with sweet sorghum are early maturity,
high intensity of initial growth, low height, resistance to
lodging, high productivity and quality of green chop.
The ARRIGC developed the varieties for fodder use
(‘Listvenit’), for spirit and treacle (‘Debyut’ and
‘Zernogradsky Yantar’). Sorghum due to origin and
varietal diversity even in dry and hot parts of the world
allow obtaining stable, high yields of grain and green
chop. This makes sorghum the leading grain-forage and
food crop
Petrovsky garden was founded in 1703 and is the most
important historical object of landscape architecture in
Petrozavodsk. Tikhon Balandin made a description and
drawing of Petrovsky garden at the beginning of the
19th century. He completed his work by studying and
measuring the fragments of the earthen fortress, blast
furnace and the location of the destroyed palace, pond
and birch garden. On the basis of the historical
documents, we created a 3D model of Petrovsky
garden using of modern computer-aided design. Threedimensional
model of the garden allows viewing the
object from different angles, gives an idea about
structure and compositions of the garden on a new
visual level. Some examples of visualization garden
fragments were presented at the article. Now the
garden doesn’t have its original structure. The
historical garden layout and 3D model of object can be
used for reconstruction of Petrovsky garden
With the possible radioactive contamination of the
territory, as a result of emergency situations at
enterprises of the nuclear fuel cycle, there occurs a
task of further use of the soil for agricultural purposes.
Researches on the cultivation on contaminated areas of
fruit plants in the conditions of the Krasnodar region
were not carried out. As a result of the experiment in
the field we received experimental material on
migration and 90Sr accumulation in vegetative and
generative organs of cherry-plum. Research lasted for
8 years. The accumulation of 90Sr, placed on the
surface of the soil, in the bark, wood, leaves, and fruit
was 7,0×102
; 4,8×102
; 9,7×102
and 1.8 ×102Bq/kg.
With the penetration of 90Sr in soil at 50 cm
accumulation in the bark, wood, leaves, and fruit were:
5,1×102
; 3,0×102
; 6,9×102
; 1,4×102Bq/kg. The
experimental material obtained in the field makes it
possible to calculate the coefficients of the nuclide
transition from polluted soil to the various organs of
the studied plant and to make a forecast of the possible
use of contaminated areas for the cultivation of fruit
crops. Radioactive contaminated areas cannot be left
without proper control, since, firstly, non-planted
fields are exposed to wind and water erosion of soils,
which leads to rapid and large-scale pollution of the
environment and, secondly, if it is possible to obtain
products from such fields, this should be done for
economic reasons
The results of the study of physiological and biochemical parameters of plum plants, changing when infecting plants Plum pox potyvirus (PPV) are shown. It was found that the infected leaves at the stage of full development of the content chlorophyll a reduced by 30 % in variety Stanley and by 6 % in Kabardinskaya rannaya, chlorophyll b in less than 49 % at Stanley, 37% in Kabardinskaya rannaya, carotenoids are less than 22 % in the variety Stanley and by 11% in the variety Kabardinskaya rannaya . Leaves infected with the virus pox (PPV), in comparison with not infected, the amount of protein were decreasing: in the variety Stanley by 21 %, in the variety Kabardinskaya rannaya by 28 %. In the period of active growth of the leaves change in the content of pigments and protein is more intense. The content of lignin in the tissues of leaves, infected with the virus pox (PPV), in comparison with not infected in the variety Stanley was below on 13 % and in the variety Kabardinskaya rannaya - 8 %. The total content of water of infected tissue on the stage of a full-time development is reduced in patients leaves as compared with not infected 11 % in the variety Stanley and by 1 % in the variety of Kabardinskaya rannaya. Throughout the period of development of foliage studied parameters vary depending on the variety
To improve the quality, safety and competitiveness
of the domestic raw materials of animal origin the
use of probiotics in the poultry industry is a priority
and promising direction of the development of
organic agriculture. One of the key problems of the
production of probiotics is to provide actively
stable preparations. Biocompatibility of the
indigenous microflora with probiotics, medical
form and individual range of antibacterial activity
of probiotics have a significant impact on the
introduction of probiotics in new habitat conditions
and its effectiveness. Consideration of these factors
can enhance the effectiveness of probiotics.
Currently, the available literature has insufficient
justification of certain doses of administration and
methods of using different probiotic preparations.
The materials present and summarize the results of
the research concerning the use of probiotics in the
poultry industry, based on the achievements of
Russian and foreign scientists. In addition, based
on the analysis of various sources of scientific
literature, we suggest ways to solve the problem of
probiotic therapy and give some recommendations
on the organization of the technological process of
selection and application of different probiotics in
poultryfeeding. Raw meat from poultry reared with
the use of probiotic preparations is safe, because
metabolites of probiotic microorganisms are not
accumulate in the body tissues. Researches of
biosynthesis regularities of probiotics were made at
the cellular level, including genetic aspects,
features of regulation of secretion, dependence on
the cultivation conditions, interaction with binding
sites on the cell surface, participation in the vital
activity of the population of individual cells. The
use of probiotics contributes to normalization of
the intestinal microflora, activation of protein
metabolism, productivity increase, reduction of
feed costs per unit of production and increasing of
poultry industry economic efficiency as a whole
Barley is one of the important fodder crops. In modern
Russia barley is sown throughout the farming areas.
The effectiveness of barley cultivation in some years is
reduced due to the infestation with helminthosporiosis.
Net blotch of barley Drechslera teres is a widespread
and highly destructive disease in the world including
Russia. In recent years the disease has been
progressing in all grain-producing countries. Yield
reduction due to the strong development of the blotch
can reach up to 45%. Most cultivated barley varieties
are susceptible to Drechslera teres. Нelminthosporiosis
are characterized by greater variability and rapid
adaptation to new varieties of host plants. In order to
solve successfully the problem of barley immunity to
net blotch it’s necessary to conduct genetics and
population studies of the Hordeum vulgare -
Drechslera teres pathosystem
Ferrourtikavit is a biologically active additive (BAA)
derived from common nettle supplemented with micro
nutrient elements (titanium, vanadium, molybdenum,
zinc, copper, iron, tin, chromium, manganese, barium).
Ferrourtikavit is manufactured from local vegetable
raw materials, however its application in feeding dairy
cows is not sufficiently studied. Therefore, the
application of the BAA ferrourtikavit in animal
feeding with a view to increase milk production is
relevant. The aim of the research conducted is to
investigate the impact of the BAA ferrourtikavit on the
overall nutritional value of animal diet and reduction
of food consumption. The experiment was conducted
on four groups of black-motley breed dairy cows.
Formation of the experimental groups (15 animals per
each group) was performed on the third lactation,
taking into account age, productivity during the
previous lactation, breed characteristics, live weight.
The main diet consisted of hay, haylage, succulent
fodder, concentrates. Additionally to basic diet the 2nd
,
3
rd and 4th experimental groups obtained the BAA
ferrourtikavit at the doses of 0,25, 0,50 and 0,75 mg/kg
of live weight, respectively. It has been established
that the animals from the experimental groups (2nd, 3rd
and 4th) consumed 43,9-51,3 energetic feed units less,
439,4-513,5 MJ metabolic energy less, 56,4 – 62,0 kg
dry matter less, 1,1 – 1,6 kg digestible protein less.
The lowest feed consumption was noted among the
animals from the 3rd experimental group, in the basic
diet of which the BAA ferrourtikavit in an amount of
0,50 mg/kg of live weight was introduced. The research conducted established, that application of the
biologically active additive ferrourtikavit in the diet of
lactating cows at the dose of 0,5 mg/kg of live weight
led to the highest milk yields 4678±45,17 kg. In the
experienced groups, increase in milk yields, decrease
in concentrates' utilization as well as costs of 1 kg milk
as compared to the control group were registered
The results of the study farm «Zavet Ilyicha» JSC,
Leningrad district of Krasnodar region, are presented
in article to study the role of rolling phosphorus in soil
samples, organic fertilizers and grain output of winter
wheat. We examined the relationship between the
content of phosphorus in the soil and fertilizers are
introduced and subsequently with the quality of the
harvest of grain. To receive high harvests of crops,
primarily need adequate amounts of phosphorus in
soils in an accessible form. The next important step is
the use of different fertilizers (mineral and organic)
under crops. Without the use of fertilizers cannot
return key for plants of nutrients, such as phosphorus,
nitrogen and sodium in the soil, since agricultural
products makes the nutrients. What dose of fertilizer
use and profitable forms of these fertilizers, solves
every household depending on culture, soil, climate
and economy. We received during the research the
following results: for 4 year average contents of
phosphorus in soils of agro-landscape in General, au
pairs amounted to 27.2–31.4 mg/kg. Average levels of
phosphorus in the soils crop rotation fields amounted
to 26.9 and 30.9 mg/kg. Maximum values amounted to
115.0 mg/kg, while the minimum is about 3.0 mg/kg.
Also conducted analyses on the contents of rolling
phosphorus in manure polupereprevshem pigs and
cattle. Marked by a very significant gap in content of
phosphorus, which is associated with significant
differences in their feeding. In grain of winter wheat
for 4 years, phosphorus content accounted for at an
average of 3.41 g/kg; minimum and maximum
performance from 2.35 to 4.47 g/kg, in 2012.
Compared with 2012 phosphorus concentrations in
grain of winter wheat has gradually increased to 2015,
and accounted for 3.47 g/kg with minimum and
maximum thresholds ranging from 2.05 to 4.89 g/kg
DYNAMICS OF CATALASE ACTIVITY IN THE LEAVES OF APPLE TREES UNDER THE INFLUENCE OF FOLIAR FERTILIZING
The research was conducted studying the effect of
various system of foliar fertigation on catalase activity
in the apple orchard with drip irrigation in 2013-2014.
The object of research were apple trees of
Zhigulevskoye variety grafted on rootstock 62-396 in
experimental intensive apple orchard of I.V. Michurin
FSC which had been planted in 2007. During
vegetation, the following indices were determined in
apple tree leaves in dynamics: catalase activity by
gasometrical method of M.I Lishkevich on the 3rd and
5
th day after treatments, the content of nitrogen
(Kjeldahl method), phosphorus (KFK-3), potassium
and calcium (Jenway PFP-7). Data were statistical
processed according to the generally accepted methods
described by B.A. Dospekhov. It has been established
that foliar fertigation increased catalase activity on the
3
rd day after treatment, which then decreases to normal
values. So, treatments acted as a stress factor.
Correlation of catalase activity with nitrogen content in
the leaves increased, and with calcium content
decreased as the number of megafol mixed with
calcium calbit treatments was enlarged. Using tank
mixtures for multiple treatments with combination of
antistress preparations and calcium-containing
agrochemicals allows to moderate significantly the
stress effect of foliar fertilizing on plants