The article presents the results of a study to determine
changes in indicators of fertility in typical chernozem
of the Belgorod region and the productivity of corn
using different agricultural technologies, including
with elements of biologization
The article is devoted to the various elements of the cultivation technology of winter wheat called Antonina with the application of different soil fertility backgrounds, fertilizer norms, and plant protection systems against weeds, pests and diseases. Investigations are carried out in a multivariate stationary experiment: factor ‘A’- soil fertility; factor ‘B’ - fertilizer system; factor ‘C’ - the system of plants protection; factor ‘D’ - the main methods of soil tillage. Four models of soil fertility levels were studied in the experiment: А0 - initial (natural background); А1 - medium (200 kg / ha Р2О5 and 200 t / ha of solid manure); А2 - high (double dose); at А3 - high (tripled) on three backgrounds of basic soil tillage: nonmoldboard, recommended, moldboard with deep bursting and without the application of tillage (direct seeding and the natural rate of soil fertility). The soil is heavy leached black humus with humus content in the arable layer of 2.5% - 2.9%. Based on examined researches it was found that for the sustainable yield of winter wheat the dose of mineral fertilizers should be increased, by that, the high quality of the grain is provided
Feeding lactating dairy cows of the Simmental breed
using the collection of herbs with Тhyмus bituminosus
Klok, Achillea millefolium L., Polygonum aviculare
L., Galium verum L, Chamerion angustifolium L.,
Sanguisórba officinális, Stellaria media L. and
Amaranthus retraflexus L. contributed to a better
digestibility and nutrient utilization of diets. A high
level of digestibility by cows experimental compared
to the control group is set with respect to the dry and
organic matter of 2.0% and a crude protein 1.4 %.
When using the collection of herbs, there was an
increase in the antioxidant status of erythrocyte cells in
blood of dairy cows as expressed in the increasing
content of low molecular weight antioxidants in blood
cells by 1.4 times in reducing the intensity of lipid
peroxidation of erythrocyte membranes in 1,2 times, in
comparison with the control values. The use of the
collection of herbal increases milk yield of cows of the
experimental group by 7.4 %, increases by the 16.2 %
yield of milk fat and the protein content of 10.7 % in
milk of dairy cows compared to the control group
Tasting and smoking properties of tobacco products
depend on chemical composition of dried tobacco. The
most important are nicotine, carbohydrates, and
proteins. Their content is controlled when new sorts
are bred. In the article data on chemical composition
and their analysis for some hybrids, new and zoned
sorts are presented. Most of studied samples had
medium nicotine content in dried tobacco. Hybrid of
Jubileiniy noviy 142 and Ostrolist 46, sorts: Trapezond
159, 359, 115 and Ostrolist 46 were characterized as
low nicotine tobaccos. Jubileiniy (standard) and
Oktiabrskii were characterized as high nicotine
tobaccos. This indicator depends on rain quantity
during vegetation period. During drought seasons this
indicator is higher. Total soluble carbohydrates content
affects smoke taste. The more water soluble
carbohydrates content the better smoking properties
tobacco has. Unlike nicotine, carbohydrates content
when rainy season increases. Best results were for
Krupnolistniy 9M and Oktiabrskii. Proteins have
negative effect on smoke taste as it becomes bitter and
with smell of burned feathers. Most of studied hybrids
have quite high protein content. For cured tobacco
quality assessment, not total contents of proteins and
carbohydrates are important but their ratio
(carbohydrates/proteins) called Shmuk ratio. Best
results were for Krupnolistniy 9M and Oktiabrskii
The purpose of the study was to examine a century of
experience of growing of forest cultures of the
Siberian stone pine in forest conditions in the region of
the Middle Volga. To achieve these objectives, we
have investigated old growth culture of Siberian stone
pine in the conditions of fresh oak forests in the
territory of Rootka forestry of the Mari El Republic.
Culture of Siberian stone pine was planted after
continuous tillage. The distance between rows was 2,5
m, step landing – 1,0 m. The site was divided into five
options, depending on variations in the width of
planting strip (I-48 m, II-44 m, in III-40 m, IV - 36 m,
V - 32 m). The studies have shown that the Siberian
stone pine trees, regardless of the variant, are
characterized by good clean ability from twigs, which increases with decreasing of the width of the curtain. It
can be noted that in the 100-year-old age, the average
height of trees reaches of 28,7 m, an average diameter
of 49,8 cm. Stock of forest reaches 795,3 m3
/ha. Best
annual increase is observed in growing cultures of
cedar in the wings with a width of 40 m and is 7,95-of
7,93 m3
/ha. Based оn the research, we have concluded
that Siberian stone pine should be recommended for
introduction into the zone of coniferous-broadleaved
forests of the Middle Volga region. When creating
crops, it is necessary to use larger seedlings and plant
density is not more than 1,0 thousand pieces/ha, and
the width of the planting strip shall be not less than
40,0 m.
In the soils of rice fields, eluvial gley processes
develop, which are manifested in redistribution of silty
particles along the profile, water-soluble humus,
mobile compounds of iron and phosphorus. Most
intensively, these processes are developed in meadowbog
soils, confined to closed depressions of the plains
plain. Meadow-black soils lying on elevated relief
elements have more favorable physical, physicochemical
and oxidation-reduction properties for
cultivating rice and accompanying crops in crop
rotation. The highest yield of rice is formed on high
checks and higher at 12,4 c/ha than on low ones
The study of the productive qualities of crossbred
offspring from different breeding combinations and
identifying the most effective ones providing the
maximum increase in the production of high quality
lamb while reducing its cost is an important problem
and is essential for further development of methods of
creating a new type of precocious meat and wool
sheep. In the Rostov region in the result of the
establishment of populations of meat-wool sheep there
are several groups of animals with different
characteristics and hereditary inclinations. As the base
of the work there is a method of mating and breeding
of sheep of the desired type. The article presents the
results of one of the fragments of a large complex
work in which the possibility of using three-pedigree
hybrids, created with the involvement of potential
salskaya, edilbaevskaya and intense meat-wool breed,
which is severokavkazskaya, to improve productive
quality in the breeding of sheep. We have evaluated
productivity and biological features of hybrids and
proved the economic efficiency of their use in the
production of mutton. We have given the results of the
control slaughter and assessment of qualitative
indicators of the meat of young sheep. The set of
indicators characterizing meat productivity and meat
quality revealed that the superiority of the studied
indicators remained for two - and three-bred cross
cattle. Hybrids have a higher rate of growth and
quality parameters of meat productivity. These options
are simple and complex industrial crossing are
promising and can be implemented and used on the
farms of the zone of breeding Merino sheep. Thus, the
use of crossbreeding gives an opportunity to convert a
flock of sheep in the desired direction quickly. At the
same time, three-pedigree hybrids better combine the
valuable qualities of the used species
The article presents the results of studying the impact of different options for cutting fruit vines on the growth and productivity of shoots of the grapes. The obtained experimental data indicate the excessive overload of vines with eyes and shoots when performing contour trimming bushes without normalizing the choice of shoots, in comparison with other variants of experience. A significant increase of eyes on the vines when performing contour cutting was because during this method of cutting, the cutoff is at a certain level all the shoots are horizontal on the arm vines. A big load of vines shoots when performing contour cutting has reduced the length of shoots at 48 – 51%, and leaf area developed on the shoots of 53 – 54%. While the lowest productivity was different shoots developed on the vines in 3 variant, because here the contour cutting vines was not accompanied by a subsequent breaking of superfluous shoots, which have overloaded the bushes shoots. At the same time, contour cutting vines with subsequent breaking of the normalizing excess shoots were allowed to grow for fruiting the bushes a sufficient amount of normally developed shoots with high productivity and good quality bunches
Basic aim of institute’s breeding is to keep, renew and
increase selection and genetic resources of Nicotiana
tabacum. Final stages of this work are competitive and
state sort testing procedures. Their results are base for
zoning new sorts. In the article, the results on testing 8
new tobacco sorts of Trapezond and Ostrolist sort type
are presented. Testing on experimental field situated in
Severskii district of the Krasnodar region lasted for
five years. For this purpose, phenological observations,
biometric and technological properties measuring,
plant productivity and dried tobacco quality
assessments and other operations were carried. As the
result, Trapezond 25, Ostrolist 360 and Sheptalskii 63
sorts may be recommended for zoning and utilizing in
industry. Trapezond 25 and Sheptalskii 63 are sorts
with high productivity, high quality of dried tobacco
and good curing properties. Ostrolist 360 when earlymiddle
maturing keeps high productivity and quality of
cured tobacco. Other sorts: Trapezond 115, Ostrolist
311, Ostrolist 149, Ostrolist 90, Krupnolistniy 22 can
be initial material for further selection
One of the prospect directions in new sunflower
hybrid development is cold resistance breeding in
the emergency stage. Sunflower hybrids with
uniform emergency and high rate growth under the
low temperature conditions could allow to
introduce sunflower in the new regions of our
country and so to increase sunflower acreage. The
aim of our work was to screen all sunflower
available samples for growth rate under the low
temperature and to select the best lines and initial
material for future breeding. 140 sunflower lines of
VNIIMK breeding and hybrid populations on their
base were used as a material. Seeds of every sample
were incubated during the 10 days in the thermostat
under 100 С. Seed germination was evaluated for
the each sample along with the seedling size. As a
result the most prospective samples were selected
for the future breeding work. On the second stage
of the experiment one selected population was
evaluated on the Breeding station of Vavilov’s AllRussian
Research Institute of Plant Industry in the
city of Pushkin (Leningrad region). Seeds from the
best plants were obtained in this place and will be
used for the new lines development.
So the effectiveness of selection of sunflower
samples for growth rate under the low temperature
was verified and this method could be used to
introduce sunflower in the new regions of our
country with more severe climatic conditions