In the article, long-term data (2007-2015) of biometric parameters of an elevated part of plants are provided. Assessment of prospects of five introduced botanical species of juniper is carried out and recommendations about their use in landscaping are made. From 25 studied grades of junipers of types: Cossack, Sredniy, Virginia, Horizontal and Scaly we have established very perspective, perspective and a little perspective for gardening in the conditions of a foothill zone of the Krasnodar region
Limited resource of irrigation water in the South of
Russia is a particularly actual task in the production
of moisture-loving crops, such as rice. To solve the
problem of rational use of water when watering is not
possible without the organization of an automated
water distribution. As it was shown by the analysis of
tools and technologies of regulation of water supply,
the most promising, form tested and used, can be tape
regulators of flow and water level. They have a
simple construction diagram, unpretentious in
operation. However, we have identified a fault –
unregulated leaking, not fully covered through the
bore, which in turn increases the uncontrolled
consumption of irrigation water. To solve this
problem we propose a number of designs, protected
by patents of the Russian Federation, having special
fixture to ensure unauthorized leaks, even in a state
almost close to the fully closed opening expiration
from the regulator. The article comprehensively
considers hydraulic studies of controller initially,
without any additions that contribute to the problem
of eliminating leakage. The proposed study with the
analysis of the distribution of velocities and pressures
in the design of belt regulator, will allow you to have
the basic reference model against which it will be
possible to analyze the degree of influence of
constructive-technological changes at the work the
newly developed devices. For this, we modeled tape
controller in the software package FreeCАD version
0.15, when using SAE - system FlowVision. The task
of modeling water flow were solved in flat statement,
including the moment of full closing of the belt
passage opening of the regulator. For plotting surfaces, lines, levels and cross-section response
functions, we used a software package wxMaxima.
The results obtained allowed a comprehensive
analysis of the work tape of the locking device,
hydraulically actuated device in all modes of the
major factors and, in the future, will help to address
the issue of studying the impact of introduced
technological changes in the design of controllers
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
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
The extensive path for development in the country in the
twentieth century caused low competitiveness of
Russian pig production. The productivity of domestic
pig production was significantly lower than in Europe,
US, Canada and China. Feed costs per 1 kg of gain were
2-3 times higher with a low yield of piglets from a sow
per year: 14-16 with an average European 25-27 heads.
The country did not have enough meat; as a result, a
significant amount of meat products was imported to
Russia. Restrictions on imports in connection to the
imposition of embargoes contributed to the increase in
demand for domestic products and opened new
opportunities for Russian producers. One way to
increase the production of pork is to use pigs with a high
genetic potential for productivity, imported for breeding
from Canada and Europe. Based on the conducted
studies, it has been established that pigs of foreign
breeding have high reproductive qualities, which proves
the expediency of their application in commercial pig
production to increase the efficiency of the industry
development and reduce the import of pedigree
youngsters from abroad. The implementation of two
breed gilts will help increase productivity in the
industrial pig production
Searching for new promising plant growth regulators
and antidotes, we have synthesized a series of Nsubstituted
naphthalene-2-sulfonylamides. Synthesized
compounds have been studied as potential growth
regulators of economically significant crops - winter
wheat, sugar beet, sunflower, soybean, and herbicide
antidotes for sunflower growing plants. The substances
with high growth stimulating and antidote effect were
found
Sorghum is a source of concentrated, succulent and
coarse forage. Its grain is used for making the mixed
fodder and as the concentrated forage for swine, cows,
sheep, horses and poultry. Sweet sorghum is successfully
used for silage and haylage. Green chop of Sudan grass
is used as fresh food for domestic animals and it’s used
for making hay and silage. The nutritional value of the
fodder is the way to meet the animal needs in nutrients,
necessary for living. To determine the nutritional value
of the fodder, oat fodder units and energy fodder units or
exchange energy are used. At present the assessment of
nutritional value according to fodder units is being
revised, because it doesn’t give the true picture of the
value of fodder nutrition and animal needs in nutrients.
The general energetic nutritional value of fodder is
considered as contents of all organic substances, supplied
with fodder or with its energy. The nutritional value of
fodder is valued according to the characteristics of its
chemical composition, digestion of nutrients and general
(energetic) nutritional value. The purpose of the work is
to assess the nutritional value of fodder, obtained from
the best sorghum varieties, as the food for different kinds
of agricultural animals. Sorghum, used as fodder for
poultry possesses the largest nutritional value. Among
the grain sorghum varieties, the variety ‘Zernogradskoe
88’ has got the biggest value of fodder units. The green
chop of Sudan grass and green fodder for silage of sweet
sorghum possess the greatest nutritional value for swine.
The varieties of Sudan grass ‘Krasava’ and ‘Arkadiya’
and the variety of sweet sorghum ‘Listvenit’ are the best
varieties according to the contents of fodder units
The article presents results of the six-year study of the
effect of stocks Berlandieri × Riparia Kober 5BB and
Chasselas × Berlandieri 41B on yield, quality of
grapes and wine Rkatsiteli in the central zone of the
Krasnodar region. Effect of stock on the scion strongly
depends on the annual weather conditions. In a given
year, there is a stock, better adapted to the weather
conditions. Stocks of Chasselas × Berlandieri 41B
increases winter hardiness variety Rkatsiteli. On
average, during six years the stocks have not been
resulted in significant difference between the
percentages of developed into shoots buds and fertile
shoots shown in the coefficients of fruiting and
fruitbearing shoots Rkatsiteli. Among all the
influencing factors, the degree of influence of stocks is
0.1-0.4%. Some differences in forming of generative
organs of wintering buds along the fruiting twig under
the influence of stocks do not lead to significant
differences in biological terms of fruiting varieties in
the whole piece. On average, six years of significant
difference in the effect of stocks on the average weight
of the bunches, and the yield is not defined - the
degree of influence of rootstocks on mentioned
indicators is 0,1-2,1%. A significant impact of stocks
on the dynamics of sugar accumulation in berries has
not been discovered. The degree of influence of
stocks on to the final sugar content and acidity of
berries is 0.3 and 14.5%, respectively. The wine
produced from Rkatsiteli berries on a stock Berlandieri
× Riparia Kober 5BB has the better tasting score than
on the stock Chasselas × Berlandieri 41B (7.5 and 7.4
points, respectively). The main influence on fruiting of
the variety Rkatsiteli was provided by the conditions
of the current and previous vegetation. Within the
conditions of the central zone of the Krasnodar region
the cultivating of the variety Rkatsiteli is reasonable
for both studied stocks
This article presents the studying results of new premixes of domestic production using efficiency based on processed products, in particular - oil cakes. The research was carried out in the conditions of the second-order pedigree reproductor in LLC "Svetly" in the Svetloyarsky district of the Volgograd region in the period from 2015 to 2017. During the scientific and economic experience, the authors revealed the new fodder additives positive influence on the laying hens’ egg productivity, on the eggs morphological and incubation rates and on the got young birds. The use of premixes in layer diet, which included the fodder concentrate from the plant raw material "Sarepta" and Camelina seed oil cake, contributed to the increase in the hens laying capacity, in general, the group received in 249 and 310 pieces more than in the control one. The egg average weight from the chickens of the control group was 60.89 g; from the first experimental it was 61.33 g; from the second experimental it was 61.39 g, which was higher than in the control one, respectively, by 0.44 g and 0.50 g. While the hatching eggs morphological indices analysis, it was revealed that all parameters are within the permissible limits of the physiological norm. Fertilization of eggs in the control group was at the level of 89.33%, which is lower than in the experimental groups. As a whole, the eggs' production in groups was 20.00% in the control, 17.33% in the 1st group, and 16.00% in the 2nd test group
The article describes the evaluation of reproductive,
fattening and meat qualities of pigs of purebred large
white breed (KB), crossbred ewes, derived from
crosses KB sows with boars of steppe type (ST) CM-1
and three-pedigree animals, obtained by crossing
crossbred ewes KB x ST with imported boars of
specialized meat breeds, such as Landrace (L) Duroc
(D) and pietrain (P). We have studied qualities such as
prolificacy, milk yield, live weight of the nest, the
average weight of one Piglet, the safety of the
offspring to weaning, maturity, which is closely
associated with average daily gain in live weight, meat
content of carcasses, their linear dimensions, meat
productivity, the amount of kidney fat, weight of
carcasses of animals of the experimental groups,
carcass yield