The results of experimental research of dynamics of formation of a contract soldier’s professional orientation were shown in the article, as well as the conclusions and methodic of assessment of the level of professional orientation formation
The article deals with the results of research of acoustic and magnetic field influence on conductivity and pH value of hydroponic solution. For carrying out researches in this area the hypothesis of possibility of nutrient solution influence on ions by means of an acoustic and magnetic field is set up. A laboratory scale plant was constructed for a pilot study of the hypothesis. The solution was moved in the tube passing through a ferrite ring with winding. Thus, the solution was exposed to the influence of acoustic and magnetic field. The object of research was hydroponic solution of (NH4)2SO4; (NH4)2HPO4; K2SO4; Ca(NO3)2; MgSO4 in water having adjusted concentration and acidity. The solution was taken from the tank of laboratory scale plant by means of the pump, passed through the working area of the acoustic and magnetic device, filter, and then was poured into the tank, from which the sample for pH level changing was taken. The pH value was measured at the temperature of 22С by using electronic pH-meter KL-009(1)A. For control of instrument readings acidity was tested by universal test-paper. The initial pH value of solution made 5. As a result of acoustic and magnetic treatment of solution pH value of hydroponic solution increased from 6 to 6.9. The results show the possibility of pH value correction by small energy input
The results of experimental researches of a combined machine for forest fires suppression in laboratory and working conditions are presented
The article deals with the question of experimental studies determining the degree of traction resistance of reversible ploughs, when processing a combined plow. We have determined the optimal geometric dimensions of the developed additional working bodies
experimentally
The article presents the data of 40-year-old variety-trial
cultivation of hybrid black poplar and balsamic sections,
as a result of which addressed issues of selection range
of appropriate varieties, their cultivation technology,
aspects of agrotechnology and protection against pests.
At the same time, it absorbed and non-forest land
reclamation funds, in particular sandy and shell, lowhumus,
floodplain soils. As a result, the five-year variety
trials found that under the conditions of the Eastern
Azov on humus shell rock underlain by low-mineralized
groundwater on accessible depth for roots (up to 150
cm), the most highly productive and are stable clones of
Euro-American poplar: Brabantika-175, Sanrau-59, a
Moshnyi-236 and 195 , Bahel, ZS-33 Vernirubens,
60001/1, Caroline-162. In terms of growth, they are
superior to the local Canadian poplar and other varieties
of poplars. Resistance to environmental and biological
factors of the environment most highly productive
species and varieties of poplars are much higher than the
low productivity. Culture of poplar planting might create
unrooted plants directly on the silvicultural area, which
reduces the cost of rooting plants at the nursery, their
digging and transportation and provides a high survival
rate. Culture of poplar are used for the afforestation of
poor sandy forest-steppe zone arrays, often introduced as
the main breed at shelterbelt afforestation
The results of the analysis of the level of implementation of the method of cattle breeding by embryo transfer in an agricultural company from the Krasnodar region with a developed sector of cattle breeding. We have assessed the level of development of all stages of the method in the household, identified errors in the selection of animals and the increased value of culling donor cows and recipients, reduced duration of using recipient cows and high cost of all phases of the transplant process. We have raised a question of the need to change the criteria of economic evaluation of the results of the method
The modern cattle breeding in Russia is
characterized by dynamic development, development
of intensive technologies, increase in production, but
at the same time, there are problems of increase in
production of milk due to increase of dairy efficiency
of cows at the most effective manifestation of the
available level of their genetic potential. For the
solution of this problem, i.e. for genetic
improvement of dairy cattle, creation of new breeds,
intra pedigree or zone types, more than 100 thousand
of bulls with high genetics, and also 430 thousand
heifers were delivered to Russia for the last 10 years.
In this regard, the purpose of our researches was to
study the level of genetic potential of dairy cows in
breeding farms of "Nasha Rodina" of Gulkevichsky
region, Vasyurinsky milk farm of Dinsky region, the
Firm «Agrocomplex» of Vyselkovskiy region
(Gazyrskoye enterprise), "Urozhay" of Kanevskoy
region from 2000 to 2014, by using bulls of
Golshtinsky breed. Researches have shown that in
farms of the Krasnodar region producers with the
high level of potential from 10791,0 kg to 12045 kg
on milk were yield used on a breeding uterine
livestock; from 4,22 to 4,40% of fat; from 3,32 to
3,49% of protein in milk. As a result the level of
potential of daughters of bulls and cows in herds of
farms was from 7774 to 9144 kg of milk; from 3,89
to 4,05% of fat; from 3,26 to 3,67% of protein in
milk. However, genetic potential of new generation
of animals is shown not completely. It is influenced
by partial compliance of the created technological
conditions of biology of animals, and indicators of
breeding value of producers, with their prepatent
indicators. Calculations of breeding value indexes of
bulls – fathers of cows in the herd of "Urozhay" have
shown that each bull has its breeding value, an
ability to transfer the qualities to posterity. Bulls of
Golshtinsky breed of red – motley color ( Pan 2037
and Tulup 78160689), by results of comparison of
milk yields of daughters, mothers and
contemporaries, had negative prepatent indexes of
milk yield and milk protein content (according to
F.F. Eysper and V. Sidorova). The data confirm the
need of carrying out an obligatory index assessment
of bulls before their use on the farm in order to avoid receiving descendants with low dairy efficiency
The article contains the results of machine-tractor unit’s researches on the basis of a class 1,4 tractor having a variable rotary mass of the engine. It is concluded that the use of additional rotary mass being linked at corresponding regimes of motion to the engine’s shaft or primary transmission shaft at the tractor furthers the improvement of operation indexes of a machine-tractor unit
The article reviews the results of the computational experiment by means of mathematic model of a small bioreactor with the bubble mixing system and catalytic heating. We considered the quantitative relationship between design parameters of a bioreactor and parameters of its effectiveness
The results of the experiments on the separation of needles in different ways and reasoning the advantage of microwave processing ways have been presented in this article