One of key categories of research is the estimation of financial stability for support of stable functioning of the financial and economic mechanism of the enterprise
One of the most destabilizing factors of crop production is weed infestation of crops. Despite annual herbicide treatment, weed infestation of crops of winter wheat remains high, with a predominance of annual dicotyledonous weed with a higher proportion of drug resistant on the basis of 2,4-D. We also notice increased range and density of perennial dicotyledonous weeds. New combinational herbicide called Cayenne, manufactured by LLC "Agro Expert group", which in its composition contains two active substances: thifensulfuron-methyl (500 g/l) and florasulam (170 g/l), highly inhibits both annual and perennial dicotyledonous weeds. According to the working program of the registrant's company we have tested Cayenne on crops of winter wheat in spring in the tillering phase and the formation of the second internode. It is shown that its use in doses of 0.025 and 0.035 kg/ha in mixture with 200 ml/ha of surfactant-Bit 90, W provides effective suppression of annual and perennial dicotyledonous weeds (90 – 100 %). The negative effect on the culture was not observed. At the same time, within 2-3 days after herbicide application we observed cessation of growth, chlorosis, dieback of growing points of weeds. Complete death was observed after 15 – 20 days
Multicriterial formulation for centers placement problem
on many-weighted prefractal graph is proposed. Estimation
of the radial criterion of prefractal graph generated
by seed-star is shown. Polynomial algorithm centers
placement on prefractal graph with preserving contiguity
old edges is suggested. Estimation of computational
complexity of the algorithm and the example of the work
algorithm are considered
The article describes the network-centric approach to a building control system based on the "inner teacher" neuro - fuzzy topology, which uses the principles of reinforcement learning
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.
The study included 245 patients from 60 to 89 years, comparable by age and sex, were divided into two groups according to region of residence (Arctic and Antarctic), for two age groups (elderly and senile age) and by the sex. The main method of the study of cerebral hemodynamics in this work has been ultrasound dopplerography (usdg). Doppler sonography survey with color scanning and spectral Doppler analysis of the cervical arteries on extracranial level was performed according to standard method for ultrasound systems ACUSON “Sequoia-512” sensor linear format of the generated frequency of the ultrasonic signal 4 and 8 MHz in the ever-wave mode. The entire sample investigated the functional state of the kidneys. GFR was determined by the settlement formulas; Cockcroft&Gault GFR= (140-age) × body weight (kg) 810* creatinine of blood (mol/l)×E, where E-1,23 for men, 1,04-for women and MDRD: GFR= 186×(creatinine of blood mg/dd)-1,154 × (age)-0,203 × (0,742 for women) with subsequent determination of the stages of chronic kidney disease. We used a brief MDRD formula, which of laboratory indicators requires only establishing the values of concentrations of serum creatinine
Material and technical resources form a large part of the
costs in agricultural production and determine the level
of intensity of agriculture, productivity and
competitiveness of the industry. The most important
role in agricultural production is played by transport
operation, from productivity and quality of which
directly depends the volume and the grade of final
products. More preferable is tractor transport,
particularly for on-farm transport, taking into account
the impact of navigation systems on the ground.
Continuous growth in the saturation of tractors carried
out around the world, improves the performance of
tractor transport aggregate by increasing their capacity and speed, either on the road or in the field. However, if
you increase the saturation of tractors, it encounters
problems related to the deterioration of the
controllability of the tractor and transport unit. The
reduced controllability leads to an increase of damage to
transported agricultural products owing to increased
oscillatory processes in the system of "road – trailer –
tractor – operator" when driving on-farm trails,
deteriorating the smoothness and braking properties.
Especially sharp these questions relate to transportation
of easy-to-damage agricultural products at farm
transportation. The feature of data traffic lies in the
sharp drop in grade products (products receive
numerous mechanical damages, deteriorating its quality,
and lose marketability and accordingly reduced its cost).
Influence on fruit and vegetable products of unfavorable
factors can lead not only to a dramatic loss of quality at
the time of transportation, but also reduce the resistance
during further storage. To solve the problems emerging
when increasing the saturation of tractors, we have
proposed devices, allowing reducing negative impact on
the production of elevated oscillatory processes, to
increase the permeability and straightness of movement
of tractor-transport unit
Management is considered as a service providing value creation in the corporation. Improving the quality of management and the formation of its competitive advantages is a priority. Controlling has a significant influence on the quality of management. However, for its implementation it is necessary to form the need to the head to establish a system of information - analytical management support. The survey of CEOs identified the lack of sustainable demand for controlling. The main source of the challenge for controlling is corporate executive. The reason of the lack of significant challenges to controlling lies in the existing system of management of corporations and, above all, in the person of the head. Formal and informal management as two complementary approaches, the components of the success of the head - the leader, the key characteristics of managerial behavior of the head and needs for intelligent management services were discussed in this article, a new concept of controlling as the management of intellectual service was offered
We have established a change in the concentration of nitrous connections - amino, ammonium, total nitrogen and protein - during the fermentation of grape must by different races of yeast. Yeast which ensure reduction in the number of nitrous connections at the stage of the active fermentation were isolated
The article examines the results of studies on the study of changes in the structure of leached chernozem in the low-west agro landscape, depending on the technology of cultivation of field crops. The research task was to determine the effect of basic tillage (dumping plowing, non-loosening loosening and surface treatment) and fertilizer systems (mineral and organic in crop rotation) on the structure (aggregate composition of the soil) of the old irrigated leached chernozem. It was established that the aggregate composition of the arable layer when cultivating tilled crops (sugar beet, soybean and corn) was noticeably inferior to the structure of the treated layer under crops of solid crops (winter wheat, alfalfa). The content of agronomically valuable soil aggregates for roaches varied from 39.8% in corn to 53.4% in soybean. At the same time, the structural coefficient was 0.7-1.1. Cultures of continuous sowing increased the content of agronomically valuable soil aggregates of the arable layer by an average of 12.2%, and the structural coefficient by 0.6. The replacement of plowing with non-loosening loosening and surface treatment in crop rotation showed that in the arable layer of the aggregated soil particles under the tilled crops practically did not change. This figure was 47.3 and 48.5%, while in plowing it occupied an intermediate position - 48.3%. Under the crops of continuous sowing a tendency to increase agronomically valuable aggregates was noted. The mineral fertilizer system fully worked to preserve the structure of the soil when it was used for plowing. The remaining methods of basic processing against the background of the mineral fertilizer system are less effective. According to the arable crops there was a tendency to increase aggregates of 10-0.25 mm in size. Winter wheat (according to its predecessor - corn and alfalfa), alfalfa of different years of life increased the austerity of the arable layer by 9.0%. Organic fertilizers, introduced twice in the rotation, significantly improve the soil structure in the plow layer. The organic system used for tilled crops in comparison with unmanned crops for plowing, non-rooting and surface loosening increased the number of aggregates measuring 10-0.25 mm on average by a rotation of 10.4. Organic fertilizers in the link of the crops of continuous sowing improved the aggregate composition by an average of 4.3%. Optimal organic fertilizers worked against the backdrop of non-loosening loosening