Name
Heifetz Abram Borisovich
Scholastic degree
—
Academic rank
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Honorary rank
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Organization, job position
Kuban State Agrarian University
Web site url
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Articles count: 3
There have been suggested the courses of refinement
of the crop production technologies, has been studied
the efficiency of multipurpose assemblies (MPA) in
the process of mechanization of plant growing, which
provide the production of competitive agricultural
products, more perfect machinery construction and
tools, improving the quality of automated tasks
completion, the issues of machine stock renovation,
raising the effectiveness of their use, complexity of
tasks, integrity and continuity of the working process,
environmental safety of the production. The high level
of the complex task performance is based on
combining several technological operations,
completed during a single pass of MPA, drastically
refining the basic variants of the technologies. Using
the example of the multipurpose assembly Vector for
stubble tillage, introduction of mineral fertilizers,
planting of intercrops and packing of soil, we can
observe a significant advantage of the suggested
technology in comparison with using a mass produced
single-function machine. Combining several
technological operations in a single MPA pass
guarantees agritechnical, ecological, energetic and
economic efficiency. However, no attention is still
paid to the issue of the crop losses decrease (direct and
indirect) during harvesting, as well as to the problem
of the complexity of postharvest tasks simultaneously
with harvesting (tillage, planting of intercrops,
introducing fertilizers, etc). In the current article we
have provided the results of these studies. Respecting
the regulations of environmental safety of technical
units leads to the soil fertility raise and the pollution
decrease of agricultural products. All of them are
carried out in the technical support of the crop
production technologies
There have been suggested the courses of the machine
technologies refinement in the process of spiked
cereals production. The course of their technical
update was studied in our previous article. There were
analyzed the drawbacks of the modern machine
production of crops and we presented the course of
their elimination due to the technology optimization,
resource and energy preservation, machine
technologies of soil improvement and new innovative
technological solutions. The suggested technology
optimization was designed taking into account
rigorous alternation of crops in the rotation,
optimizing of breeds and crossbreeds, application of
intermediate crops simultaneously with harvesting the
previous crop, introducing progressive methods of
chemical treatment and synchronous tillage. The
resource and energy preservation is based on the
combination of technological operations coinciding
with the tasks in agricultural terms during a single
machinery pass across the field, application of the
mobile power unit (UPU-450), low- and ultralow
capacity spraying, optimization of choice of certain
agrimethods in the process of crop production and the
resource calculation of estimated crop yield. In the set
of soil improvement courses we have studied the
mechanization of the restoration processes of natural
soil formation, defecate introduction, the use of
stubbly remains, compulsory presence of permanent
grasses in crop rotation. New innovative solutions in
the crop production technologies include the
refinement of the mechanization facilities in tillage,
spraying, new methods of crop harvesting
(unwinnowed bread, root tow, cleaning of thrashed
heap after the harvesting, etc). We have analyzed the
ways of mechanization of “organic farming” and seed
treatment with biologic mixtures
Using the example of three multipurpose assemblies
(MPA) we have presented the possibility of the cost
and loss function appliance for the substantiation of
the design and operating parameters as the criterion of
optimization. The mentioned objective function of
mathematical model is the sum of expenses on the
performance of the scheduled amount of automated
tasks and the cost of the crop loss related to the failure
of meeting deadlines. It is common knowledge that
the longer the execution of work lasts (e.g. crop
harvesting), the more value it loses. The extremum of
the cost and loss function is the minimum of the sum
of expenses and the cost of losses which sets the
optimal parameters, the mode of the MPA functioning
and the work duration. The cost of inputs for the work
performance within the objective function includes
operating costs of the MPA for the scheduled amounts
of work. With the increase of the duration of these
works the expenses decrease, however, the cost of
losses grows. The sum of the costs of inputs and
losses has the extremum that sets the solution
optimality. The cost of crop losses depends on the
purchase price for the harvested crops and the crop
losses intensity for each day of harvesting which we
have already developed significant dependencies for.
We have suggested the control flow charts for
optimizing the MPA parameters and their functioning
modes, we have evolved the notion of the objective
function and the method of its calculation for different
sets of assemblies. Through the example of the
multipurpose complex assembly for stubble soil
cultivation and simultaneous green manure dropping,
we have analyzed the results of the task solution using
the cost and loss function which is an effective
method of the parameter optimization and the
functioning modes of various machine assemblies and
facilitates the choice of alternative options