№ 24(8), December, 2006
Public date: 22.12.2006
Archive of journal: Articles count 58, 86 kb
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06.00.00 Agricultural sciences
DescriptionThe article examines the results of vegetation experience by definition of critical capacity humus horizons at typical chernozems Northwest Caucasus. The presented results define a level of natural fertility of various genetic horizons and base critical capacity humus horizons at typical chernozems.
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Finite element modeling of irrigation shell-flume deformed stressed state is considered in this article. The article describes the results of deformations and stresses mathematical modeling.
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The article describes the results of flume reinforced concrete survey carried out in Azov irrigation system and gives conclusion about their condition. It shows characteristic fea-tures of destructions for the period of fifty years of its operation. There have been given aver-age indices of reinforced concrete strenth and the question about the necessity of mainten-ance-restoration work in irrigation systems is raised.
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In clause existing classifications of methods of measurement of volume of round forest product are considered, the new classification attribute and classification in view of this attribute is offered. Perspective directions of development of methods of measurement of volume of round forest product are certain.
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The results of irrigation flumes stale survey will indisructive methods are considered on the example of Azov irrigation system. Especially it is noted the possibility of georadar survey application to hydrotechnical structures.
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06.00.00 Agricultural sciences
DescriptionIn the Orenburg area double-row barleys cultivate, and many rows have started to cul-tivate only last years. Interest represents studying efficiency many rows barley in comparison with double-row. And also studying of influence of various norms of seeding on growth, de-velopment and productivity of different biological grades of barley.