Поиск статей
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EFFECT OF DRIP IRRIGATION ON SOIL SALINIZATION
06.00.00 Agricultural sciences
DescriptionThe article presents the results of researching into the effect of drip irrigation on build-up of soil salinity using water with high salt content and the dynamics of changes during winter period under atmospheric precipitation. It was established that at the end of irrigation season zones with high salt content formed on the soil surface under drip irrigation using sodium sulfate water, among these salts gypsum was presented. In spring time the increasing of sodium sulfate content was found that indicates the exchange reaction with soil exchange complex passed as well as the insufficient salt leaching occurred during the winter period. In spring time the upper soil layer characterized with alkaline type of soil salinization
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06.00.00 Agricultural sciences
DescriptionThe article is about the influence of various norms of fertilizers on efficiency of three various by origin and zone varieties of middle fibrous cotton in steppezone of East PreCaucasis. The purpose of the research is the optimization of mineral food of non- irrigated cotton
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In this article the influence of four nanometal oxides on tadpoles of lake frog in pure water and in low concentrations of sawage of sugar factory is considered. It is revealed the protecting action of three nanometals, characterized by an increase in growth rates and decrease in death rate of tadpoles in sawage of sugar factories
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06.00.00 Agricultural sciences
DescriptionThe results of researches of influence of different irrigation modes on productivity of cultures and efficiency of use of irrigating water at cultivation of potatoes, cabbages, onions, tomatoes and cucumbers in the conditions of an irrigation are resulted in the article
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In this article the changes of age and sexual structures of populations of a lake frog from ponds-evaporators of sugar factories are show. The are the low number of adult animals, the increase of frogs of morpha maculate and females
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MELIORATIVE PIPES FROM POLYMER-CEMENT CONCRETE
DescriptionIn the article the expediency of application of polymers water dispersions (WDP) in pipes concrete with the metal core, applied on reclamation systems is shown
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The article describes the method of performing calculation the resultant drifting of pollution discharged into the sea as wastewaters of fishing ships. It presented formulas for discovering the drifting of ship’s waste water fields in the seaward districts of western Kamchatka. Results of calculation the wind’s summary vector at 50 km distance from the shore meteorological stations of western Kamchatka based on direction (compass point and degree) and average monthly speed are presented. The analysis of these results gives the conclusion that waste water fields from the ships could reaching western shore of Kamchatka and pollute it
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CAPACITY OPTIMIZATION ON THE IRRIGATION TECHNICS
DescriptionMathematical modeling of process of an operational parameters choice of watering techniques, which can be used as the theoretical basis, allowing making multiple numerical experiments for the purpose of results reception for a concrete irrigated site, is considered. Article is recommended for researching and other organizations at designing new and reconstruction of existing sites, and for the operational organizations at decision-making of a choice of technology and watering techniques
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06.00.00 Agricultural sciences
DescriptionThe data about results of researches on revealing of optimum irrigation modes, features of water consumption of plants and definition of rational level of a mineral food of the cabbage which is grown up in an open ground in the conditions of an irrigation is cited in the article
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Special method and unified numerical algorithm of simulation modeling ETM of basin geosystem were developed, and as example of ETM of the river Belaya were implemented. Assessment of hydrological mode in the placement of section line of riverside water intakes of water-supply system JSС «Salavatnefteorgsintez» on the basin of numerical experiments is made