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Soil Science and Agrichemistry

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No 4 (2012)

ЗЕМЛЕДЕДИЕ

5-14 39
Abstract
The evaluation of soil improving and agronomic efficiency of minimal till and differentiation of primary soil tillage, green manure, different crops and their varieties in upland and erosion agri- landscapes of the south-east of the country has been done. The issues of transfer of existing zoned land cultivation in adaptive landscape land cultivation in the country in general have been considered.
19-22 56
Abstract
The amount of moisture in the soil makes it possible to establish shelterbelts. The presence of a certain stock of moisture in the deep layers gives the background to the establishment of sustainable plantations. Of all modes of soil preparation should be considered to be the most promising deep black couples.

ОЦЕНКА ПОЧВ

23-31 34
Abstract
The paper deals with system of qualitative estimation of erosion-dangerous and eroded soils of Prisalair area. The expediency was founded for carrying out of integral qualitative estimation; its essence consists in using of values of soil-environmental indices calculated for soils of the territory under research and, at the same time, different procedures for calculation of soil quality class are taken in account. This approach allows carrying out more sufficient qualitative estimation of soils, since at calculations a series of correction is performed for specific properties of each of the studied soils.

Soil ecology

32-37 73
Abstract
The territory of the area round the city of Astana is characterized by a considerable variety of a soil cover. In work problems of creation of artificial plantings on soils of the lowered exponent of suitability of mould board for growth of artificial or natural plantings in suburbs of Astana and their use under forest cultures are considered. Results of analyses of the soil samples taken at carrying out inspection of soils on sites of skilled cultures, created on the salted soils and the salted soils carried to group are given. Results of researches of the four-year cultures planted on these soils are presented.
38-42 40
Abstract
On the territory of oilfield Kenkiyak defined levels of total and mobile forms of heavy metals in the light chestnut, and floodplain soils. Excess of the MCL was found on the mobile and the gross form of lead in the upper horizons, the excess of the unit content of mobile forms of copper and zinc, as well as the identity of the gross form of zinc content in the soil.
42-48 46
Abstract
Development of soda saline soils of the Ararat valley has certain difficulties caused by the great heterogeneity of the mechanical composition. According to the instructions, in the preparation of the soil for chemical melioration was provided after planning produce loosening depth of 60 cm, but there has not been determined by the heterogeneity of the lithological structure of soil. Our treatment of soil to a chemical melioration was carried out depending on mechanical composition and from the lithological structure, i.e. in the light and medium loam conducted plowing, with heavy loam - loosening up to 50 cm depth, and the mechanical clay composition - tillage to a depth of 100 cm. This method of soil processing to the chemical melioration gave a positive effect, the whole area (24 hectares) was fully meliorated, salts decreased to 0.2-0.4 % where a half of salts are caused by salts CaS04, MgS04, and exchange Na 2-3 mg EQ/100 g of soil. On the first year of agricultural development it is received on the average 23 c/ha of winter wheat, and on the second year - 60 c/ha of lucerne in the first year of cultivation.
49-52 47
Abstract
For the melioration of soda salt licks-saline of the Ararat valley of Armenia till the 80th of the last century used industrial wastes: sulfuric acid in the form of 1 % of solution and sulphate of iron in the form of a powder as under the shafts, and the checks, however, since 80th ferrous sulphate is not imported from other republics of the former Soviet Union, therefore, we as ameliorant under the shafts, and the checks used for the first time in Armenia concentrated sulfuric acid (80-82 %), which does not adversely affect the organic part of soil and microbiological processes.
53-57 47
Abstract
In investigated soils the leading position is occupied by collembolan (Collembola) making 61,5 % from total number of all components microartropod. Armor-clad pincers (Oribatei) made respectively - 30,7 %, Diplura - 7,7 %. The main congestion microartropod in the top layers (0-5 cm), except for option biocoal (a sprinkler irrigation), where number microartropod high in layers 5-10 see. The general dominating components which make bulk in the soil of skilled sites tells about their wide ecological plasticity.


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ISSN 1999-740X (Print)
ISSN 2959-3433 (Online)