Quality of Irrigation Waters of the Alkali Infested Areas in Allahabad, India

1963 ◽  
Vol 27 (3) ◽  
pp. 210-214
Author(s):  
A. K. BANERJEE
Keyword(s):  
Irrigation Waters

Irrigative assessment of Sasyk water quality

2021 ◽  
Vol 6 (2) ◽  
pp. 69-77
Author(s):  
Serhii Yurasov ◽  
◽  
Viktoriia Kuzmina ◽  
Vitalii Karaulov ◽  
◽  
...  
Keyword(s):  
Water Quality ◽  
Bottom Sediments ◽  
Formation Process ◽  
Magnesium Ions ◽  
Artificial Lake ◽  
Salty Water ◽  
Water Conditions ◽  
Freshwater Reservoir ◽  
Irrigation Waters

The article is dedicated to the problem of artificial Lake Sasyk which was transformed from a salty water estuary into a freshwater reservoir at the expense of the Danube waters. In the first decades, the irrigative water conditions were not achieved due to the arrival of salts from the bottom sediments. Currently, the water quality formation process in Lake Sasyk has stabilized, but the problem of land irrigation remains urgent. The article gives an irrigation assessment of the quality of the Sasyk reservoir according to various methods considering observations in the HPS-2 region from 2007 to 2017. A detailed typification of irrigation waters based on Alekin O. A. water typing is proposed. It was found that mineralization and the content of sodium and magnesium ions in the Sasyk waters promote salinization and alkalinization of soils. For the safe use of this water for irrigation, both chemical reclamation and dilution with water are necessary.

scholarly journals STUDY OF QUALITY OF THE IRRIGATION CANALS IN AZERBAIJAN

2019 ◽  
pp. 10-14
Author(s):  
Saida Aliyeva ◽  
Nariman Ismayilov
Keyword(s):  
Sustainable Development ◽  
Pure Water ◽  
Irrigation Canals ◽  
Inorganic Pollutants ◽  
Irrigation Waters

The waters of the Kura River and the irrigation canals are phytotoxic and reduce the percentage of germination of cress-salad and barley seeds in comparison with pure water by 10-12%. After cleaning them on adsorbents, waters lose the phytotoxicity properties. This makes it necessary to solve the problems of cleaning irrigation waters from organic and inorganic pollutants in order to achieve sustainable development of agriculture in the country.

Immunoferritin localization of intracellular antigens in positively stained frozen sections

1978 ◽  
Vol 36 (2) ◽  
pp. 168-169
Author(s):  
K. T. Tokuyasu
Keyword(s):  
Surface Tension ◽  
Water Surface ◽  
Thin Layers ◽  
The Other ◽  
Positive Staining ◽  
Frozen Sections ◽  
The Past ◽  
Ultrathin Frozen Sections ◽  
Definition Of

During the past investigations of immunoferritin localization of intracellular antigens in ultrathin frozen sections, we found that the degree of negative staining required to delineate u1trastructural details was often too dense for the recognition of ferritin particles. The quality of positive staining of ultrathin frozen sections, on the other hand, has generally been far inferior to that attainable in conventional plastic embedded sections, particularly in the definition of membranes. As we discussed before, a main cause of this difficulty seemed to be the vulnerability of frozen sections to the damaging effects of air-water surface tension at the time of drying of the sections.Indeed, we found that the quality of positive staining is greatly improved when positively stained frozen sections are protected against the effects of surface tension by embedding them in thin layers of mechanically stable materials at the time of drying (unpublished).

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