نتایج جستجو برای: sodic
تعداد نتایج: 679 فیلتر نتایج به سال:
The objectives of this study were to investigate the degree of spatial variability and variance structure of salinization parameters using classical and geostatistical method in Songnen Plain of China, which is one of largest saline-sodic areas in the World, and to analyze the relationship between salinization parameters, including soil salinity content (SC), electrical conductivity (EC), sodiu...
Biodiversity is a complex subject, and its many facets are dealt with differently by different end users and interested parties. Noss' (1990) definition distinguishes between structural, functional and compositional diversity at levels of organisation ranging from genes, to species and populations, to communities, ecosystems and landscapes. This conceptual framework helps to be explicit about w...
the main limiting factors in saline-sodic soils are high amounts of salts, low soil organic matter (som) and lowavailability of macro and micro-nutrients. the effect of different amounts of nano iron oxide powder and urban solidwaste compost coated sulfur (uswcs) on the chemical properties of a saline-sodic soil was investigated. the experimentwas conducted using a randomized complete block des...
This study was carried out to determine changes in hydraulic conductivity of a saline sodic soil subjected different wetting-drying cycles and treated wastewater after stabilized sludge sewage gypsum application. In factorial experimental design, the conducted with three replication by using 3 treatment doses (50, 100 150 t ha-1), (0, 7 14 days) 2 water types (fresh wastewater). The values satu...
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