نتایج جستجو برای: sodic
تعداد نتایج: 679 فیلتر نتایج به سال:
the soil particles and aggregates. Dispersion or flocculation of clays occurs because of the repulsion of similar Reclamation of sodic soils is imperative in many areas where detericharged clay platelets and the ability of the soil solution oration of land and water resources is in progress. While the chemical mechanisms involved in the reclamation of sodic soils are well deto mitigate this rep...
Introduction. Plagioclase feldspar has been identified as the dominant mineral phase in the martian crust [1-2] through analysis of Mars Global Surveyor Thermal Emission Spectrometer (TES) data. Martian meteorites , samples of isolated terrain on Mars, contain plagioclase in abundances secondary only to pyroxene. Terrestrial basalts and andesites contain primary plagioclase that is calcic-inter...
The north western part of volcano-sedimentary complex of Davazdah-Emam mountain in north of Central Iran is located about 135 km SE Tehran. The Eocene to Oligocene volcanic rocks and dikes of intermediate to mainly basic of complex under the influence of hydrothermal fluids, probably associated with the involvement of meteoric water, experienced different degrees of alteration. The alteration o...
The studied shear zone is located in E-Qorveh (Kurdistan). The rocks of this zone are granite and granodiorite in composition. In present paper, deformed rocks, protomylonites and mylonites, are investigated in Sangin-Abad, Koh-e-Gazgaz and Poloserkan areas. Petrographic studies show that evidence of tectonic activities are such as myrmekite, recrystallized and slide alkali feldspars, fractured...
Bui's commentary [1] arises from an observation made in our paper on the evolution of salt tolerance in grasses. We described the 'paradox' of salt tolerance ; that it evolves often in nature but is hard to breed into crops [2], although there has been recent success in increasing the tolerance of wheat on salt-affected soils in Australia [3]. Bui suggests that one reason for lack of success in...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید