نتایج جستجو برای: karoon
تعداد نتایج: 131 فیلتر نتایج به سال:
conclusions briefly, the current study represents a novel method to eliminate temephos as an organophosphate compound from water samples with modified zero-valent iron nanoparticles. background temephos is an organophosphate pesticide used as larvicide in the environment. although not extremely hazardous, it can be risky for human health in the moderate concentrations. objectives this study inv...
to evaluate the growth regulatory effect of chlormequat chloride (ccc) under drought stress conditions on three barley cultivars, a field study was conducted under badjgah agro climatic conditions (altitude 1810 m, longitude 52° 46´, and latitude 29° 50´) during 2003-2004 growing season. a randomized complete block based split- split plot of four replications was employed with two moisture leve...
Many sediment transport equations have been developed for estimation of the river sediment materials during the past four decades. There are significant differences in the results from these equations when applied to compute sediment transport for a specific river. Therefore, application of an equation for estimation of a river sediment load is not an easy task. In this study, 12 important sedi...
The aim of this study was to evaluate soil properties changes in a soil toposequence series in Khuzestan province. Twelve soil profiles were dug in north to south direction in this province, according to the changes of the slope in Karoon’s alluvial deposits. The results showed that soil texture regularly changes to heavier form from north to south. It was slightly of redoxomorphic featur...
سطح زیر کشت جو بهعلت تحمل به خشکی و شوری در سالهای اخیر در ایران افزایش یافته است. بهمنظور ارزیابی تعدادی از لاینهای امیدبخش جو تحت شرایط شور و معرفی لاینهای برتر، آزمایشی مزرعهای در دو سال کشت پیاپی (1390-1389 و 1391-1390) در شهرستان زریندشت انجام شد. در این آزمایش، رقم نیمروز بهعنوان شاهد بههمراه سیزده لاین امیدبخش جو در قالب طرح بلوک‌های کامل تصادفی با سه تکرار مورد مقایسه قرار گرفت...
Dam behavior investigation has been considered for a long time, with many studies conducted to identify and predict factors influencing such structures. In common dynamic analyses of dams, an input acceleration is typically used. At the same time, it was proved that such structures with a large contact with the ground usually experience different accelerations in their various supporting points...
hydrologists have always tried to classify atmospheric and hydrologic events in order to simplify the hydrologic convolutions and the observations or to save the time and the budget. most of these methods are used for the regionalization of hydrologic phenomena like rainfall,streamflow and other components of water cycle.multivariate techniques have been underlined as suitableand powerful tools...
Hydrologic drought which usually affects wide regions can be studied through Low flow index. In this study, to predict hydrologic drought in North Karoon watershed, 14 stations with suitable and long enough duration data were recorded in the 1387-88 water year. Then 13 physiographic and climatic characteristics of the chosen stations were used to perform homogeneity test for cluster analysis. 7...
Many sediment transport equations have been developed for estimation of the river sediment materials during the past four decades. There are significant differences in the results from these equations when applied to compute sediment transport for a specific river. Therefore, application of an equation for estimation of a river sediment load is not an easy task. In this study, 12 important sedi...
این پژوهش برای تعیین پایداری عملکرد بر روی 18 لاین امیدبخش جو و دو لاین شاهد شامل نصرت و MB-86-5 در شش منطقۀ معتدل شامل کرج، اصفهان، بیرجند، ورامین، زرقان و نیشابور بر پایۀ طرح بلوک‌های کامل تصادفی در سه تکرار و در دو سال زراعی (1388ـ 1390) انجام شد. بعد از انجام تجزیۀ مرکب، تجزیۀ پایداری با استفاده از روش گرافیکی و چند‌متغیره GGE biplot انجام شد. در این روش ژنوتیپهای 1، 2، 5 و 16 از پایداری ...
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