نتایج جستجو برای: sodic soils in asia following china

تعداد نتایج: 17092394  

2017
Dennis L. Corwin Kevin Yemoto Wes Clary Gary Banuelos Todd H. Skaggs Scott M. Lesch Elia Scudiero

Though more costly than petroleum-based fuels and a minor component of overall military fuel sources, biofuels are nonetheless strategically valuable to the military because of intentional reliance on multiple, reliable, secure fuel sources. Significant reduction in oilseed biofuel cost occurs when grown on marginally productive saline-sodic soils plentiful in California's San Joaquin Valley (S...

This paper tries to address the impact of the Shanghai Cooperation Organization on Central Asian security. This organization was established on April 26, 1996 to settle security and territorial disputes between China and Russia and Central Asian countries (other than Uzbekistan and Turkmenistan). After the accession of Uzbekistan to this assembly, the level of the organization was promoted, and...

This paper tries to address the impact of the Shanghai Cooperation Organization on Central Asian security. This organization was established on April 26, 1996 to settle security and territorial disputes between China and Russia and Central Asian countries (other than Uzbekistan and Turkmenistan). After the accession of Uzbekistan to this assembly, the level of the organization was promoted, and...

Journal: :مدیریت خاک و تولید پایدار 0
شهرام منافی دانشگاه ارومیه رده بندی ساغر چاخرلو دانشجوی کارشناسی ارشد احمد حیدری عضو هیات علمی دانشگاه تهران

micromorphology is the branch of soil science that is concerned with the description, interpretation and, to an increasing extent, the measurement of components, features and fabrics in soils at microscopic level. the advantage of micromorphology is that, in micromorphological studies the soils are studied in their natural and undisturbed form and so, one can follow the processes that take plac...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس 1389

abstract: country’s fiber optic network, as one of the most important communication infrastructures, is of high importance; therefore, ensuring security of the network and its data is essential. no remarkable research has been done on assessing security of the country’s fiber optic network. besides, according to an official statistics released by ertebatat zirsakht company, unwanted disconnec...

Journal: :Dong wu xue yan jiu = Zoological research 2015
Li-Jiang Yu Ai-Wu Jiang Fang Zhou

Since 1980, the white-browed crake (Porzana cinerea) has been experiencing an expansion from south of the Isthmus of Kra, northward to China. Recently, this species was observed in several locations throughout Southwest China, including Ningming and Baise, Guangxi (2012, 2013), and Xichang, Sichuan (2013). These sightings are the first distribution record of this species in mainland China, sugg...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علامه طباطبایی - دانشکده ادبیات و زبانهای خارجی 1389

در طول دو قرن گذشته و ظهور روسیه بعنوان قدرتی بزرگ در عرصه جهانی و شروع رقابت با سایر قدرت های بین المللی و منطقهای خصوصا با ایران و عثمانی این ئکشور تلاش کرده است تاد از جمعیت کردها در این کشورها در راستای منافع خود بهره برداری کند در قرون 18 و 19 بارها بخشی از کردها برعلیه امپراطوری عثمانی توسط این کشور مورد استفاده قرار گرفت خصوصا در جنگ های سال 1790تا 1798. این ججنگ ها م.جب شد که بخشی از کر...

Journal: :Biomedical Journal of Scientific and Technical Research 2023

Soil salinity is a key abiotic stressor that negatively impacts plant growth and restricts land use by causing degradation (Gamalero, et al. [1]). Saline sodic soils are characterized their high soluble salt content pH, respectively, which result in imbalances nutrient cycling reduced organic content, carbon stocks, microbial activity the soil [3].

پایان نامه :0 1374

the rationale behind the present study is that particular learning strategies produce more effective results when applied together. the present study tried to investigate the efficiency of the semantic-context strategy alone with a technique called, keyword method. to clarify the point, the current study seeked to find answer to the following question: are the keyword and semantic-context metho...

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