نتایج جستجو برای: agricultural drain
تعداد نتایج: 111933 فیلتر نتایج به سال:
Nitrate losses from subsurface tile drained row cropland in the Upper Midwest U.S. contribute to hypoxia in the Gulf of Mexico. Strategies are needed to reduce nitrate losses to the Mississippi River. This paper evaluates the effect of fertilizer rate and timing on nitrate losses in two (East and West) commercial row crop fields located in south-central Minnesota. The Agricultural Drainage and ...
The habitat of microorganisms is different from one to another, some are naturally found in water environment, others introduced due sources contamination. present study aimed characterize the bacterial community diverse resources Egypt relation contamination source pursued them. So, samples were collected seven resources; groundwater, Nile River water, agricultural drainage (El-Hussieniya drai...
Introduction: Seroma formation continues to be a problem for patients undergoing surgery of the breast or axilla for invasive breast cancer. In general, seroma usually disappears within several weeks; however, some patients are troubled by chronic seroma. Several techniques have been utilized to minimize seroma formation, with no consistent success. Considering the high prevalence of seroma in...
Passage of agricultural runoff through vegetated drainage ditches has been shown to reduce the amount of pesticides, such as atrazine, exiting out of agricultural watersheds. Previous studies have found that microbial communities in soil from fields treated with atrazine display enhanced rates of atrazine degradation. However, no studies have examined the potential for atrazine degradation in d...
Background & Aims: Inguinal hernia is one of the most common causes of surgery in the world. With increasing of age hernia prevalence rate increases so that in age over 70 years its prevalence gets at 50 percent. Different methods are described in hernia repair and each of them has its own advantages and disadvantages. At present the method of choice for inguinal hernia repair is the tension ...
The young-of-year (YOY) habitat of many fishes listed under the Species at Risk Act (SARA) is poorly described, yet identifying critical essential to ensure species recovery. Past research on Endangered spotted gar ( Lepisosteus oculatus Winchell, 1864) in Canada has focused use adults and juveniles, but little known about occurrence YOY. Dip net aquatic sampling were performed nearshore (lakef...
Introduction: The application of droun in clean orthopedic operations takes place usually without a scientific basis. The purpose of the present study is to evaluate the hemovacum drain efficacy in some of orthopedic operations related to trauma. Methods: In this experimental trial, 141 patients who were admitted to Dr. Bahonar Hospital, between September 2004 to April 2005, for surgical oper...
iran is ranked fourth for saline-sodic soils in asia following china, india and pakistan. therefore, if coupled with waterlogging, drainage would be an inevitable and indispensable activity agriculture in most irrigated parts of iran. drain installation depth is one of the main economic as well as environmental challenges in design and construction of drainage systems. deep pipe drain installat...
Elite migration and brain drain trend in Iran have undergone a dramatic ascent in the past few decades while we are seriously in need of educated manpower to help accomplish the 20-year national vision. So to consider brain drain is necessary and must be accounted by policymakers in all levels. In the upcoming paper, we study the brain drain as a social problem and elaborate a five-dimensional ...
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