نتایج جستجو برای: density plastic irrigation pools

تعداد نتایج: 519360  

Journal: :علوم گیاهان زراعی ایران 0
سعیدرضا یعقوبی دانشکده کشاورزی دانشگاه تربیت مدرس، تهران مجید آقاعلیخانی دانشکده کشاورزی دانشگاه تربیت مدرس، تهران مجید غلامحسینی دانشکده کشاورزی دانشگاه تربیت مدرس، تهران کمال سادات اسیلان دانشگاه پیام نور کرج آریا دولت آبادیان دانشکده کشاورزی دانشگاه تربیت مدرس، تهران آیدین خدایی جوقان دانشکده کشاورزی دانشگاه تربیت مدرس، تهران احسان جمشیدی

in order to investigate the effects of composted manure and zeolite on efficacy of trifluralin in control of weed natural population in sunflower under different irrigation regimes, an experiment conducted in 2009 in tarbiat modares university, tehran, iran. a randomized complete block design in factorial arrangement with three replications was used. first factor was irrigation regimes that inv...

Journal: :علوم گیاهان زراعی ایران 0
عباس غفوری دانشگاه صنعتی اصفهان مرتضی زاهدی دانشگاه صنعتی اصفهان حسن کریم مجنی دانشگاه صنعتی اصفهان

a field experiment was conducted in research farm of isfahan university of technology, isfahan, iran in 2011 . various weeding periods were investigated on growth and yield of potato under drip tape and furrow irrigation systems. a split plot arrangement was used in a randomized complete block design with three replications. irrigation treatments were included in main plots and periods of weed ...

Journal: Pollution 2016

This study assessed the chemical and microbial contents in the water of public swimming pools in Akwa Ibom State, Nigeria. A total of 16 public pools were selected through probability sampling from the 32 pools that existed in the five urban areas of Akwa Ibom State. Water samples were collected from the sampled pools and tested in the laboratory for chemical and microbial contents. Results sho...

Journal: :Journal of vector ecology : journal of the Society for Vector Ecology 2008
Daniel E Impoinvil Joseph Keating Charles M Mbogo Matthew D Potts Rinku Roy Chowdhury John C Beier

In this study we 1) describe the abundance of Anopheles and culicine immatures in different water body types in urban Malindi, Kenya, 2) compare Anopheles immature density in relation to culicine immature density, and 3) identify characteristics that influence the likelihood of water bodies being co-colonized by Anopheles and culicines. Entomological and environmental cross-sectional surveys co...

Journal: :آب و خاک 0

abstract this study was conducted to determine the impacts of plastic mulch, drip irrigation method and different amount of water and their interactions on yield, water use efficiency (wue) and quality characteristic of tomato (mobile cultivar). the study was conducted in torogh agricultural research station, razavi khorasan province. the study was done during 2007-2008. experimental design was...

Journal: :journal of research in health sciences 0
rasool yousefi-mashouf mohammad reza samarghandi alireza rajabinegad maryam ahmadi faezeh nazarieh

background: many studies have been showed that certain illnesses including fungi and bacterial infections can be transmitted to human by contaminated swimming pools water. the main objective of the present study was to detect microbial (bacterial and fungi) and chemical (ph and chlorine levels) pollutions of the all swimming pools water in hamadan city, iran . methods: this study was a cross-se...

2011
Karl S. Zimmerer

Spate irrigation is increasingly recognized as contributing to potential of accessible water-resource use, local food production, and resource sustainability. This study constructs an approach to spate irrigation as a landscape technology by selectively fusing concepts of resilience ecology, political ecology, and actor-network theory. It is applied to a case study of the Calicanto area (Cochab...

Journal: :Bioresource technology 2009
Keri B Cantrell Kenneth C Stone Patrick G Hunt Kyoung S Ro Matias B Vanotti Joseph C Burns

Coastal bermudagrass (Cynodon dactylon L.) may be a potentially important source of bio-based energy in the southern US due to its vast acreage. It is often produced as part of a waste management plan with varying nutrient composition and energy characteristics on fields irrigated with livestock wastewater. The objective of this study was to determine the effect of subsurface drip irrigation wi...

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