نتایج جستجو برای: matric head

تعداد نتایج: 168598  

Journal: :Bulletin of the Australian Mathematical Society 2005

Journal: :مدیریت آب و آبیاری 0
میثم رمضانی دانشجوی کارشناسی ارشد، گروه مهندسی آبیاری و آبادانی، دانشکده آب و خاک، پردیس کشاورزی و منابع طبیعی، دانشگاه تهران بهزاد قنبریان علویجه دانشجوی دکتری آبیاری و زهکشی، گروه مهندسی آبیاری و آبادانی، دانشکده آب و خاک، پردیس کشاورزی و منابع طبیعی، دانشگاه تهران عبدالمجید لیاقت استاد گروه مهندسی آبیاری و آبادانی، دانشکده آب و خاک، پردیس کشاورزی و منابع طبیعی، دانشگاه تهران شکوفه صالحی خشکرودی دانش آموخته کارشناسی، گروه مهندسی آبیاری و زهکشی، پردیس ابوریحان، دانشگاه تهران

soil moisture retention curve is one of the soil hydraulic prosperities which its direct measurement is time consuming and expensive. therefore, indirect methods such as developing pedotransfer functions have been used to predict this characteristic from soil readily available or easily measurable data. in this study, multiple linear regression method was used to develop point pedotransfer func...

Journal: :Japanese Journal of Limnology (Rikusuigaku Zasshi) 1978

2010
G. P. Matthews G. M. Laudone A. S. Gregory N. R. A. Bird A. G. de G. Matthews W. R. Whalley

[1] Measurements have been made of the effect of compaction on water retention, saturated hydraulic conductivity, and porosity of two English soils: North Wyke (NW) grassland clay topsoil and Broadbalk silty topsoil, fertilized inorganically (PKMg) or with farmyard manure (FYM). As expected, the FYM topsoil had greater porosity and greater water retention than PKMg topsoil, and the NW clay tops...

2015
Juan Moral María Dolores Lozano-Baena Diego Rubiales

Orobanche crenata is a holoparasitic plant that is potentially devastating to crop yield of legume species. Soil temperature and humidity are known to affect seed germination, however, the extent of their influence on germination and radicle growth of those of O. crenata is largely unknown. In this work, we studied the effects of temperature, water potential (Ψt) and the type of water stress (m...

2000
Andrew Simon Andrea Curini Stephen E. Darby Eddy J. Langendoen

Gravitational forces acting on in situ bank material act in concert with hydraulic forces at the bank toe to determine rates of bank erosion. The interaction of these forces control streambank mechanics. Hydraulic forces exerted by flowing water on in situ bank-toe material and failed cohesive material at the bank toe are often sufficient to entrain materials at relatively frequent flows and to...

Journal: :Proceedings of the Institution of Civil Engineers - Geotechnical Engineering 2006

Journal: :Agronomy 2021

Potato is one of the most cropped plants worldwide. Hundreds different varieties are cultivated only in North America. growers usually crop multiple on their farms to answer market demands for potato’s specific physical properties. However, few pieces information available regarding optimal management irrigation across potato varieties. Knowing that modern potatoes share genetics similarities, ...

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