نتایج جستجو برای: subsurface drip irrigation in 30 cm depth sdi30

تعداد نتایج: 17084750  

ژورنال: علوم آب و خاک 2012
محمد اسماعیل اسدی, , پریسا شاهین رخسار, ,

Modification of irrigation scheduling and management improvement of irrigation systems are two essential factors that have significant impact on agricultural water use efficiency. Therefore, a field experiment was conducted to evaluate the effect of tape drip irrigation (T) and furrow irrigation systems (S) under different irrigation regimes on yield and yield components of soybean in growing s...

Journal: :مدیریت آب و آبیاری 0
محمد ذونعمت کرمانی استادیار بخش مهندسی آب، دانشکدة کشاورزی، دانشگاه شهید باهنر کرمان، کرمان، ایران رسول اسدی مدرس گروه کشاورزی دانشگاه پیام نور، تهران، ایران

in order to investigate the effect of soil matric potential and tube layout on yield and water use efficiency of greenhouse cucumber, a field experiment was carried out during 2010 and 2012 growing seasons at an experimental farm in jiroft territory. the treatments were laid out in strip split plot a randomized complete block design with three replications. the treatments were comprised of fore...

ژورنال: علوم آب و خاک 2012
محدثه حسینی‌نیا, , محسن ایراندوست, , شهرام کریمی گوغری, , هرمزد نقوی, ,

Knowing about the way water is distributed in the soil is essential for designing and managing the Subsurface Drip Irrigation systems (SDI). Since carrying out experiments to recognize the form of moisture distribution in the soil is too complicated and time-consuming, using numerical simulations can be an efficient, effective substitute method to design these systems. One of these models is HY...

Journal: :آب و خاک 0
حجت قربانی واقعی حسین علی بهرامی رضا مظهری علی حشمت پور

introduction: maintaining soil moisture content at about field capacity and reducing water loss in near root zone plays a key role for developing soil and water management programs. clay pot or porous pipe is a traditional sub-irrigation method and is ideal for many farms in the world’s dry land with small and medium sized farms and gardens and is still used limitedly in dry lands of india, ira...

Journal: :چغندرقند 0
مصطفی حسین پور دانشجوی مقطع دکتری رشته زراعت دانشگاه تربیت مدرس

drip irrigation is the most efficient technique known for improving irrigation water management. a two-year study was conducted to determine the effects of drip and furrow irrigation methods on yield and quality of sugar beet in north of khuzestan. in the first year, the experimental design was a completely randomized block design with three replications. treatments were, three drip irrigation ...

N. Patel T.B.S. Rajput

Indiahas the largest area under onion (Allium cepa) crop but its average productivity (14.21 t ha-1) is considerably lower than the world’s average of 19.4 t ha-1. Besides low productivity, irrigation efficiencies are also very low i.e. 30-35% in India. Managing onion crop with less than adequate irrigation water availability is a challenge in several parts of the country. Options of i) deficit...

2014
S. H. Liu Y. H. Kang

A field experiment was carried out to study the changes of soil bacteria, fungi and actinomycetes in saline-sodic soils for different numbers of cultivated years under drip irrigation. The drip irrigation had substantial effects on levels of bacteria, fungi and actinomycetes. With increased number of cultivated years under drip irrigation, the soil biological properties were greatly improved. A...

2016
Jianguo Zhang Xinwen Xu Shengyu Li Ying Zhao Afeng Zhang Tibin Zhang Rui Jiang

Freshwater resources are scarce in desert regions. Highly saline groundwater of different salinity is being used to drip irrigate the Taklimakan Desert Highway Shelterbelt with a double-branch-pipe system controlling the irrigation cycles. In this study, to evaluate the dynamics of soil moisture and salinity under the current irrigation system, soil samples were collected to a 2-m depth in the ...

Journal: :تحقیقات مهندسی کشاورزی 0
آرش محجوبی مدیر دفتر فنی و مهندسی شبکه های آبیاری و زهکشی سازمان آب و برق خوزستان عدنان صادقی لاری استادیار گروه مهندسی آب دانشکده کشاورزی و منابع طبیعی دانشگاه هرمزگان

sugarcane, which has high water requirements, is grown in khuzestan province (iran). climate and optimizing the use of water is very important to sustainable cultivation of sugarcane. studies of water requirements for sugar cane in khuzestan show that in parts of sugarcane agro-industry, the water applied is more than the actual water requirement of the plant. the present study was conducted to...

Journal: :آب و خاک 0

abstract in order to study the effects of cultivation method and water quantities in drip irrigation on yield of potato, an experiment was carried out using a split plot based on randomized complete block design with 4 replications in torogh agricultural research station (mashhad, iran) for tow years (2001 and 2002). the main-plots were divided into 3 levels of irrigation: i1= 100, i2= 80 and i...

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