نتایج جستجو برای: keywords deficit irrigation scheduling

تعداد نتایج: 2131346  

رضایی, محمد, سرخی لله لو, بهزاد, مجیدی, عزیز, محمدی, سلیمان,

Identification and introduce of high potential and water deficit stress tolerant is one of effective methods that caused to economic production beside other methods of water deficit management. In order to identification of barley lines, 9 barley elite lines and Bahman variety (check) studied under full irrigation and water deficit stress conditions in season cropping years 2013-2015. The resul...

ژورنال: علوم آب و خاک 2016
جمشیدی , سجاد , فروهرفر, فریده , نوشادی, مسعود ,

Evaluation of pollutant transportation in soil is important from different environmental aspects such as soil and groundwater contamination. The purpose of this study is to measure 2, 4-D concentrations in a silty loam soil under two different treatments (normal and deficit irrigation) in a corn field and simulate the results using the PRZM-3 and LEACHP models. Total concentrations of 2, 4-D in...

Journal: :تحقیقات آب و خاک ایران 0
مهرداد نوروزی عضو هیات علمی مرکز تحقیقات کشاورزی و منابع طبیعی استان بوشهر مختار زلفی باوریانی عضو هیات علمی مرکز تحقیقات کشاورزی و منابع طبیعی استان بوشهر

proper irrigation scheduling, i.e. timely and adequate irrigation is an important prerequisite to profitable crop production. high temperatures along with soil moisture deficits are some of the main limiting factors for canola (b. napus l.) production in dry land cropping systems. these factors negatively affect the formation of pods during the flowering stage, resulting in decrease in seed yie...

Journal: :مدیریت آب و آبیاری 0
محسن افاضاتی کارشناسی ارشد آبیاری و زهکشی، گروه مهندسی آب، دانشکدۀ فنی و کشاورزی، دانشگاه آزاد اسلامی، واحد کرمان، کرمان، ایران محسن ایران دوست استادیار گروه مهندسی آب، دانشکدۀ فنی و کشاورزی، دانشگاه آزاد اسلامی واحد کرمان، کرمان، ایران عباس رضایی استخروییه استادیار گروه مهندسی آب، دانشکدۀ کشاورزی، دانشگاه شهید باهنر کرمان، کرمان، ایران

this study was performed in order to evaluate the effects of application of super absorbent on the yield and water use efficiency of cucumber under deficit irrigation conditions in greenhouse. plants cultivated in plastic pots and irrigation emitter with four liters per hour discharge was performed. three levels of irrigation water height (10, 8.3 and 6.2 mm day-1) were used as the main factor ...

Journal: :آب و خاک 0
مریم حمزه زاده پرویز فتحی تیمور جوادی عباس حسنی

abstract due to limited water resources and occurrence of recent droughts, the use of new management and planning methods for optimal irrigation scheduling of agricultural crops is inevitable. present of appropriate mathematical and dynamic relationship between yield, evapotranspiration and water use efficiency parameters is the first and most important step in the optimal management of irrigat...

Journal: :desert 0
h. sarhadi islamic azad university of takestan, qazvin, iran j. daneshian agricultural research, education and extension organization, qazvin, iran s.a. valadabadi islamic azad university of takestan, qazvin, iran h. heidari sharafabad professor, science and research branch, islamic azad university, tehran, iran gh.r. afsharmanesh research, education and natural resources center, southern kerman, iran

for investigation deficit irrigation and nitrogen application effect on nutrients uptake of henna ecotypes, this research was conducted in the form of split-split-plot on the basis of randomized complete block design with four replications in the research field of islamic azad university, jiroft, iran in 2013-2014. the main, sub and sub-sub plot were deficit irrigation (100, 75 and 50% of crop ...

Journal: :international journal of epidemiology research 0
mohammad reza mostafaee department of pediatric nursing, school of nursing and midwifery, qazvin university of medical sciences, qazvin, iran. mostafa shokati department of medical surgical nursing, school of nursing and midwifery, qazvin university of medical sciences, qazvin, iran. ramin sarchami department of medical education, school of medicine, qazvin university of medical sciences, qazvin, iran. hossein rafiei department of medical education, school of medicine, qazvin university of medical sciences, qazvin, iran.

abstract background and aims: attention deficit hyperactivity disorder (adhd) is the most prevalent disorder in children. due to the importance of the disorder in children and its complications, this study aimed to assess the relation of the disorder with demographic factors in students of schools located in the hamadan city, west of iran. methods: in this study, 1000 students were selected thr...

2013
Mahmoud A. Wahb-Allah Abdullah A. Alsadon Abdullah A. Ibrahim

Growth and production of agricultural crops are greatly affected by water shortage. Thus, yield enhancement under drought conditions is a major goal of plant breeding. Four commercial tomato cultivars (Imperial, Pakmore VF, Strain-B and Tnshet Star), a drought-tolerant breeding line (L 03306) and their hybrid combinations were selected in this study to evaluate drought tolerance and to develop ...

A.R. Sepaskhah, R. Talebnejad

Rice is an essential crop in Iran that is grown mostly in areas where depth to groundwater is low. Root growth and water uptake of rice under shallow groundwater has not been thoroughly studied. This experiment was conducted to determine the lowland rice (cv. Ghasrodashti) root distribution above shallow groundwater in relation to deficit irrigation and groundwater depth in cylindrical gre...

Journal: :به زراعی کشاورزی 0
زهرا مهرابی زاده دانشجوی کارشناسی ارشد، گروه زراعت و اصلاح نباتات، دانشکده کشاورزی، دانشگاه صنعتی اصفهان، اصفهان پرویز احسان زاده دانشیار، گروه زراعت و اصلاح نباتات، دانشکده کشاورزی، دانشگاه صنعتی اصفهان، اصفهان

sesame could be an appropriate oilseed crop for water limited environments. this research was aimed at studying growth, leaf chlorophyll fluorescence, proline content, yield and yield components of sesame cultivars under different moisture regimes. a 4-replicate split plot rcbd field experiment was conducted at the lavark research farm, college of agriculture, isfahan university of technology, ...

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