نتایج جستجو برای: rainfed and deficit irrigation

تعداد نتایج: 16839624  

عالمی‌سعید, خلیل, بخـشنده, عبدالمهدی, بهنام‌فر, کورش, سـیادت, سید عطااله, کاشفی‌پور, سید محمود , ‌اشرف جعفری, علی,

In order to investigate the effect of water deficit on yield and morphological characteristics of four alfalfa cultivars an experiment was conducted as a split plot in randomized complete block design with 3 replications in Agriculture Research Center of Khuzestan, Ahwaz, Iran, during 201l-2012. Main plots included irrigation regimes (normal irrigation, irrigation at 50% available water content...

Abstract: To investigate the effect of nutrition management along with zeolite application on the fertilizer use efficiency and irrigation water productivity of two cultivars of maize under deficit irrigation conditions, a field experiment was carried out. The experiment was conducted at Soil and Water Research Institute, Karaj, Iran, in 2015 and 2016, in the form of a   factorial split plot...

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 ...

2015
N. R. Modala S. Ale N. Rajan C. L. Munster P. B. DeLaune K. R. Thorp S. S. Nair E. M. Barnes

Cotton is one of the major crops cultivated in the Texas Rolling Plains region, and it is a major contributor to the regional economy. Cotton cultivation in this region is facing severe challenges due to an increase in the frequency of droughts and a projected decrease in rainfall in the future. Development and evaluation of deficit irrigation strategies for this region could potentially conser...

Journal: :Journal of Pharmacognosy and Phytochemistry 2020

Journal: :iran agricultural research 2015
m. m. moghimi a. r. sepaskhah

abstract- efficient use of irrigation water for summer crops should be considered seriously due to rare occurrence of precipitation in summer. this research was focused on the assessment of water use efficiency for dominant crops of summer cropping pattern in the study area (i.e., maize and rice) via considering water productivity (wp) with different water management scenarios at farm level at ...

Journal: :Mathematical and Computer Modelling 2011
Jing Jiang Shaoyuan Feng Zailin Huo Zhicai Zhao Bin Jia

The agro-hydrological Soil–Water–Atmosphere–Plant (SWAP) model was calibrated and validated to simulate water–salt transport based on field experiments in an arid region of China. The simulation results show lower soil water content but higher salt concentration under deficit irrigation. Soil water and salinity below 95 cm at 80% evapotranspiration (ETc ) treatments and 65 cm at 60% ETc treatme...

Journal: Desert 2016
Gh.R. Afsharmanesh H. Heidari Sharafabad H. Sarhadi J. Daneshian S.A. Valadabadi

     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 ...

Journal: :Horticulturae 2023

Olive oil is one of the basic products in Mediterranean diet, and, due to its nutritional value, it becoming more and widespread world. Even though has traditionally been a rainfed crop, farmers are currently transforming their plantations into super-high-density orchards increase production. However, increasingly acute drought countries forces establishment water control mechanisms that allow ...

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 ...

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