نتایج جستجو برای: rainfed yield

تعداد نتایج: 195700  

2016
Daran Rudnick Suat Irmak D. R. Rudnick S. Irmak

With uncertainty in future irrigation water availability and regulations on nutrient application amounts, experimentally determined effects of “controllable” management strategies such as nitrogen (N), water, and their combination on crop water productivity (CWP, also known as crop water use efficiency) and actual evapotranspiration (ETa) are essential. The effects of various N application rate...

Journal: :علوم گیاهان زراعی ایران 0
محبوبه قاسمی دانشجوی سابق ارشد علی اشرف مهرابی استادیار دانشگاه ایلام خلیل فصیحی استادیار دانشگاه ایلام محمدمهدی پورسیابیدی مربی و رئیس بخش تحقیقات اصلاح و تهیه و نهال بذر ایلام

in order to study the effect of spraying of abscisic acid on yield and yield components of chickpea (cicer arietinum l.) under rainfed and supplementary irrigation, a field experiment was conducted in 2010 in agricultural research station of ilam university. a split factorial experiment based on a randomized complete block design was conducted. main plots were composed of two levels of irrigati...

Journal: :زراعت دیم ایران 0

in order to study physiological characteristics of rainfed bread wheat genotypes, an experiment was conducted with 20 genotypes in a randomized complete block design with 4 replications under rainfed and supplementary irrigation conditions. this experiment was carried out at the dryland agricultural research institute (dari) in maragheh during 2007-2008. to determine growth indices, sampling wa...

2015
Imran Khan Fida Mohammad Fahim Ullah Khan

Development of superior crop varieties is the prime objectives of all plant breeding programs. To determine genetic variability, heritability and genetic advance, 24 elite bread wheat lines were planted in randomized complete block design with three replications at the University of Agriculture, Peshawar under rainfed conditions. Data were recorded on days to heading, days to maturity, plant he...

Journal: :تحقیقات آب و خاک ایران 0
فاطمه بابائی دانشجوی دکتری علوم خاک، گروه علوم خاک، دانشکدة کشاورزی، دانشگاه زنجان علی رضا واعظی دانشیار گروه علوم خاک، دانشکدة کشاورزی، دانشگاه زنجان مهدی طاهری عضو هیئت علمی مرکز پژوهش های کشاورزی زنجان، زنجان احسان زرین آّبادی دانشجوی سابق کارشناسی ارشد علوم خاک دانشگاه زنجان سیده فاطمه اسلامی دانشجوی سابق کارشناسی ارشد علوم خاک دانشگاه زنجان

rainfed wheat is the main source of staple food for people in the developing countries. various factors contribute to and affect the production of this crop. the aim followed in the present study was to develop a model to estimate rainfed wheat grain yield as based on physico-chemical properties of the soil. therefore, wheat grain yield and soil physico-chemical properties were separately deter...

A.M. Stellacci F. Wassar M. Todorovic M.H. Sellami, R. Albrizio S.S. Yamaç V. Cantore

Potato grown for early or off-season production plays a crucial role in the economy of several areas in the Mediterranean countries. Irrigation is important for determining yield and earliness, thus a better investigation of plant response under various pedo-climatic conditions can help to improve resource use efficiency and farmer income. A two-year field research (2009-2010) was carried o...

In order to study the effects of supplementary irrigation and nano iron oxide on  the grain yield, and  some physiological and biochemical traits of wheat (Triticum aestivum L.) under rain fed conditions, a factorial experiment was conducted based on a  randomized complete block design with three replications in Agricultural Research Station of Ardabil, Northwest of Iran, in 2016. Factors inclu...

2011
Luis Santos Pereira

This study assesses the vulnerability of Bulgarian agriculture to drought using the WINISAREG model and seasonal standard precipitation index SPI(2) for the period 1951-2004. This model was previously validated for maize on soils of different water holding capacity (TAW) in various locations. Simulations are performed for Plovdiv, Stara Zagora and Sofia. Results relative to Plovdiv show that in...

Journal: :Remote Sensing 2013
Vikalp Mishra James F. Cruise John R. Mecikalski Christopher R. Hain Martha C. Anderson

Biophysical crop simulation models are normally forced with precipitation data recorded with either gauges or ground-based radar. However, ground-based recording networks are not available at spatial and temporal scales needed to drive the models at many critical places on earth. An alternative would be to employ satellite-based observations of either precipitation or soil moisture. Satellite o...

خلیلی, معروف , نقوی, محمدرضا, پورابوقداره, علیرضا,

In order to assessment of grain yield and some of morphological characters in safflower genotypes under irrigated and rainfed conditions fifteen spring safflower genotypes were studied using two separate experiments based on randomized complete block design with three replications in 2010-2011 growing season at Miandoab Research Station, Iran. Analysis of variance for each conditions revealed s...

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