نتایج جستجو برای: rainfed and deficit irrigation

تعداد نتایج: 16839624  

Journal: :International Journal of Current Microbiology and Applied Sciences 2022

Predicting attainable yield under water limiting condition is an important goal in rainfed agriculture. Proper irrigation planning not only essential for saving but also enhancement and it possible when accurate reliable decision-making tool has been adopted. AquaCrop one of the models extensively used purposes. To evaluate performance model, present experiment entitled on “Assessment model irr...

Journal: :علوم گیاهان زراعی ایران 0
ابوطالبیان شریف زاده محمد جهانسوز احمدی محمد نقوی

poor wheat stand establishment is a major cause of yield loss, particularly in rainfed and poorly irrigated environments. seeds of eight wheat cultivars (triticum aestivum l.) including irrigated and rainfed varieties, belonging to three different climates of iran (hamedan as cold, karaj as temperate and sarpolzohab as warm climates) were primed using osmoprimig treatments through use of urea ,...

2001
P. N. Rodrigues

To cope with droughts and water scarcity in semi-arid to sub-humid climates require the development of preparedness measures. For irrigated agriculture these include the identification of irrigation scheduling strategies that minimize the water demand with acceptable impacts on yields Those strategies may be produced by simulation and focus on different levels of water demand, from average to d...

Journal: :ISPRS Int. J. Geo-Information 2015
Micol Rossini Cinzia Panigada Chiara Cilia Michele Meroni Lorenzo Busetto Sergio Cogliati Stefano Amaducci Roberto Colombo

This study evaluates the potential of airborne remote sensing images to detect water stress in maize. Visible and near infrared CASI (Itres Research Ltd., Calgary, AL, Canada) and thermal AHS-160 (Sensytech Inc., Beverly, MA, USA) data were acquired at three different times during the day on a maize field (Zea mays L.) grown with three different irrigation treatments. An intensive field campaig...

ژورنال: علوم آب و خاک 2018

To evaluate the effect of supplemental irrigation and seed priming on yield and some quantity and quality characteristics of vetch (Vicia dasycarpa) rainfed maragheh cultivar, an experiment was carried out at the Research Farm of Faculty of Agriculture, University of Urmia, West Azarbaijan province, Iran, during 2011. The experiment was laid out using split-plot, based on Randomized Complete Bl...

ژورنال: علوم آب و خاک 2021

In areas with high rainfall distribution, proper irrigation management, including complementary irrigation, is one of the effective strategies to increase crop production. In order to investigate the effect of supplementary irrigation in different growth stages on the yield and water productivity of Autumn rapeseed, an experiment in the form of a complete randomized block design with five irrig...

Journal: :Remote Sensing 2013
Jonathan Van Beek Laurent Tits Ben Somers Pol Coppin

Remote sensing can provide good alternatives for traditional in situ water status measurements in orchard crops, such as stem water potential (Ψstem). However, the heterogeneity of these cropping systems causes significant differences with regards to remote sensing products within one orchard and between orchards. In this study, robust spectral indicators of Ψstem were sought after, independent...

Nejatkhah, , Rafiei, , Sarshad, , Talei, , Torabi, ,

In order to investigate the effect of water deficit tension on different growth stages on yield, yield components and produced grain quality of sorghum seeds cultivars,  an experiments was performed as split plots based on randomized complete blocks design with four replications in Isfahan Ghiam Cultivation and Cattle Farm Company in 2017. The main factor including irrigation cut at four levels...

In this study, a model was developed to determine the optimal irrigation schedule for the Qazvin Plain in such a way that economic productivity is maximized with the amount of water available and the area under cultivation. The AquaCrop plant growth model was used to determine crop performance in different irrigation programs. The plant growth model was connected to the MATLAB programming envir...

Arash Roozbahani, Mohammad Reza Akhavan Mohseni Saeed Reza Yaghoobi

This research was conducted to evaluate effect of potassium and iron fertilizers on agro-physiological traits affected different irrigation regime of corn in Shahryar (Tehran province, central of Iran) via a split-split plots arrangement based on randomized complete blocks design with three replications during 2015. The main plot included different irrigation regime (Normal irrigation and stop ...

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