نتایج جستجو برای: while under deficit irrigation

تعداد نتایج: 2066132  

ژورنال: علوم آب و خاک 2019

Shortage of irrigation water is a major problem constraining in agricultural production in arid and semi-arid regions. Deficit irrigation is one way to cope with water scarcity and increase water use efficiency. Determining the optimum applied water based on economic analysis is a major key to the deficit irrigation strategy. In this study, the required equations were derived to determine the o...

To study the effect of bacterial siderophore on the second crop of maize (SC645) under drought stress conditions, a split-factorial experiment, arranged in a randomized complete block design with three replications was conducted in Faculty of Agriculture, Vali-e-Asr University of Rafsanjan at summer 2014. Sampling time was considered as main factor. Five samplings were performed after imposing ...

Investigating the crop response to the deficit irrigation and evaluating the effect of drought stress on plant is one of the most important issues in crop production. In these circumstances, the use of organic fertilizers can play a mitigative role. Hence, an experiment was laid out as split plot based on randomized complete blocks design with three replications in Research Farm of University o...

Journal: :Environmental Modelling and Software 2016
Dilini Delgoda Hector M. Malano Syed Khusro Saleem Malka N. Halgamuge

This research proposes A THEORETICAL FRAMEWORK based on model predictive control (MPC) for irrigation control to minimize both root zone soil moisture deficit (RZSMD) and irrigation amount under a limited water supply. We (i) investigate means to incorporate direct measurements to MPC (ii) introduce two Robust MPC techniques e Certainty Equivalence control (CE) and Disturbance Affine Feedback C...

In order to investigate the effect of deficit water stress and different combinations of relay intercropping of chickpea with barley on some biochemical traits and grain yield, a field experiment was conducted at College of Agriculture and Natural Resources of Darab, Shiraz University during 2017-2018 cropping season, as split plot based on a randomized complete block design with three replicat...

Journal: :پژوهش های حبوبات ایران 0
آرش پاک مهر مهدی راستگو فرید شکاری جلال صبا مریم وظایفی اسماعیل زنگانی

effects of seed priming by salicylic acid on yield and yield components of cowpea (vigna unguiculata) cultivar “parastou” were investigated under water deficit conditions. experiment was carried out as a split block design with three replications in 2008-2009 at research station of zanjan university. factors included drought stress as main factor with three levels (normal irrigation, applicatio...

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...

2014
Marcelo R. dos Santos Mauro A. Martinez Sérgio L. R. Donato Eugênio F. Coelho

This study aimed to evaluate the fruit yield and the distribution of ‘Tommy Atkins’ mango root system under different irrigation regimes in the semiarid region of Bahia. The experimental design was completely randomized with five treatments and three replicates: 1 Irrigation supplying 100% of ETc in phases I, II and III; 2 Regulated deficit irrigation (RDI) supplying 50% of ETc in phase I (begi...

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