نتایج جستجو برای: 2005 five irrigation regime including dryland conditions

تعداد نتایج: 2239365  

Journal: :Current Journal of Applied Science and Technology 2020

Journal: :Agronomy 2022

Summer maize crop development, yield, and water use characteristics under deficit conditions at different growth stages were investigated in this study using irrigation regime treatments the seedling (S), jointing (J), tasseling (T), grain filling (F) 2018 2019 China. Ten set, including three-irrigation application intervals (JTFi, STFi, SJFi, SJTi), two-irrigation applications (STi, JTi, JFi),...

Journal: :علوم باغبانی 0
علی اسکندری حمیدرضا خزاعی احمد نظامی محمد کافی عباس مجدآبادی

abstract in order to study the effects of irrigation regimes on physiological traits, yield and water use efficiency of potato (solanum tuberosum l.) in mashhad weather condition, an experiment was conducted in 2009 at research field of the college of agriculture, ferdowsi university of mashhad, using factorial experiment based on randomized complete blocks design with 3 replications. experimen...

2006
Dennis Wichelns

Most current issues regarding water availability and water quality in agriculture have arisen due to increasing competition for limited resources and changes in public preferences regarding the environment. Demand for water has increased in recent decades with increases in population and income levels. Water supply has remained largely fixed due to natural conditions and a declining rate of inv...

     In order to study genetic variation and effect of drought stress on grain yield, some agronomical traits and 13 drought tolerance indices, an experiment was conducted on nine cultivars at Shahid Bahonar University of Kerman research field. The experimental layout was conducted in a randomized complete block design with three replications under two complementary irrigation and dryland condi...

G. McDonald G.S. Gill S.V. Eslami,

The effects of water stress on morphometric characteristics of wild radish seeds as well as the expression of its seed dormancy were investigated in a pot trial at Roseworthy, South Australia in 2005. This experiment was carried out in a completely randomised design with five water regimes (control, S4, S5, S6 and S8) and four replicates. The water stress was exerted by withholding irrigation a...

Journal: :Journal of theoretical biology 2017
Yuval R Zelnik Hannes Uecker Ulrike Feudel Ehud Meron

Understanding how desertification takes place in different ecosystems is an important step in attempting to forecast and prevent such transitions. Dryland ecosystems often exhibit patchy vegetation, which has been shown to be an important factor on the possible regime shifts that occur in arid regions in several model studies. In particular, both gradual shifts that occur by front propagation, ...

2015
Kico Dhima Ioannis Vasilakoglou Stefanos Stefanou Ilias Eleftherohorinos

A 2-year field study was conducted in northern Greece to investigate the effect of nitrogen fertilization and irrigation on productivity of three Greek chickpea varieties (“Amorgos” “Serifos”, “Andros”). Chickpea, grown under irrigation regime (30 + 30 mm of water) and fertilized with 50 kg·N·ha−1 before planting and with 40 kg·N·ha−1 at blossom growth stage, produced more total dry biomass and...

2009
K. Laoubi M. Yamao

In Algeria, liberalization reforms undertaken since the 1990s have resulted in negative effects on the development and management of irrigation schemes, as well as on the conditions of farmers. Reforms have been undertaken to improve the performance of irrigation schemes, such as the national plan of agricultural development (PNDA) in 2000 and the water pricing policy of 2005. However, after im...

Ali Asghari Ali Rasoulzadeh Hamidreza Mohamaddoust Chamanabad Masoumeh Nemati Omid Sofalian

Abstract To study the effect of water stress in rapeseed cultivars at the seedling stage, 10 rapeseed cultivars were evaluated at three irrigation levels [normal irrigation (control) and irrigation after depletion of 60 and 85% of available soil water]. Analysis of variance showed considerable variation among cultivars. Water stress reduced all of the studied morphological characteristics, espe...

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