نتایج جستجو برای: normal irrigation control and deficit irrigation

تعداد نتایج: 17049380  

Plant roots, with respect to their intrinsic characteristics, have important role in both improvement and development of germplasms of drought resistant plants. This experiment was conducted to study direct and indirect effects of root morphological traits on grain yield of four triticale genotypes (three promising lines of ET-82-8, ET-82-15 and ET-79-17 along with the conventional Junillo-92...

Effect of deficit irrigation on evapotranspiration, yield, water use efficiency and some growth parameters of Hamadanian pepper (Bivar) using a completely randomized design (CRD) with a full irrigation treatment (FI) and three deficit irrigation treatments (85, 70 and 55% application of water requirement; DI85, DI70, and DI55, respectively) in five replications was examined. Evapotranspiration ...

Journal: :علوم گیاهان زراعی ایران 0
علی سپهری استادیار، دانشگاه بوعلی سینا، دانشکده کشاورزی، گروه زراعت و اصلاح نباتات، تخصص: زراعت افشین کرمی دانشجوی ارشد

in order to study the effects of integrative applications of chemical fertilizers and biofertilizers on grain yield and oil of borago officinalis under water deficit stress, a field experiment was conducted at kermanshah, iran, in 2011. experiment was arranged as split plot under a randomized complete block design with 3 replications. water deficit stress with four levels was applied as the mai...

Journal: :بوم شناسی کشاورزی 0
میلاد شریف روحانی محمد کافی احمد نظامی

shallot (allium altissimum regel.) is a medicinal, industrial and perennial plant that has underground tubers. it is one of the most important allium species in iran, which normally grows in semi-cold to very cold highlands. because of being a wild plant, shallot is encounter with water deficit during its growth season. therefore evaluation of water requirement of shallot is important. in order...

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...

2007
R. L. Baumhardt

Increasing pumping costs and declining well capacities in regions like the Southern High Plains of Texas are requiring producers to adapt cropping practices for usewith irrigation levels that vary between complete replacement of crop evapotranspiration (ET) to none (i.e., dryland production). Grain sorghum [Sorghum bicolor (L.) Moench] is a crop suited to both dryland and various deficit irriga...

ژورنال: علوم آب و خاک 2001
حق‌ نیا, غلامحسین , علیزاده, امین , قربانی, قربانعلی ,

In order to compare the effect of drip and furrow irrigation methods with different quantities of water (50%, 75%, and 100% of the amount of water evaporated from class A pan evaporation during irrigation intervals) on yield and quality of tomato, an experiment was conducted on a silty loam soil in Mashhad Agricultural Research Station. The experimental design was a factorial trial with complet...

ژورنال: علوم آب و خاک 2001
زندپارسا, شاهرخ , سلطانی, غلامرضا , سپاس‌خواه, علیرضا ,

In this study, the optimum irrigation depths for corn grain production under different conditions, i.e. maximum grain yield production and maximum benefit under limited land and water conditions, were determined under sprinkler irrigation in Bajgah (15 km. north of Shiraz). The results showed that, the optimum depth of irrigation for maximum grain yield production was 77.0 cm. Because of low pr...

Journal: :علوم گیاهان زراعی ایران 0
سعیدرضا یعقوبی دانشکده کشاورزی دانشگاه تربیت مدرس، تهران مجید آقاعلیخانی دانشکده کشاورزی دانشگاه تربیت مدرس، تهران مجید غلامحسینی دانشکده کشاورزی دانشگاه تربیت مدرس، تهران کمال سادات اسیلان دانشگاه پیام نور کرج آریا دولت آبادیان دانشکده کشاورزی دانشگاه تربیت مدرس، تهران آیدین خدایی جوقان دانشکده کشاورزی دانشگاه تربیت مدرس، تهران احسان جمشیدی

in order to investigate the effects of composted manure and zeolite on efficacy of trifluralin in control of weed natural population in sunflower under different irrigation regimes, an experiment conducted in 2009 in tarbiat modares university, tehran, iran. a randomized complete block design in factorial arrangement with three replications was used. first factor was irrigation regimes that inv...

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