نتایج جستجو برای: i2 irrigation in boll stage

تعداد نتایج: 17019868  

Journal: :تولید گیاهان زراعی 0
امید محسن نیا دانش آموخته کارشناسی ارشد گروه زراعت و اصلاح نباتات، دانشگاه ارومیه جلال جلیلیان استادیار گروه زراعت و اصلاح نباتات، دانشگاه ارومیه

in this study, the effect of irrigation regimes and plant nutrition were evaluated as split plot arrangment based on randomized complete block design with three replications in 2010. treatments consisted of irrigation regimes at three levels: well-irrigation, irrigation disruption at vegetative growth stage, and irrigation disruption at reproductive growth stage as main plots and combination of...

ژورنال: :تحقیقات آب و خاک ایران 2012
مسعود سلطانی عبد المجید لیاقت عباس ستوده نیا

supplementary irrigation is one of the most effective field management practices to improve water productivity and crop yield in rainfed conditions. time of supplementary irrigation is another important parameter affecting the enhancement of yield. in order to study the effect of supplementary irrigation time as well as planting date, two factors, namely: 1) supplementary irrigation (no irrigat...

Journal: :پژوهش های زراعی ایران 0
سارا افشانی رضا امیرنیا هاشم هادی

in order to study effect of foliar application of iron and zinc on yield and yield components of autumn rapeseed (brassica napus l.) under limited irrigation an experiment was conducted at research farm of agricultural faculty of urmia university in 2009. the experiment was designed in split plot based on randomized complete block design with 3 replications. treatments were drought (irrigation ...

Journal: :پژوهش آب در کشاورزی 0
محمد ذونعمت کرمانی استادیار گروه مهندسی آب، دانشکده کشاورزی، دانشگاه شهید باهنر کرمان، کرمان، ایران. رسول اسدی مدرس گروه کشاورزی، دانشگاه پیام نور، تهران، ایران . حسین دهقانی سانیج دانشیار پژوهش، دیسیپلین آبیاری و زهکشی، موسسه تحقیقات فنی و مهندسی کشاورزی.

due to limitation of conventional water resources, the use of unconventional water for agriculture is unavoidable. therefore, in order to investigate the effect of using different amounts of municipal wastewater on yield, yield components and water use efficiency of cotton in drip irrigation systems, a field experiment was carried out during 2010 and 2011 growing season at experimental farm of ...

Journal: :Agronomy 2022

Crop nitrogen is an efficient index for estimating crop yield. Using hyperspectral information to monitor in cotton real time can help guide cultivation. In this study, we used drip-irrigation Xinjiang as the research object and employed various treatments explore correlation between vegetation indexes leaf concentration (LNC) canopy density (CND) of different growth periods interannual. We 30 ...

ژورنال: علوم زراعی ایران 2019
Kalantar Ahmadi, Ahmad, Shoushi Dezfouli, Ahmad Ali,

To evaluate the effects of drought stress by withholding of irrigation during reproductive stages and foliar application of micronutrients (Zn, Mn and B) on seed yiled and oil quality, an experiment was carried out as split plot arrangements in randomized complete block design with three replications at Safiabad Agricultural and Natural Resources Research and Education Center, Dezful, Iran, in ...

Journal: :Agronomy 2022

Potatoes are a high-value crop with shallow root system and high fertilizer requirements. The primary emphasis in potato production is minimizing nitrogen-leaching losses from the zone through fertigation. Therefore, field experiment was conducted for two consecutive years, 2018–2019 2019–2020 to assess effect of nitrogen irrigation amount frequency on tuber yield, water balance components prod...

Journal: :پژوهش های حبوبات ایران 0
فریده سادات حسینی احمد نظامی مهدی پارسا کمال حاج محمدنیا قالی باف

supplementary irrigation is a key factor in dryland production of lentil (lens culinaris medik.). in order to study the effects of supplementary irrigation on phenological and morphological characters of three lentil (lens culinaris medik.) cultivars, a trial carried out as split block based on randomized complete block design with three replications at research field of agricultural college, f...

Journal: :به زراعی کشاورزی 0
زهرا مهرابی زاده دانشجوی کارشناسی ارشد، گروه زراعت و اصلاح نباتات، دانشکده کشاورزی، دانشگاه صنعتی اصفهان، اصفهان پرویز احسان زاده دانشیار، گروه زراعت و اصلاح نباتات، دانشکده کشاورزی، دانشگاه صنعتی اصفهان، اصفهان

sesame could be an appropriate oilseed crop for water limited environments. this research was aimed at studying growth, leaf chlorophyll fluorescence, proline content, yield and yield components of sesame cultivars under different moisture regimes. a 4-replicate split plot rcbd field experiment was conducted at the lavark research farm, college of agriculture, isfahan university of technology, ...

جعفری, سیروس, بخشنده, عبدالمهدی, فتحی, قدرت‌اله, قرینه, محمد حسین , نمروری, معصومه ,

The aim of this experiment was that study the effect of drought stress and different chemical and organic fertilizers systems on wheat flag leaf chlorophyll. This experiment was conducted as split plot based on completely randomized block design (CRBD) with four replications during 2009-2010 at experimental fields of Ramin university. Irrigation treatments were achived in I1(irrigation droped ...

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