نتایج جستجو برای: weed number and weed fresh weight planting date has significant effect on potassium and harmful nitrogen root and sugar yield

تعداد نتایج: 18745063  

Journal: :چغندرقند 0
مصطفی حسین پور استادیار مرکز تحقیقات کشاورزی صفی آباد- دزفول علیرضا پاک‎نژاد مربی مرکز تحقیقات کشاورزی صفی آباد- دزفول احمد نادری استادیار مرکز تحقیقات کشاورزی و منابع طبیعی خوزستان رحیم اسلامی‎زاده استادیار مرکز تحقیقات کشاورزی صفی آباد ولی‎اله یوسف‎آبادی مربی مؤسسه تحقیقات چغندر قند حمید شریفی مربی مرکز تحقیقات کشاورزی صفی آباد

this study was conducted to determine the effect of variable nitrogen supply on yield parameters of two sugar beet varieties, as well as on biomass allocation to different parts of sugar beet plant at safi-abad agric. res. center during 2003-4 and 2004-5. five nitrogen rates (0, 60, 120, 180 and 240 kgha-1) and two monogerm sugar beet varieties (shirin and rasol) arranged as factorial in a rand...

Journal: :مدیریت آب و آبیاری 0
داود اکبری نودهی دانشگاه آزاد اسلامی، واحد قائم شهر، گروه آبیاری، قائم شهر، ایران

in order to evaluate the effect of different levels of drought stress and nitrogen fertilizer on growth of strawberry plants, present study was conducted in the mazandaran province in 2010. experiment was carried out as factorial based on randomized complete block design with three replications. drought stress treatments (30, 50 and 70% maximum allowable depletion of moistur (mad)) and nitrogen...

پایان نامه :دانشگاه آزاد اسلامی - دانشگاه آزاد اسلامی واحد گرمسار - دانشکده علوم انسانی 1391

the present study was conducted to investigate the effect of implicit focus on form through input flooding and the effect of noticing, explicit focus on form on linguistic accuracy. to fulfill the purpose of the study, 86 iranian pre-intermediate efl learners of one of the language institutes were chosen by means of administering ket as the homogeneity test. these learners were pretested throug...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه ارومیه - دانشکده ادبیات و علوم انسانی 1390

the present study was concerned with exploring the frequency and linguistic focus of corrective feedback types given by novice and experienced female teachers working with young learners and compared it with those of elementary classes for adults. moreover, it aimed at measuring learners’ acknowledgement of teachers’ corrective feedback in the form of uptake in relation to linguistic coverage o...

To evaluate the effect of herbicide band application and cultivator on weed control, yield and yield components of potato, an experiment was conducted using factorial arrangement based on randomized complete block design (RCBD) with four replications at Research Field of Ferdowsi University of Mashhad, Mashhad, Iran during 2015. Experimental factors included cultivator at two levels (with and w...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه پیام نور - دانشگاه پیام نور استان تهران - دانشکده علوم انسانی 1391

abstract this study set out to compare the effect of modality of presentation (subtitled vs. auditory) in the comprehension of verbal content of documentary films among iranian efl students. to this end, (30 male 30 female) students were chosen from two schools. after their homogeneity was established, the students attended the listening sessions to watch five documentary films over t...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه کاشان 1388

textbooks play a crucial role in language learning classrooms. the problem is that among the great quantity of available textbooks on the market which one is appropriate for a specific classroom and a group of learners. in order to evaluate elt textbooks, theorists and writers have offered different kinds of evaluative frameworks based on a number of principles and criteria. this study evaluate...

پایان نامه :دانشگاه آزاد اسلامی - دانشگاه آزاد اسلامی واحد گرمسار - پژوهشکده علوم انسانی و اجتماعی 1391

abstract the present study was conducted to investigate the effect of using model essays on the development of writing proficiency of iranian pre-intermediate efl learners. to fulfill the purpose of the study, 55 pre- intermediate learners of parsa language institute were chosen by means of administering proficiency test. based on the results of the pretest, two matched groups, one as the expe...

Journal: :حفاظت گیاهان 0
ملیحه قنبری مطلق مهدی راستگو مجید پوریوسف جلال صبا

abstract to evaluate the effect of sowing date and weed interference on growth indices of red bean cultivars with different growth habit, a field experiment was carried out during the spring 2009 at university of zanjan as a factorial split plot on the basis of randomized complete block design, with three replications. main plots included factorial of three red bean cultivars (derakhshan (stand...

Journal: :چغندرقند 0
حمید شریفی مرکز تحقیقات کشاورزی صفی‎آباد مصطفی حسین پور مرکز تحقیقات کشاورزی صفی‎آباد عبدالامیر راهنما مرکز تحقیقات کشاورزی صفی‎آباد

this experiment was conducted for determining the effect of irrigation termination before harvesting and late application of nitrogen on sugar beet yield, quality and root rot during 1993-95 at safiabad agricultural research center. different irrigation termination and late nitrogen application treatments had a significant effect on root yield. terminating irrigation 1 and 3 weeks before harves...

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