نتایج جستجو برای: weeding and their planting design on weed population dynamics

تعداد نتایج: 18759686  

2014
Anja Schmithals Norbert Kühn Anil Shrestha

North American prairie vegetation has been a role model for designing highly attractive plantings for German urban green spaces for the past decade. In combination with gravel mulch top layers on planting sites and non-selective maintenance techniques like mowing or burning, prairie plantings are considered to be cost-effective and low-maintenance. This study was undertaken to assess the impact...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه پیام نور - دانشگاه پیام نور استان تهران - دانشکده زیست شناسی 1388

abstract chickpea is weak in competition of weeds that damages to it at between 40 t0 60 percent. kermanshah province is one of the most important region for chickpea fields in iran. for these reosons, weed management is necessary in this crop. in order to evaluate of herbicides and stubble control on broad leave weeds control in chickpea. experiment was conducted in agricultural research stat...

Journal: :علوم گیاهان زراعی ایران 0
یوسف غلام پور شمامی دانشجوی کارشناسی ارشد پردیس کشاورزی و منابع طبیعی دانشگاه تهران ناصر مجنون حسینی استاد پردیس کشاورزی و منابع طبیعی دانشگاه تهران حسن علیزاده استاد، پردیس کشاورزی و منابع طبیعی دانشگاه تهران

to determine the optimum weed management method and plant population density on chickpea yield, a split plot experiment based on rcbd with four replications was carried out at the university of tehran research farm (located in karaj) during 2010-2011. the main factor consisted of nine treatments including: 1. trifluralin pre-plant, 2. pendimethalin pre-plant, 3. complete weeding, 4. imazethapyr...

Journal: :حفاظت گیاهان 0
شهرام نظری فائزه زعفریان اسفندیار فرهمندفر

in order to evaluate the competitive ability of legume cover crops on interference of weeds in corn, an experiment was carried out in sari agricultural sciences and natural resources university during 2011 growing season. this research was carried out based on complete block design with three replications. treatments consisted of three cover crops including: soybean (glycine max l.), fenugreek ...

Journal: :تولید گیاهان زراعی 0

in order to evaluate the effect of row space and weed management on weed population, chickpea yield and yield components, a factorial experiment based on rcbd with three replications was conducted at field research of agriculture college of lorestan university in cropping season of 2006-2007. in this research experimental factors were chickpea row spaces with four levels (15, 20, 30 and 40 cm w...

Journal: :تولید گیاهان زراعی 0
هدی آبادیان دانشجوی دانشجوی دکترای دانشگاه آزاد اسلامی واحد تبریز همت اله پیردشتی معاون پژوهشکده مهرداد یارنیا عضو هیئت علمی دانشگاه آزاد اسلامی واحد تبریز رحمت عباسی استادیار گروه زراعت و اصلاح نباتات، دانشگاه علوم کشاورزی و منابع طبیعی ساری فرهاد فرح وش عضو هیئت علمی دانشگاه آزاد اسلامی واحد تبریز

to investigate the effects of intercropping of basil (ocimum basiilicum l.) and cowpea (vigna unguiculata l.), different levels of nitrogen fertilizers on basil and cowpea yield, an experiment was carried out during 2010 and 2011. experimental factor were included weed treatment (weeding and unweeding), three levels of nitrogen fertilizer (0, 50 and 100 kg ha-1), different planting ratio, (p1: ...

Journal: :بوم شناسی کشاورزی 0
مهران صفرخانلو اسکندر زند محمدعلی باغستانی علیرضا ولدآبادی علیرضا باقری

in order to evaluate of using planting pattern for reducing herbicides dose in corn (single cross 704), a field experiment was conducted in 2007 at research field of collage of agriculture, islamic azad university branch of takestan. the experimental design was randomized complete block with 18 treatments and using factorial design with 4 replications. treatments consisted of corn planting patt...

Journal: :علوم گیاهان زراعی ایران 0
پرستو مرادی دانشجوی دکتری، گروه زراعت و اصلاح نبات دانشکدۀ کشاورزی دانشگاه گیلان جعفر اصغری استاد، گروه زراعت و اصلاح نبات دانشکدۀ کشاورزی دانشگاه گیلان غلامرضا محسن آبادی استادیار، گروه زراعت و اصلاح نبات دانشکدۀ کشاورزی دانشگاه گیلان حبیب الله سمیع زاده دانشیار گروه زراعت و اصلاح نبات دانشکدۀ کشاورزی دانشگاه گیلان

to study the response of pinto-bean yield and yield components in intercropping with maize and naked-pumpkin under weed competition, two similar experiments were conducted in rasht and roudsar separately each in a randomized complete block design with 3 replications on factorial arrangements experiment in 2013. the treatments of first factor consisted of  pinto bean (100 and 75%) sole cropping,...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس - دانشکده فنی 1391

the study of air infiltration into the buildings is important from several perspectives that may be noted to energy and design of hvac systems, indoor air quality and thermal comfort and design of smoke control systems. given the importance of this issue, an experimental and numerical study of air infiltration through conventional doors and windows has been explored in iran. to this end, at fir...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شاهد - دانشکده هنر 1391

now-a-days graphic design plays a major role in influencing culture, society, business, and customers, in such a way that one could look upon every individual as a potential customer. graphic designers seek to identify customers needs and find an intelligent solution for them. correct identification and understanding of those needs is the first step towards achieving ones goals. marketing knowh...

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