نتایج جستجو برای: 50 and 100 t ha

تعداد نتایج: 17061699  

2012
David R. Bryla Bernadine C. Strik M. Pilar Bañados Timothy L. Righetti

A study was done to determine the macroand micronutrient requirements of young northern highbush blueberry plants (Vaccinium corymbosum L. ‘Bluecrop’) during the first 2 years of establishment and to examine how these requirements were affected by the amount of nitrogen (N) fertilizer applied. The plants were spaced 1.2 · 3.0 m apart and fertilized with 0, 50, or 100 kg ha of N, 35 kg ha of pho...

2015
Andrew Lawson Craig Cogger Andy Bary Ann-Marie Fortuna Anil Shrestha

Cover crop benefits include nitrogen accumulation and retention, weed suppression, organic matter maintenance, and reduced erosion. Organic farmers need region-specific information on winter cover crop performance to effectively integrate cover crops into their crop rotations. Our research objective was to compare cover crop seeding mixtures, planting dates, and termination dates on performance...

Journal: :پژوهش های زراعی ایران 0
فرشاد ابراهیم‏پور خالد عیدی‏زاده عبدالمجید مهدوی دامغانی محمد رضوانی

in order to study the effects of integrated application of bio-fertilizer and chemical fertilizers on yield and yield components of corn, an experiment was conducted in 2008 in dezful city, (khoozestan province) in a factorial arrangement based on complete randomized block design with four replications. treatments were integrated application of biological and chemical fertilizers in four levels...

Journal: :Madras agricultural journal 2022

A field experiment was conducted for two years during 2019 - 21 at Field No.36 of Eastern block farm, Department Agronomy, Tamil Nadu Agricultural University, Coimbatore to identify the suitable plant spacing and nutrient levels getting higher fodder yield economics in maize pre-release culture TNFM 131-9. The laid out split plot design with three replications. treatments consisted four viz., 3...

Journal: :بوم شناسی کشاورزی 0
امیر علی صادقی کیومرث بخش کلارستاقی کمال حاج محمدنیا قالیباف

in order to investigate the effects of vermicompost and chemical fertilizers on growth characteristics, yield and yield components of marshmallow (altheaeofficinalis l.), a field experiment was conducted as factorial layout based on a randomized complete block design with three replications at faculty of agriculture, ferdowsi university of mashhad, iran, during growing season of 2012. experimen...

ژورنال: به زراعی کشاورزی 2010

به منظور بررسی اثرات جداگانه و ترکیبی کودهای فسفاته، باکتری های حل کننده فسفات و قارچ مایکوریزا بر کاهش خسارات ناشی از تنش خشکی در مرحله رشد رویشی ذرت دانه ای هیبرید سینگل کراس 704 آزمایشی در سال 1388 در مزرعه تحقیقاتی پردیس ابوریحان دانشگاه تهران به صورت کرت های خرد شده و در قالب طرح بلوک های کامل تصادفی با دو فاکتور به اجرا در آمد. فاکتورهای آزمایش شامل تنش خشکی به عنوان فاکتور اصلی (50، 100 ...

ژورنال: علوم آب و خاک 2003
مجیدافیونی, , محمدرحیم بهره مند, , محمدعلی حاج عباسی, , یحیی رضایی نژاد, ,

A field experiment was conducted to investigate the effects of sewage sludge and of time lapse after sludge application on soil physical properties. Four sewage sludge treatments (0, 25, 50, and 100 ton/ha) in a complete randomized block design with three replications were applied and mixed to a depth of 20 cm. Wheat was planted and soil physical properties were measured 23, 85, 148, and 221 da...

مجیدافیونی, , محمدرحیم بهره مند, , محمدعلی حاج عباسی, , یحیی رضایی نژاد, ,

A field experiment was conducted to investigate the effects of sewage sludge and of time lapse after sludge application on soil physical properties. Four sewage sludge treatments (0, 25, 50, and 100 ton/ha) in a complete randomized block design with three replications were applied and mixed to a depth of 20 cm. Wheat was planted and soil physical properties were measured 23, 85, 148, and 221 da...

Journal: :Philosophical transactions. Series A, Mathematical, physical, and engineering sciences 2012
Vera Bolis Claudia Busco Gianmario Martra Luca Bertinetti Yuriy Sakhno Piero Ugliengo Fabio Chiatti Marta Corno Norberto Roveri

The affinity towards water of a selection of well-defined, nanostructured hydroxyapatite (HA) samples was investigated by H(2)O vapour adsorption microcalorimetry and infrared (IR) spectroscopy. A large hydrophilicity of all investigated materials was confirmed. The surface features of hydrated HA were investigated on the as-synthesized samples pre-treated in mild conditions at T=303 K, whereas...

2016
Jiyeon Roh Ji-Youn Kim Young-Muk Choi Seong-Min Ha Kyoung-Nam Kim Kwang-Mahn Kim

The demand of bone graft materials has been increasing. Among various origins of bone graft materials, natural coral composed of up to 99% calcium carbonate was chosen and converted into hydroxyapatite (HA); silicon was then substituted into the HA. Then, the Si-HA was mixed with β-tricalcium phosphate (TCP) in the ratios 100:0 (S100T0), 70:30 (S70T30), 60:40 (S60T40), and 50:50 (S50T50). The m...

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