نتایج جستجو برای: 100 percent chemical fertilizers b1

تعداد نتایج: 883750  

ژورنال: علوم آب و خاک 2013
زهرا احمد آبادی, , سپیده رحیمی آلاشتی, , محمد علی بهمنیار , ,

In order to investigate the effects of municipal solid waste enriched with mineral fertilizers on some soil physical properties and lead (Pb) and chromium (Cr) concentration in plant organs of spinach, a field experiment was carried out in a factorial arrangement based on the randomized complete block design with three replications in 2008. The main plot included four levels of fertilizer, cont...

Journal: :به زراعی کشاورزی 0
مهدی رمضانی دانشجوی دکتری زراعت، دانشکدة کشاورزی، دانشگاه گیلان، رشت – ایران سید محمدرضا احتشامی استادیار گروه زراعت، دانشکدة کشاورزی، دانشگاه گیلان، رشت - ایران محسن شریفی دانشیار، گروه علوم گیاهی، دانشکدة علوم زیستی، دانشگاه تربیت مدرس، تهران - ایران محمدرضا چائی چی استاد گروه زراعت، دانشکدة کشاورزی، دانشگاه تهران، کرج - ایران

in order to investigate the effect of different levels of biofertilizer inoculation and phosphorus chemical fertilizer on mineral elements absorption in forage corn sc. 540 under humidity regimes, an experiment was conducted as line source based on a randomized completele block design with three replications during two growing seasons of 2012 and 2013. the implementation of line source was appl...

In order to investigate the influence of bio- and chemical fertilizers on growth parameters and essential oil of fennel (Foeniculum vulgare Miller.), an experiment based on randomized complete blocks design with five treatments and three replications was carried out. Arbuscular mycorrhizal fungi (strain Sebacina vermifera) and phosphate dissolving bacteria (genera Peseudomonas) were applied as ...

2011
Shengsen Wang Ashok K. Alva Yuncong Li Min Zhang

Controlled release fertilizers (CRF) are produced with different rates and durations of nutrient release to cater to different crops with wide ranges of nutrient requirements. A rapid technique is needed to verify the label specifications of nutrient release rate and duration. Polymer-coated urea (PCU) (43% nitrogen [N]) and polymer-coated N, phosphorus (P), potassium (K) (PC_NPK; 14-14-14) fer...

Journal: :علوم گیاهان زراعی ایران 0
محمدعلی ابوطالبیان استادیار، دانشکدة کشاورزی دانشگاه بوعلی سینا محمد اللهی دانشجوی کارشناسی ارشد دانشکدة کشاورزی دانشگاه بوعلی سینا

in order to study the effect of on-farm seed priming and two bio-fertilizers on emergence and yield characteristics of chickpea, a factorial experiment was conducted in a randomized complete block design in hamedan with three replications in 2013. the factors consisted of phosphate fertilizer (0, 50 and 100 percent of recommended) bio-fertilizer (mycorrhizae, barvar2, both of them and no-applic...

Increasing attention is being paid to use of organic fertilizers such as manure and vermicompost which can increased yield and protect the environment. Replacing chemical fertilizers with manures has the benefit of low production cost and imparts beneficial effects on soil. Then an experiment was conducted during 2013 to measure effects of organic fertilizers on essential oil of dill (Anethum g...

Journal: :آب و خاک 0
علیرضا یدوی زینب یوسف پور

introduction: soil fertility management is a key factor in achieving sustainable agriculture. use of organic fertilizers is one of the methods that without environmental harmful effects with improvement of chemical and biological conditions increases soil fertility. nitroxin contains a collection of the best strains of nitrogen fixation bacteria of the genus azospirillum and azotobacter. these ...

Journal: :The Journal of the Society of Chemical Industry, Japan 1959

Drought stress is a major environmental stress that restricts plant growth and production in the majority of agricultural fields of the world. The application of different fertilizers, especially biofertilizers and organic fertilizers, might play an important role in the production of medicinal plants in order to improve their resistance to deficit water stress. In order to evaluate the effects...

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...

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