نتایج جستجو برای: 1 and energy kg mj

تعداد نتایج: 17340224  

Journal: :Environmental science & technology 2008
John L Gaunt Johannes Lehmann

The implications for greenhouse gas emissions of optimizing a slow pyrolysis-based bioenergy system for biochar and energy production rather than solely for energy production were assessed. Scenarios for feedstock production were examined using a life-cycle approach. We considered both purpose grown bioenergy crops (BEC) and the use of crop wastes (CW) as feedstocks. The BEC scenarios involved ...

Journal: :مهندسی بیوسیستم ایران 0
نرگس بنائیان دانشجوی دکتری، دانشکده مهندسی و فناوری ، دانشگاه تهران محمود امید استاد، دانشکده مهندسی و فناوری پردیس کشاورزی و منابع طبیعی کرج حجت احمدی دانشیار، دانشکده مهندسی و فناوری، پردیس کشاورزی و منابع طبیعی کرج

savojbolagh is the main region of hydroponic greenhouse agriculture in iran and is of the capacity to produce the highest in greenhouse production strawberry. the aims followed in this study were to calculate the energy use pattern and determine the relationship between energy input in greenhouse strawberry production and its yield through a linear programming model as based on data envelopment...

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

nanotechnology is a general term which is related with field of all advanced science term that generally predicates with all modern technologies which consider nanoscales. improvement in the quality of products by adding some nanoparticles and study of their behavior in the presence of these nanoparticles have been obtained in many researches. on the other hand numerous demands for sowing ...

Journal: :بوم شناسی کشاورزی 0
امین نیکخواه باقر عمادی فرشاد شعبانیان هانی حمزه کلکناری

sustainable development of the production in every region requires consideration of energy flow in the production system, moreover, investigating the production system inputs from environmental management point of view is of high importance. in this study energy use and greenhouse gas emissions is investigated. data were collected through interviews with 75 tea farmers and comparing the results...

Journal: :Ukrainian journal of veterinary and agricultural sciences 2021

The aim of this work was to study bioenergetic and ethological indicators in crossbred first-calf heifers compared purebred heifers. research conducted on the Ukrainian Black-Pied dairy breed first-generation crossbreeds obtained as a result crossing with Brown Swiss breed, well as, Red-Pied Montbéliarde breed. Black-and prevailed over crossbreed indicator milk yield for 305 days lactation by 1...

Journal: :international journal of agricultural management and development 2015
mehdi khojastehpour amin nikkhah davood hashemabadi

in this research, the energy flow and production energy indices of canola cultivation in trakya province of turkey, golestan and mazandaran provinces of iran were compared. diesel fuel and chemical fertilizer inputs were the highest consumer of energy in the production of canola in these three regions. the results indicated that despite the higher energy use of machinery in trakya province of t...

Journal: :ecopersia 2014
ali daneshi abbas esmaili sari mohammad daneshi henrikke baumann

the objectives for this study were first to understand and estimate energy consumption in each stage of production and processing of milk using regional data and second, suggesting improvement opportunities. a cradle to gate assessment of market milk was performed by separating the system into three stages: agronomy, animal farm and processing plant. data were collected from multiple sources e....

2014
Olajide S Annafi Solomon Umukoro Anthony T Eduviere

Methyl jasmonate (MJ) is one of the most well-studied plant stress hormones belonging to the jasmonate family. Previous studies have shown that MJ potentiated pentobarbitone sleeping time and enhanced GABA-mediated inhibitory neurotransmission, suggesting potential benefits in disorders associated with hyperactivity of the brain. This study was carried out to evaluate whether MJ has anticonvuls...

Journal: :Journal of animal science 2013
T M Boland C Quinlan K M Pierce M B Lynch D A Kenny A K Kelly P J Purcell

The objective of this study was to determine the effect of pregrazing pasture herbage mass (HM) on CH4 emissions, ruminal fermentation, and ADG of grazing beef heifers at 2 stages of the grazing season. Thirty Limousin cross heifers were allocated to 1 of 2 target pregrazing HM treatments [a low HM (LHM) or high HM (HHM) treatment] for 126 d in a randomized block design experiment. Pasture herb...

Journal: :Agronomy 2022

Fertilization is an effective agronomic management technique for increasing crop production. However, the overuse of chemical fertilizer stimulates energy consumption and greenhouse gas (GHG) emissions, which are antagonistic to sustainable wheat In this study, we estimated GHG performances different fertilization regimes based on a 32−year experiment. long−term experiment, there five treatment...

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