نتایج جستجو برای: yield reduction

تعداد نتایج: 674328  

2000
Karsten Schmidt

We present three methods for the integration of symmetries into reachability analysis Two of them lead to perfect reduction but their runtime depends on the symmetry structure The third one works always fast but does not always yield perfect reduction

Journal: :Journal of clinical pathology 1979
H A Lilly E J Lowbury M D Wilkins

Antiseptic preparations used repeatedly to disinfect the skin caused a reduction in yield of resident flora to a low equilibrium level beyond which further reduction did not occur. This equilibrium varied with the antiseptic preparation used. In a comparison of three preparations, the lowest equilibrium level was obtained with 95% ethyl alcohol. The further reduction in yield of skin bacteria o...

عباس ستوده نیا, عبد المجید لیاقت مسعود سلطانی

Supplementary irrigation is one of the most effective field management practices to improve water productivity and crop yield in rainfed conditions. Time of supplementary irrigation is another important parameter affecting the enhancement of yield. In order to study the effect of supplementary irrigation time as well as planting date, two factors, namely: 1) supplementary irrigation (No irrigat...

امام, یحیی , ربانی, جواد,

Drought stress is the most important limiting factor in crop plants including maize (Zea mays L.), which is the third important world crop after wheat and rice. Water deficiency at different growth stages affects maize yield differently. To examine the response of four maize hybrids to drought stress at different growth stages, a field experiment was carried out as a split plot based on complet...

Journal: :پژوهش های علوم دامی ایران 0
مهدی خلیل ارجمندی اسدا... تیموری یانسری

. eight holstein cows in early lactating stage were used in a 4×4 change-over design within 4 periods of 21-d to determine the effects of alfalfa hay particle size and soybean oil supplementation on intake, digestibility, ruminal and blood metabolites, chewing activity, milk yield and compositions. four total mixed rations containing 20, 20 and 60% corn silage, alfalfa hay and concentrate respe...

2000
Karsten Wolf

We present three methods for the integration of symmetries into reachability analysis. Two of them lead to perfect reduction but their runtime depends on the symmetry structure. The third one works always fast but does not always yield perfect reduction.

Journal: :علوم گیاهان زراعی ایران 0
فاطمه ملک ملکی پردیس کشاورزی و منابع طبیعی دانشگاه تهران ناصر مجنون حسینی پردیس کشاورزی و منابع طبیعی دانشگاه تهران حسن علیزاده پردیس کشاورزی و منابع طبیعی دانشگاه تهران

to study the effect of plant density on seed yield and yield components of two lentil cultivars a field experiment using factorial design based on a complete block design was conducted with three replications at research farm of college of agriculture and natural resources, university of tehran (karaj) in 2008. treatments were lentil varieties (ziba, mardom), and plant densities (80, 160, 240, ...

2010
S. A. Siadat S. S. Hemayati

In order to elucidate the effect of sowing date on oilseed rape (Brassica napus L.) yield and yield components, three varieties including Tower, Rafal and Global were sown from November 7 to December 22, 1998-99 in four dates with 15day intervals in Dezful region. A split-plot design based on randomized complete blocks with four replications was used in which levels of sowing dates and cultivar...

Journal: :به زراعی کشاورزی 0
محمود قربانزاده نقاب استادیار، گروه تکنولو‍ژی تولیدات گیاهی، دانشکده کشاورزی شیروان، دانشگاه فردوسی مشهد، ایران حمیدرضا بابایی استادیار بخش تحقیقات دانه های روغنی، مؤسسه تحقیقات اصلاح و تهیه نهال و بذر، کرج ـ ایران قربانعلی رسام استادیار، گروه تکنولو‍ژی تولیدات گیاهی، دانشکده کشاورزی شیروان، دانشگاه فردوسی مشهد علیرضا دادخواه دانشیار، گروه تکنولو‍ژی تولیدات گیاهی، دانشکده کشاورزی شیروان، دانشگاه فردوسی مشهد اصغر خوشنود یزدی استادیار، گروه تکنولو‍ژی تولیدات گیاهی، دانشکدة کشاورزی شیروان، دانشگاه فردوسی مشهد

to study the response of yield,yield components,protein and oil content of soybean cultivars to delay in planting in shirvan region, an experiment was conducted at research farm of the faculty of agriculture, shirvan in 2010. in this study, nine soybean cultivars (habit, hack, black hack, cencutry, cloumbos, clark, sahar, zane and willams) were evaluated at different sowing dates (20 may, 4 jun...

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 In order to investigate the effect of salicylic acid and humic acid to mitigate the impact of drought tension during pollination of forage maize, the present experiment was conducted as split plots based on randomized complete blocks design with three replications at Isfahan University of Technology. Drought tension levels included: without tension (control), mild tension (75 percent crop capa...

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