نتایج جستجو برای: nitrogen and phosphorous

تعداد نتایج: 16845547  

Ali Hajibeglo Anvar Sour Esmaeil Alizadeh Hossein Azarnivand

The effects of Range Management Plans (RMP) on soil and vegetationcharacteristics were studied in Eshtehard rangelands at Alborz province. The parameters ofyield, canopy cover, range condition and trend, bulk density, Organic Matter (OM%),Nitrogen (N), Phosphorous (P) and Potassium (K) were estimated on soil samples in sitesof Ghenzel Cheshmeh as RMP and sanctum of Rahmanyeh village. The data w...

Journal: :The American journal of psychiatry 1995
R F Deicken G Fein M W Weiner

OBJECTIVE Abnormalities in frontal lobe phosphorous metabolism in patients with bipolar disorder have been reported, but many of the patients studied were receiving lithium. In this study, medication-free bipolar patients were examined to determine abnormalities in frontal lobe high-energy phosphorous metabolism. METHOD In vivo phosphorous-31 magnetic resonance spectroscopic imaging was perfo...

Journal: :Grasas Y Aceites 2022

The total phenols in virgin olive oil are highly dependent on cultivar, but also ripening stage and other agronomic factors. focus of most studies factors has been irrigation, while fertilization received less attention. Most the works find that nitrogen over-fertilization leads to a decrease phenol contents (VOO) extra (EVOO), under rain-fed or irrigation management. Ortho-diphenols with high ...

Journal: :علوم دامی ایران 0
محمود حقیقیان رودسری محمد روستایی علیمهر سید مقداد طاهری تاری سید عبدالحسین ابولقاسمی سید علی اصغر سفیدگر

to study the possible use of phytase and yeast (saccharomyces cervisiae) in corn-soy bean meal base diet with different levels of available phosphorous in arbor acers broiler chicks, an experiment was conducted with 264 day old chicks of an average weight of 44.6 grams each. a completely randomized design of 6 treatments and 4 replications (11 chicks per replicate) for periods of starter, growe...

H.L. Zhang, L.Y. Wang, Q.X. Fan, X. Ouyang, X.L. Yao, Y.L. Zhang, Y.R. Mao, Z.B. Zhao, Z.H. Zhang,

Four feeding levels (40%, 60%, 80% and 100% of satiation) were designed as the different treatment groups to assess its effects on water quality and plankton community structure in the yellow catfish rearing enclosure ecosystem. The results showed that the weight gain and specific growth rate decreased significantly as the feeding level decreased. The soluble nutrients (except for NO2-N) concen...

2009
T. K. V. Vu G. S. Sommer

Livestock production in Vietnam is, as in most Asian countries, increasing rapidly and changing into specialized highly intensified operations. The volume of animal excreta generated exceeds the capacity of the operation land base and cannot be utilized efficiently. As a consequence, there is a loss of plant nutrients from livestock farms that causes environmental pollution. This study carried ...

Journal: :Molecular Physics 2021

Ab initio MP2/aug’-cc-pVTZ calculations have been performed to determine selected stretching frequencies and chemical shieldings for ternary complexes N-base:PH2F:BeX2 the corresponding binary complexes, with NH3, H2C=NH, HCN as nitrogen bases H, F, Cl substituents X. Be-F P-F depend on distances, respectively, while P F N-P respectively. The graph of versus distance bears a remarkable resembla...

2010
A. E. Ghaly F. N. Alkoaik

Problem statement: MSW has traditionally been dealt with thorough the practice of land filling and incineration. However, deleterious environmental impacts have promoted municipalities in Canada to recycle non-putrescible wastes and compost the putrescible ones. This study aimed at evaluating the effect of MSW compost on the growth and production of three vegetable crops (potatoes, corn and squ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه فردوسی مشهد - دانشکده کشاورزی 1388

چکیده به منظور بررسی اثر تنوع گیاهی و نوع منبع تغذیه ای بر تنوع و تراکم علفهای هرز و حشرات، کارایی مصرف نهاده ها ( نور، آب، عناصر غذایی) و عملکرد و خصوصیات کیفی چند گونه زراعی، آزمایشی به صورت کرتهای خردشده بر پایه طرح بلوکهای کامل تصادفی با سه تکرار در دو سال زراعی 1385-1384 و 1386-1385 در مزرعه تحقیقاتی دانشکده کشاورزی دانشگاه فردوسی مشهد به اجرا درآمد. تیمارهای مورد بررسی دو منبع کود دامی و...

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