نتایج جستجو برای: 3 nitrogen content

تعداد نتایج: 2246441  

Journal: :پژوهش های حبوبات ایران 0
علیرضا محسنی محمدجانلو احمد توبه عبدالقیوم قلی پوری حسین مصطفایی

in order to study the effects of potassium application on uptake and allocation of nitrogen and seed protein on two lentil cultivars in rain-fed condition a factorial experiment based on randomized complete block design with three replications was conducted at ardabil research center for agriculture and natural resources, in 2008. three potassium levels (0, 30 and 60 kg.ha-1), three nitrogen le...

2012
Vincent Maire Pierre Martre Jens Kattge François Gastal Gerd Esser Sébastien Fontaine Jean-François Soussana

Photosynthetic capacity is one of the most sensitive parameters in vegetation models and its relationship to leaf nitrogen content links the carbon and nitrogen cycles. Process understanding for reliably predicting photosynthetic capacity is still missing. To advance this understanding we have tested across C(3) plant species the coordination hypothesis, which assumes nitrogen allocation to pho...

2017
Yong He Shupei Xiao Pengcheng Nie Tao Dong Fangfang Qu Lei Lin

Nitrogen is one of the important indexes to evaluate the physiological and biochemical properties of soil. The level of soil nitrogen content influences the nutrient levels of crops directly. The near infrared sensor can be used to detect the soil nitrogen content rapidly, nondestructively, and conveniently. In order to investigate the effect of the different soil water content on soil nitrogen...

Journal: :Plant physiology 1992
A Makino H Sakashita J Hidema T Mae K Ojima B Osmond

The amounts of ribulose-1,5-bisphosphate carboxylase/oxygenase (Rubisco), total chlorophyll (Chl), and total leaf nitrogen were measured in fully expanded, young leaves of wheat (Triticum aestivum L.), rice (Oryza sativa L.), spinach (Spinacia oleracea L.), bean (Phaseolus vulgaris L.), and pea (Pisum sativum L.). In addition, the activities of whole-chain electron transport and carbonic anhydr...

Journal: :حفاظت گیاهان 0
مسعود آزاد ابراهیم ایزدی دربندی محمدحسن راشد محصل مهدی نصیری محلاتی

in order to study the effect of soil nitrogen content and water hardness on glyphosate efficacy on common lambsquarter (chenopodium album l.) and redroot pigweed (amaranthus retroflexus l.) control, an experiment was carried out as a completely randomized design in a factorial arrangement with three replications. experimental treatments were included soil nitrogen content (18, 50, 90, 200 and 3...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه رازی - دانشکده علوم 1387

boron nitride semiconducting zigzag swcnt, $b_{cb}$$n_{cn}$$c_{1-cb-cn}$, as a potential candidate for making nanoelectronic devices was examined. in contrast to the previous dft calculations, wherein just one boron and nitrogen doping configuration have been considered, here for the average over all possible configurations, density of states (dos) was calculated in terms of boron and nitrogen ...

Salinity stress is one of the major abiotic stresses which injures plants by limited water absorption and nutrient imbalance and limits crop growth. In order to study the effect of nitrogen fertilizer on physiological traits of quinoa at high salt concentrations, a greenhouse experiment was conducted in a factorial arrangement based on a randomized complete block with three replications in 2019...

Journal: :چغندرقند 0
حمید شریفی مرکز تحقیقات کشاورزی صفی‎آباد مصطفی حسین پور مرکز تحقیقات کشاورزی صفی‎آباد عبدالامیر راهنما مرکز تحقیقات کشاورزی صفی‎آباد

this experiment was conducted for determining the effect of irrigation termination before harvesting and late application of nitrogen on sugar beet yield, quality and root rot during 1993-95 at safiabad agricultural research center. different irrigation termination and late nitrogen application treatments had a significant effect on root yield. terminating irrigation 1 and 3 weeks before harves...

Journal: :Journal of agricultural and food chemistry 2008
Bárbara Ribeiro Paula B Andrade Paula Baptista Lillian Barros Isabel C F R Ferreira Rosa M Seabra Patrícia Valentão

The aim of this work was to find the most useful inorganic nitrogen source to enable Leucopaxillus giganteus to become a more nutritious mushroom, regarding organic acid and phenolic composition and total alkaloids content. For these, the influence of NH 4NO 3,NaNO 2, KNO 3,, and (NH 4) 2HPO 4 on the organic acid production was determined by HPLC-UV and total alkaloid content was assessed by a ...

Journal: :علوم گیاهان زراعی ایران 0
محمد ربیعی پژوهشگر مؤسسه تحقیقات برنج کشور پری طوسی کهل دانشجوی سابق کارشناسی ارشد دانشکده کشاورزی دانشگاه گیلان

in order to evaluate the effects of different levels of potassium and nitrogen on nitrogen use efficiency (nue) and yield of rapeseed (hyola 401), a field experiment was conducted at rice research institute of iran (rasht) in a factorial experiment based on a complete randomized block design with 3 replications for two years (2008-2010). the first factor was pure potassium fertilizer in three l...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید