نتایج جستجو برای: nutrient application potential response napr

تعداد نتایج: 2636470  

2010
Thomas P. Neufeld Andrew M. Arsham

3146 Cell Cycle Volume 9 Issue 16 Adaptation of metabolic activity to nutrient availability is among the most ancestral of cellular behaviors. Resource-intensive processes such as growth and protein synthesis are particularly tightly coupled to nutrient levels, ensuring that cells devote resources to these functions only under appropriate conditions. The target of rapamycin (TOR) protein kinase...

Journal: :journal of agricultural science and technology 2014
d. tomic v. stevovic d. djurovic r. stanisavljevic

a field experiment involving red clover varieties k-39, k-17, una and viola was established on an acidic (phh2o 4.8) soil to evaluate the effects of foliar application of cobalt (a beneficial nutrient for efficient nitrogen fixation) on seed yield, and on seed yield components. the foliar spray of the crop was carried out using cobalt nitrate [co(no3)2] with the treatments: one application at t...

Journal: :Food and nutrition bulletin 2007
Hester H Vorster Suzanne P Murphy Lindsay H Allen Janet C King

The process of applying nutrient intake values (NIVs) for dietary assessment, planning, and implementing programs is discussed in this paper. In addition to assessing, monitoring, and evaluating nutritional situations, applications include planning food policies, strategies, and programs for promotion of optimal nutrition and preventing and treating malnutrition (both over- and undernutrition)....

Journal: :علوم باغبانی ایران 0
عرفان سپهوند دانشجوی سابق کارشناسی ارشد و دانشیار، دانشکدۀ کشاورزی دانشگاه گیلان محمدرضا فتاحی مقدم دانشیار، استاد و استادیار، پردیس کشاورزی و منابع طبیعی دانشگاه تهران، کرج محمود قاسم نژاد دانشجوی سابق کارشناسی ارشد و دانشیار، دانشکدۀ کشاورزی دانشگاه گیلان علیرضا طلایی دانشیار، استاد و استادیار، پردیس کشاورزی و منابع طبیعی دانشگاه تهران، کرج محمد علی عسکری سرچشمه دانشیار، استاد و استادیار، پردیس کشاورزی و منابع طبیعی دانشگاه تهران، کرج

training systems and calcium foliar application can improve apple fruits pigmentation by changing mineral compositions. in this study, effect of foliar application of calcium chloride with different concentrations (0, 0.75, 1.5 and 3 g l-1) over 2, 4 and 6 weeks before harvest time on fruit mineral nutrient composition and colour values of apple cvs. gala and delbarestival which trained in thre...

2014
Juha M Alatalo Chelsea J Little

Cushion plants are important components of alpine and Arctic plant communities around the world. They fulfill important roles as facilitators, nurse plants and foundation species across trophic levels for vascular plants, arthropods and soil microorganisms, the importance of these functions increasing with the relative severity of the environment. Here we report results from one of the few expe...

2007
Richard O. Carey George Vellidis Richard Lowrance Catherine M. Pringle

We examine the potential for nutrient limitation of algal periphyton biomass in blackwater streams draining the Georgia coastal plain. Previous studies have investigated nutrient limitation of planktonic algae in large blackwater rivers, but virtually no scientific information exists regarding how algal periphyton respond to nutrients under different light conditions in smaller, low-flow stream...

2015
Xinpeng Xu Xiaoyan Liu Ping He Adrian M. Johnston Shicheng Zhao Shaojun Qiu Wei Zhou Wenju Liang

Great achievements have been attained in agricultural production of China, while there are still many difficulties and challenges ahead that call for put more efforts to overcome to guarantee food security and protect environment simultaneously. Analyzing yield gap and nutrient use efficiency will help develop and inform agricultural policies and strategies to increase grain yield. On-farm data...

Journal: :Agronomy 2021

Tomato is an important economic crop that widely consumed worldwide. production mainly limited by the use of nitrogen fertilizer, sunlight, soil and water conditions. Biochar one amendments, it recognized as a promising practice for improving in agriculture. The effect biochar on photosynthetic traits tomato yield under reduced fertilizer application still not well understood. objective this re...

Journal: :Public health nutrition 2002
Ross L Prentice Elizabeth Sugar C Y Wang Marian Neuhouser Ruth Patterson

OBJECTIVE To provide an account of the state of diet and chronic disease research designs and methods; to discuss the role and potential of aggregate and analytical observational studies and randomised controlled intervention trials; and to propose strategies for strengthening each type of study, with particular emphasis on the use of nutrient biomarkers in cohort study settings. DESIGN Obser...

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