نتایج جستجو برای: n and ca

تعداد نتایج: 16954582  

Journal: :علوم باغبانی ایران 0
سیده معصومه حیدری برکادهی دانشجوی سابق کارشناسی ارشد، دانشکده کشاورزی، دانشگاه گیلان محمود قاسم نژاد عضو هیات علمی دانشگاه یونس ابراهیمی پژوهشگر، مؤسسه تحقیقات مرکبات کشور، رامسر

summer pruning and calcium spray could improve kiwifruits quality. in this study, effect of summer pruning in two times, 2 and 15 days after petal fall alone or in combination with %1 calcium chloride spray on fruit quality and mineral elements contents of ‘hayward’ kiwifruit was investigated. calcium sprayed four times 90 days after petal fall with 15 days intervals. the results showed that su...

Journal: :iran agricultural research 2008
h. kheyrodin h. antoun

the objective of this work was to study the effects of tillage and liquid manure applications on some physical and chemical properties as well as on the carbon and nitrogen mineralization potential of a meadow soil. our results indicated that tillage and manure applications had no effect on the concentration of cu, mn, total n and organic c in 0-15 cm layer of soil after 15 years of treatment. ...

پایان نامه :دانشگاه آزاد اسلامی واحد کرمانشاه - دانشکده فنی 1393

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Journal: :Agronomy 2022

This study aimed to evaluate the concentrations of main macroelements in leaves and fruit grown following organic conventional practices, relate them physico-chemical parameters during commercial harvests. Three samplings were carried out maturation. Nitrogen (N), phosphorus (P), potassium (K), calcium (Ca), magnesium (Mg) determined two flesh areas: basal apical. Weight, color, firmness, solub...

Clustering is a widespread data analysis and data mining technique in many fields of study such as engineering, medicine, biology and the like. The aim of clustering is to collect data points. In this paper, a Cultural Algorithm (CA) is presented to optimize partition with N objects into K clusters. The CA is one of the effective methods for searching into the problem space in order to find a n...

Journal: :Journal of Radioanalytical and Nuclear Chemistry 2022

Abstract Emission of prompt gamma rays following (n,n’), (n,p) and (n,α) reactions induced by irradiation a calcium carbonate (CaCO 3 ) sample with beam fission neutrons was investigated modified version the FaNGaS (Fast Neutron-induced Gamma-ray Spectrometry) instrument operated at Heinz Maier-Leibnitz Zentrum (MLZ) in Garching. The neutron spectrum has an average energy 2.30 MeV position fast...

ژورنال: :مجله پژوهشهای گیاهی 2014
سیدابراهیم صادقی جورج ملیکا گراهام نیکلاس استون مجید توکلی حسن بریمانی

فون زنبورهای گالزای ایران که طی سال های 1380-1386 از روی 6 گونه بلوط در جنگل های بلوط کشور جمع آوری شده است در این مقاله مرور شده است. در این بررسی ها 78 گونه زنبور گالزا جمع آوری و شناسایی گردیده که 18 گونه از آنها برای دنیای علم توصیف گردیده و 20 گونه نیز برای اولین بار از کشور گزارش گردید. اهمیت این زنبورها و برنامه مدیریتی برای حفاظت از آنها مورد بحث قرار گرفته است . اسامی علمی زنبورهای گال...

A. A. RAMIN B. B. BANINASAB M. PIRMORADIAN M. ZAREI

ABSTRACT- The purpose of this study was to elucidate the effects of chemical thinning on seasonal variations of leaf and fruit mineral compositions of ‘Soltani’ apple trees. Treatments, including unthinned control, naphthalene acetic acid (NAA) at 5 and 10 mg L-1, naphthaeneacetamide (NAD) at 25 and 50 mg L-1, benzyladenine (BA) at 50 and 100 mg L-1 and carbaryl at 500 and 1000 mg L-1 were appl...

دلاور, محمدامیر , عزیزآبادی, الهه , گلچین, احمد ,

To study the effects of potassium (K) and drought stress on growth indices and mineral content of safflower leaf, a factorial experiment with 12 treatments and three replications was performed, using a completely randomized design, in the greenhouse of Soil Science Department, Zanjan University, Iran. The experimental treatments were a combination of four levels of K (80,130,180 and 230 mg/kg) ...

The foliar diagnosis can be considered as a useful tool to assess the nutritional status of plants. The diagnosis and recommendation integrated system (DRIS) has been developed for this purpose. In this study DRIS norms were determined for wheat plant (Triticum aestivum L.) in the Moghan region, northwest of Iran. A data bank created from nutrients concentrations of flag leaf and yield was use...

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