نتایج جستجو برای: yield production function

تعداد نتایج: 1911023  

Journal: :تحقیقات مهندسی کشاورزی 0
جلال محمدزاده عضو هیئت علمی بخش تحقیقات فنی مهندسی مرکز تحقیقات کشاورزی و منابع طبیعی گلستان محمدرضا احمدی کارشناس ارشد بخش تحقیقات اصلاح و تهیه نهال و بذر مرکز تحقیقات کشاورزی و منابع طبیعی گلستان

olive oil is one of the oldest known vegetable oils, ranking sixth in world production. since it is extractedfrom fresh fruit and used without aging, the conditions of oil production are very important. during theextraction of virgin olive oil, the milling and malaxation steps are vital for increasing oil yield and quality.in this study, the effect of milling (single or double), temperature of ...

Ammar Afkhami Ghadi Ammar Gholizadeh Ghara, Ghorbanali Nematzadeh Marzieh Rezaei Morteza Oladi

Grain quality currently represents a major problem in high yielding rice production in Iran and many other rice producing areas of the world. Quality assessment of rice involves the function of sensory tests and physicochemical determinations based on the chemical composition, cooking quality, gelatinization temperature and physical properties of cooked rice. These research genetic materials we...

Lack of available water in arid and semi-arid regions has a negative effect on the production of soybean (Glycine max L.). Nano zinc chelate (ZnO) has the potential to alleviate this issue through overcoming zinc deficiency and thereby improve plant function. Therefore, to evaluate the effectiveness of ZnO application on soybean in drought stress conditions, a split-plot experiment based on ran...

ژورنال: علوم آب و خاک 2008
خلیلی, علی , رحمانی, الهام , لیاقت, عبدالمجید ,

The growing season climatic parameters, especially rainfall, play the main role to predict the yield production. Therefore, the main objective of this research was to find out some possible relations among meteorology parameters and drought indexes with the yield using classical statistical methods. To achieve the objective, ten meteorological parameters and twelve drought indexes were evaluate...

In the present study, the effects of four factors including initial sulfide concentration (mg l-1 ), agitation speed (rpm), amount of inoculums (%) and sodium concentration (mg l-1) on removal efficiency (%R) and yield of sulfate production by Thioalkalivibrio versutus from synthetic spent caustic were investigated. For this purpose, experiments are designed by design of experiments (DOE) and R...

Anuja Rijal Binod Ghimire Chandra Kant Dhakal Sujeeta Sharma,

This study considered the production economics of coffee in Pakuwa village development committee of Parbat district, Nepal. Household Survey was done in June 2014. Data collection was done using semi-structured pre-tested questionnaire administered on 40 coffee producers selected randomly. Gross margin analysis, profitability index and the benefit-cost ratio was used to analyze the production e...

Ammar Afkhami Ghadi Ammar Gholizadeh Ghara, Ghorbanali Nematzadeh Marzieh Rezaei Morteza Oladi

Grain quality currently represents a major problem in high yielding rice production in Iran and many other rice producing areas of the world. Quality assessment of rice involves the function of sensory tests and physicochemical determinations based on the chemical composition, cooking quality, gelatinization temperature and physical properties of cooked rice. These research genetic materials we...

Journal: :Applied and environmental microbiology 1990
J F Alberts W C Gelderblom P G Thiel W F Marasas D J Van Schalkwyk Y Behrend

The kinetics of the production of fumonisin B1 (FB1) by Fusarium moniliforme MRC 826 in corn cultures was investigated as a function of fungal growth at various incubation temperatures. The growth rate of F. moniliforme, as measured by ergosterol concentration, was higher at 25 degrees C than at 20 degrees C, reaching a stationary phase after 4 to 6 weeks in both cases. FB1 production commenced...

2017
Patricio Grassini Haishun Yang Suat Irmak John Thorburn Charles Burr Kenneth G. Cassman

Appropriate benchmarks for water productivity (WP), defined here as the amount of grain yield produced per unit of water supply, are needed to help identify and diagnose inefficiencies in crop production and water management in irrigated systems. Such analysis is lacking for maize in the Western U.S. Corn Belt where irrigated production represents 58% of total maize output. The objective of thi...

ژورنال: علوم آب و خاک 2009
سادات باریکانی, سیدحامد, ساسولی, محمدرضا, کاوسی کلاشمی, محمد, کوپاهی, مجید,

Risk and uncertainty have an important role in determining farmers' goals and their decision making. Risk affects optimal use of inputs and production efficiency. Using production inputs especially new inputs is one of the effective factors in production risk hence, it is necessary to obtain information about inputs use risk in order to find solution to risk management. For investigating effect...

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