نتایج جستجو برای: 2002technical efficiency of sugar beet producers were estimated using cobb
تعداد نتایج: 21470834 فیلتر نتایج به سال:
A study was conducted in 2009/2010 cropping season in order to determine energy input/out put and productivity of potato and sugar beet production systems in Isfahan province, Central Iran. The data used in this study was based on data collected from growers by using a face to face survey. Total energy consumption and total out put enegy in potato production systems were calculated to be about ...
burnout is a response to the chronic work stress which is prevalent mostly among the people who do people job, like teaching. the purpose of this study was to develop a valid and reliable instrument that can measure burnout in foreign language teachers. although some widely used instruments were developed before which measured burnout in teachers, a specific instrument which include specific sy...
sugar beet is an important crop from the point of production and consumption. in this case, fars province is one of the largest producers iniran. the purpose of this study was to determine the effective factors on sugar beet supply. accordingly, time series information of the crop was collected from 1990 to 2004 infarsprovince and were analyzed through nerlove partially adjustment model that is...
abstract amino acids are building blocks of proteins, and play a vital role in living beings existence and their functionality. the interaction of these compounds with metal ions is of great importance to biochemists, and chemists, because their functions can be utilized as a model in understanding enzymes mechanism for transport of metal ions to tissues. among twenty essential amino acids w...
autumn sugar beet sowing has priority to its spring sowing in terms of economic productivity and water use efficiency. in khorasan razavi and khorasan-e-jonobi provinces, sugar beet is only sown in spring. therefore, it is necessary to evaluate the feasibility of autumn sugar beet sowing in these regions. using geographical information systems is the best and inexpensive way to identify suitabl...
irrigation requirement equals the difference between water requirement and effective rainfall which can be estimated by considering the water application efficiency. the values of water requirement and irrigation requirement of sugar beet have been reported using netwat program in different regions ofiran. however, the mean values were used in this program; therefore the values of water and irr...
abstract: the present study was undertaken to investigate whether 1) there is any significant correlation between iranian efl/eap learners’ l2 writing proficiency and their willingness to communicate, 2) there is any significant difference between efl and eap learners in terms of willingness to communicate, 3) there is any significant difference in wtc of iranian efl/eap learners with 1- nati...
because of world population increase and lack of appropriate food production, it is necessary that the developing countries make fundamental changes in their traditional production systems through utilizing new agronomical methods, farm management principles, and proper marketing. this study aimed to analyze factors involved in sugar beet production challenges in harsin city, kermanshah provinc...
for evaluation of efficiency and yield per surface unit with using the 56 sugar beet producer countries data in year 2005 an econometric model based on cols method has presented. with this model maximum sugar beet production efficiencies considering the harvested area and annual rainfall measure and level of mechanization has been determined. in total iran with production efficiency 0.43 is in ...
abstract plant species differ in their ability to grow at low available p soils in other words, plant species differ in p use efficiency at low p supply. this ability can be investigated by comparing p uptake efficiency of plants and relative effective factors. a pot experiment was carried out in the growth chamber and sugar beet, maize and groundnut were grown in a low available p soil in a co...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید