نتایج جستجو برای: samani method
تعداد نتایج: 1630202 فیلتر نتایج به سال:
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The FAO-56 Penman–Monteith (PM) equation is regarded as the most accurate to estimate reference evapotranspiration (ETo). However, it requires a broad range of data that may not be available or reasonable quality. In this study, nine temperature-based methods were assessed for ETo estimation during irrigation at fourteen locations distributed through hot-summer Mediterranean climate region Alen...
The proposed method for calculation of potential evapotranspiration is Penman-Monteith FAO method, but there are other methods that require less meteorological data but estimates close to the FAO Penman-Monteith method in different climatic conditions. Performance evaluation of these methods on the same basis is prerequisite for selecting an alternative approach in accordance with available da...
all analytical methods are generally based on the measurement of a parameter or parameters which are somehow related to the concentration of the species.an ideal analytical method is one in which the concentration of a species can be measured to a high degree precision and accuracy and with a high sensitivity. unfortunately finding such a method is very difficult or sometimes even impossible.in...
This paper aimed to propose the development of a digital irrigimeter, in order assist water sizing, be used sprinkler irrigation process, different cultures. From realization market research, it was verified existence gap represented by individuals who have difficulty dimensioning water, irrigation. Thus, Hargreaves-Samani methodology, for calculations optimum amount precipitated, per square me...
for several years, researchers in familiarity of efl teachers with post-method and its role in second and foreign language learners’ productions have pointed out that the opportunity to plan for a task generally develops language learners’ development (ellis, 2005). it is important to mention that the critical varies in language teaching was shown is the disappearances of the concept of method ...
in the area of vocabulary teaching and learning although much research has been done, only some of it has led to effective techniques of vocabulary teaching and many language learners still have problem learning vocabulary. the urge behind this study was to investigate three methods of teaching words. the first one was teaching words in context based on a traditional method of teaching that is,...
for the purposed water resources management, irrigation scheduling, water usage optimization and gaining maximum yield two step fao method was applied to determine the water requirement (evapotranspiration) of sugar beet. in this paper reference evapotranspiration were computed from recorded meteorological data at 38 weather stations using the hargreaves-samani method; and then through applyin...
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