نتایج جستجو برای: fao penman

تعداد نتایج: 4452  

Journal: :Water Resources Management 2021

Reference evapotranspiration (ET0) is a crucial element for deriving irrigation scheduling of major crops. Thus, precise projection ET0 essential better management scarce water resources in many parts the globe. This study evaluates potential Hierarchical Fuzzy System (HFS) optimized by Particle Swarm Optimization (PSO) algorithm (PSO-HFS) to predict daily ET0. The meteorological variables and ...

Journal: :Journal of Arid Land 2021

High water consumption and inefficient irrigation management in the agriculture sector of middle lower reaches Amu Darya River Basin (ADRB) have significantly influenced gradual shrinking Aral Sea its ecosystem. In this study, we investigated crop growing seasons requirement for different types ADRB during 2004–2017. We applied FAO Penman-Monteith method to estimate reference evapotranspiration...

Journal: :Horttechnology 2023

Understanding plants’ response to different irrigation levels is essential for developing effective scheduling practices that conserve water without affecting plant growth and yield. The objective of this study was evaluate the responses three sweet corn ( Zea mays var. saccharata ) cultivars 1170, 8021, Battalion under (50%, 75%, 100%). Irrigation treatments were based on soil moisture managem...

Journal: :IEEE Access 2022

Accurate estimation of Reference Evapotranspiration (ET0) is important for efficient management and conservation irrigation water. Existing methods ET0 rate determination are complex application at the farmer level. Apart from standard determination, many data-driven soft computing approaches were also proposed to determine with limited data set. We a temperature humidity-...

Journal: :The Biochemical journal 1993
C Espinet A M Vargas M R el-Maghrabi A J Lange S J Pilkis

The hormonal regulation of 6-phosphofructo-2-kinase/fructose-2,6-bisphosphatase gene expression was studied in the rat hepatoma cell line FAO-1. Both 6-phosphofructo-2-kinase and fructose-2,6-bisphosphatase activities were detected in FAO-1 cells, at 68% of the levels found in rat liver. Northern blot analysis showed that FAO-1 cells, like rat liver, contained a predominant species of bifunctio...

Journal: :بوم شناسی کشاورزی 0
هدیه پوریزدان خواه تیمور رضوی پور محمدرضا خالدیان مجتبی رضایی

estimating and determining of rice water requirement, being the main cultivate of rasht region, is crucial for devoting water to this region. equations which are used to calculate the reference evapotranspiration (et0) are not match to all climatic conditions, due to their empirical bases. so, it is necessary to clarify proper methods for each region. crop coefficient (kc) is also the main para...

2013
Lameck O. Odhiambo Suat Irmak L. O. Odhiambo

Single and dual crop coefficient methods are used in conjunction with grass reference evapotranspiration (ETo) to estimate actual crop evapotranspiration (ETc). However, the impact of soil surface residue cover on the accuracy of ETc estimated with these methods is not well understood. The objective of this study is to evaluate and compare the accuracy of the FAO-56 single crop coefficient (sin...

Journal: :Water 2023

It is critical to understand how meteorological variables impact reference evapotranspiration (ETo) since have a different effect on ETo. This study examined the of ETo Korean Peninsula under complex climatic and geographic conditions in order changed over past 42 years. Different geographical were analyzed, including plains, mountains, coastal areas seasonal annual basis. was estimated using P...

Journal: :Italian journal of agrometeorology 2022

Accurate estimation of reference evapotranspiration is essential for agricultural management and water resources engineering applications. In the present study, ability precision three artificial intelligence (AI) models (i.e., Support Vector Machines (SVMs), Adaptive Neuro-Fuzzy Inference System (ANFIS) Categorical Boosting (CatBoost)) were assessed estimating daily (ET0) using limited weather...

Journal: :Molecular reproduction and development 2009
Stephen M Downs Jessica L Mosey Jonathan Klinger

We have examined the potential role of fatty acid oxidation (FAO) in AMP-activated protein kinase (AMPK)-induced meiotic maturation. Etomoxir and malonyl CoA, two inhibitors of carnitine palmitoyl transferase-1 (CPT1), and thus FAO, blocked meiotic induction in dbcAMP-arrested cumulus cell-enclosed oocytes (CEO) and denuded oocytes (DO) by the AMPK activator, AICAR. C75, an activator of CPT1 an...

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