this study is carried out to estimate the potential evapotranspiration (pet) and crop coefficient (kc) for wheat, bl 3235 variety. a lysimeter is installed to estimate pet at the experimental farm of agricultural research center of bhairahawa, which is located in western part of nepal. the blaney-criddle formula is used to estimate the kc for wheat. the estimated values of pet and kc for wheat ...

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abstract one of the losses decrease's ways in fields, is the proper irrigation management, which its base is the accurate estimation of crop water requirement. equations which are used to calculate the reference evapotranspiration (eto), do not use the same climatic parameters and due to their empirical base, are not match to all climatic situations. so it is needed to clarify proper methods fo...

Soil temperature can be influenced by rapidly infiltrating water. Deviations from a uniform soil heat distribution could result vertical preferential flow (VPF) and lateral subsurface (LSF) events. The objective was to identify the effect of infiltration on time series in lysimeter with forced movement that sloping field distinguish between VPF LSF. Wavelet coherence analysis (WCA) used analyze...

Goal. To study the effectiveness of growing soybeans on drained soddy podzolic soil at different levels organo-mineral nutrition without regulation (natural moistening), and with water-air regime (using lysimeter devices), determine most optimal crop fertilizer system. Methods. Lysimeter (lysimeter collectors vaporizers), laboratory analytical, system analysis, comparison, processing experiment...

this study aimed at determining the evapotranspiration and crop coefficient (kc) of sugar beet during the plant growth using drainage lysimeter by using water balance and experimental methods for three years in shahrekord. after sugar beet planting and out of lysimeter, evapotranspiration was measured weekly and monthly by measuring the factors of the water- balance equation. results showed tha...

[1] Heterogeneity in small‐scale subsurface flow processes does not necessarily lead to complex system behavior at larger scales. Here we use the simple dynamical systems approach recently proposed by Kirchner (WRR, 2009) to analyze, characterize, and simulate streamflow dynamics in the Swiss Rietholzbach catchment. The Rietholzbach data set used here provides 32 years of continuous and high‐qu...