Test of a microlysimeter for measurement of soil evaporation

Flumignan, D. L.; Faria, Rogério Teixeira de; Lena, Bruno Patias

doi:10.1590/s0100-69162012000100009

Cited by 26 publications

(33 citation statements)

References 14 publications

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“…The same was stated by Dalmago et al (2010) and Flumignam et al (2012). The Ke values had high comparison coefficients when ripening growth stage data were not included in the analysis.…”

Section: Discussionsupporting

confidence: 58%

“…The microlysimeter is PVC pipe filled up with soil, installed between crop rows and weighted periodically to calculate the mass difference by evaporation during the period desired. Flumignam et al (2012) compared the water evaporation from the soil lysimeters and microlysimeters, and concluded that the use of microlysimeters is valid. Dalmago et al (2010) validated the use of microlysimeters for absolute measurements and relative values of water evaporation from the soil to compare the planting methods.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Determination of wheat crop coefficient (Kc) and soil water evaporation (Ke) in Maringa, PR, Brazil

Paulo¹,

Paulo²,

Andre³

et al. 2016

Afr. J. Agric. Res.

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The objective of the present study was to determine the crop coefficient (Kc) of wheat and soil water evaporation (Ke) in Maringá, PR, Brazil. Wheat crop evapotranspiration (ETc) was determined through the water balance method, using drainage lysimeters integrated with soil moisture measurements. The ETo was calculated using the Penman-Monteith equation with climate data from an automatic weather station, then Kc was calculated. Microlysimeters were built, using PVC pipes with 100 mm diameter and 150 mm length, which were weighted every day to obtain the quantity of water evaporated and then the soil water evaporation coefficient (

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“…The same was stated by Dalmago et al (2010) and Flumignam et al (2012). The Ke values had high comparison coefficients when ripening growth stage data were not included in the analysis.…”

Section: Discussionsupporting

confidence: 58%

Section: Introductionmentioning

confidence: 99%

Determination of wheat crop coefficient (Kc) and soil water evaporation (Ke) in Maringa, PR, Brazil

Paulo¹,

Paulo²,

Andre³

et al. 2016

Afr. J. Agric. Res.

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“…Four microlysimeters with diameter of 150 mm and height of 200 mm were used in the determination of soil evaporation and later determination of daily soil evaporation coefficient (k e ), according to the methodology proposed and adapted by Flumignam et al (2012). Soil evaporation (E ML ) was determined according to Eq.…”

Section: Methodsmentioning

confidence: 99%

Dual crop coefficient of common bean in Tangará da Serra, Mato Grosso

Fenner

Dallacort

Freitas

et al. 2016

Rev. bras. eng. agríc. ambient.

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A B S T R A C TThis study aimed to determine the dual crop coefficient of common bean (Phaseolus vulgaris L.) for Tangará da Serra-MT, Brazil. The study used the FAO-56 dual k c method, dividing the k c into soil evaporation coefficient (k e ), determined in microlysimeters, and basal crop coefficient (k cb ), determined in weighing lysimeters. The study was conducted from July 10 (sowing) to October 6, 2014 (harvest), using the common bean cultivar 'BRS Estilo' and a sprinkler irrigation system with a coefficient of uniformity greater than 80%. The total rainfall and irrigation during the crop cycle (84 days) was 524.8 mm; the potential evapotranspiration (ET o ) estimated for the period was 327.9 mm, whereas the crop evapotranspiration (ET c ) accumulated during the cycle, determined in lysimeters, was equal to 477.5 mm. The k cb values determined for the initial, full development and final stages were 0.32, 1.10 and 0.81, respectively, while for k e , the respective values were 0.85, 0.40 and 0.53.Coeficiente dual de cultivo do feijoeiro em Tangará da Serra, Mato Grosso R E S U M O Objetivou-se determinar, na presente pesquisa, o coeficiente duplo de cultivo do feijoeiro (Phaseolus vulgaris L.) na região de Tangará da Serra, MT, Brasil. A metodologia utilizada foi a do k c dual da FAO dividindo-se o coeficiente de cultivo (k c ) em coeficiente de evaporação do solo (k e ) determinado em microlisímetros e coeficiente basal da cultura (k cb ), determinado em lisímetros de pesagem. A cultivar de feijoeiro utilizada foi a BRS Estilo; o estudo foi realizado no período de 10/07/2014 (semeadura) a 06/10/2014 (colheita); a irrigação por aspersão foi utilizada com coeficiente de uniformidade superior a 80%; a lâmina total precipitada e irrigada durante o ciclo da cultura (84 dias) foi 524,8 mm; a evapotranspiração potencial (ET o ) estimada no período foi de 327,9 mm enquanto que a evapotranspiração da cultura (ET c ) acumulada, determinada em lisímetros, foi de 477,5 mm; o k cb determinado para as fases inicial, pleno desenvolvimento e final, foi 0,32; 1,10 e 0,81, respectivamente; para o k e , os valores foram 0,85; 0,40 e 0,53, nas fases inicial, pleno desenvolvimento e final, respectivamente. Key words:Phaseolus vulgaris basal crop coefficient evaporation coefficient irrigation Palavras-chave:Phaseolus vulgaris coeficiente basal da cultura coeficiente de evaporação irrigação

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“…Yunusa et al (1994) used a 1.1-metre-deep weighing lysimeter with a 2.27 m 2 cross-section to validate the Ritchie (1972) and Boesten and Stroosnijder (1986) E s models. Flumignan et al (2012) showed that there was close agreement between E s determined using micro-lysimeters and 1.3-metre-deep weighing lysimeters, respectively.…”

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confidence: 67%

Determining input values for a simple parametric model to estimate evaporation from vineyard soils with special reference to clay content and trellis system

Myburgh¹

2015

South African Journal of Plant and Soil

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Estimating soil evaporation (E s) is an important part of modelling vineyard evapotranspiration for irrigation purposes. Furthermore, quantification of possible soil texture and trellis effects is essential. Daily E s from six topsoils packed into lysimeters was measured under grapevines on slanting and vertical trellises, respectively. Following irrigation, cumulative soil evaporation (E s) from the bare, untilled soils over 14-day drying cycles was plotted against cumulative reference evapotranspiration (ET o) to determine E s transition from the constant rate stage (Stage 1) to the falling-rate stage (Stage 2). During Stages 1 and 2, rate of E s is determined by atmospheric conditions and soil properties, respectively. Slopes of E s vs square root of ET o plots in Stage 2 provided the input constant ( value) for each soil. In Stage 1, E s was almost equal to ET o but the ratio varied as grapevine canopies developed. The  values varied between 2.15  0.09 mm 0.5 and 4.68 ± 0.14 mm 0.5. The  values were best related to clay content (R 2 was 0.7861 and 0.5108 for horizontal and vertical canopies, respectively). The vertical trellis seemed to have a windbreak effect that tended to reduce E s compared to the slanting trellis. Therefore, clay content and trellis orientation effects on  need to be considered.

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Test of a microlysimeter for measurement of soil evaporation

Cited by 26 publications

References 14 publications

Determination of wheat crop coefficient (Kc) and soil water evaporation (Ke) in Maringa, PR, Brazil

Determination of wheat crop coefficient (Kc) and soil water evaporation (Ke) in Maringa, PR, Brazil

Dual crop coefficient of common bean in Tangará da Serra, Mato Grosso

Determining input values for a simple parametric model to estimate evaporation from vineyard soils with special reference to clay content and trellis system

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