Distribution of water in sandy soil applied by drip

Gonçalves, Antônio Carlos Andrade; Alves, Daniel Soares; Marques, Patrícia Angélica Alves; Folegatti, Marcos Vinícius; José, Jefferson Vieira

doi:10.1590/s0100-69162014000600013

Cited by 2 publications

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References 22 publications

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“…Thus, many studies have been conducted in order to determine crop evapotranspiration and soil water dynamics for the optimization of irrigation systems (Flumignam et al, 2011;Gonçalves et al, 2014;Santos Júnior et al, 2015), as well as to indicate the best cultivation periods, due to the irregularities in the rainfall regimes (Barbieri et al, 2014).…”

Section: Introductionmentioning

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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Section: Introductionmentioning

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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“…Water distribution within a wet bulb vary according to several factors such as water applied volu me and flow rate, dripper position, arrangement (point source or source line) and number, as well as soil physical properties, spatial distribution, plant root-system activity and irrigation management (Colo mbo et al, 2013;Gonçalves et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

Soil Solution Distribution in Subsurface Drip Irrigation in Sugarcane

Souza

Bizari

2018

Eng. Agríc.

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Given the lack of studies on subsurface drip irrigation in sugarcane plantations, there has been a growing demand for such information, mainly regarding soil solution profile and availability to plants. Thus, this study aimed to evaluate the effects of soil-water solution distribution on qualitative and quantitative traits of sugarcane irrigated by subsurface drip irrigation at two flows (1.6 and 3.5 L h -1 ). For each application rate, four PVC containers (500 L) were used and filled with sandy soil, where a set of 36 TDR probes was installed. Drippers were placed at a depth of 0.30 m. Irrigation was managed based on TDR daily measurements, maintaining soil moisture within the root zone at field capacity. Sugarcane variety used was RB 845210, being fertigated according to soil chemical analysis. The results showed that the distribution of soil-water solution became stable at different depth layers during applications, highlighting a relationship between soil solution storage and wetted soil volume. Moreover, irrigation flow rates had no effect on the distribution of water and nutrients throughout the soil profile, neither crop yield, technological quality nor root density.

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Distribution of water in sandy soil applied by drip

Cited by 2 publications

References 22 publications

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

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

Soil Solution Distribution in Subsurface Drip Irrigation in Sugarcane

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