Production and water relations of peanut irrigated with brackish water under pulse and continuous drip

Silva, Alan Henrique Santos; Júnior, José Amilton Santos; Silva, Manassés Mesquita da; Silva, Gerônimo Ferreira da; Cruz, Ruana I. F.; Medeiros, Salomão de Sousa; Freire, Martiliana Mayani

doi:10.1590/1807-1929/agriambi.v26n11p789-796

Cited by 3 publications

(1 citation statement)

References 23 publications

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“…Other than being a technique for preventing clogging in drip irrigation, pulsed application is capable of achieving other benefits. For example, the possibility of using water with higher electrical conductivity Cruz et al (2021), Pasternak and Demalach (1995), Silva et al (2022), Arriero et al (2020), Almeida et al (2018), improved water use efficiency Almeida et al (2015), Abdelraouf (2019), Visconti et al (2014), Arriero et al (2020), reduced water percolation under the root zone Elmaloglou and Diamantopoulos (2009), Hicklenton and Cairns (1996), Visconti et al (2014), reduced nitrate leaching (Cote et al, 2003), Watts and Martin (1981), and greater nutrient accumulation within the crop (Menezes et al, 2020). It is worth Rev.…”

Section: Introductionmentioning

confidence: 99%

Statistical process control in pulsed drip irrigation systems

Cossich,

Boas,

Kepp

et al. 2024

Rev. ambiente água

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Pulse drip application is a management option to prevent clogging and improve water-use efficiency. The measurement of distribution uniformity is opportune for pulse irrigation projects to ensure efficiency since the shorter the pulse time, the more negative influence the transition periods have. The objective of the present work was to monitor the quality of a drip irrigation system with different emitter models and different pulse times. The experiment was conducted under laboratory bench conditions, and 25 tests were performed for each pulse application (2, 3, 6 and 12 minutes) and emitter model (non-compensated and auto-compensated). Uniformity was determined using Christiansen's uniformity coefficient (CUC) and distribution uniformity coefficient (DUC) and monitored by Shewhart control charts and exponentially weighted moving average (EWMA). The decrease in pulse time caused a decrease in flow rate and uniformity only in drip irrigation systems with non auto-compensated emitters. However, this decrease is subtle, to the point that uniformity presented an excellent performance for all pulses tested. The use of the Shewhart and EWMA control charts were effective in monitoring the uniformity of the pulsed drip irrigation system. The Shewhart control chart was more robust in identifying isolated non-compensated uniformities, while the EWMA control chart was more sensitive in identifying unstable propensity. In the treatments with the non-compensated emitter, the statistical process control was able to identify that shorter pulse times resulted in greater application instability. As for the auto-compensated emitters, the statistical process control highlighted the concern with application uniformity after maintenance interference. Keywords: anti-drain emitter, high-frequency irrigation, irrigation interval, statistical quality control.

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Section: Introductionmentioning

confidence: 99%

Statistical process control in pulsed drip irrigation systems

Cossich,

Boas,

Kepp

et al. 2024

Rev. ambiente água

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Salt stress and potassium fertilization on the agronomic performance of peanut crop

Abreu,

Viana,

Sousa

et al. 2024

Rev. Caatinga

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In semi-arid regions, the use of brackish water for irrigation can reduce crop yields. However, the use of mineral fertilizer has been tested to mitigate salt stress. In this context, the objective was to evaluate the effect of salt stress at different phenological stages on the yield of peanut under potassium fertilization. The experiment was carried out from August to November 2021, in the experimental area of the Universidade da Integração da Lusofonia Afro-Brasileira (UNILAB), Redenção, Ceará, Brazil. The experimental design was completely randomized (CRD), in a 6 × 3 factorial scheme, with 6 replicates. Six strategies of irrigation with brackish water were applied from the following stages: vegetative (S1); flowering (S2); gynophore appearance (S3); pod formation (S4); fruiting (S5) and without salt stress (S6), and three doses of potassium: 0, 50 and 100% of the recommended dose. The use of brackish water in the vegetative stage led to lower pod length, pod mass, number of pods, number of marketable pods and yield. The dose corresponding to 100% of the recommended potassium dose mitigated salt stress in the pod formation and flowering stages, promoting a greater number of marketable pods, number of non-marketable pods, total number of pods and pod mass. The use of water with lower salinity throughout the cycle promoted greater pod mass, number of marketable pods and yield.

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Intermittence in irrigation management and nitrogen optimize yield and water use efficiency in baby lettuce

PEREIRA,

SAAD,

CARDOSO

et al. 2023

Span. j. agric. res.

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Aim of the study: To evaluate the influence of irrigation management strategies and nitrogen (N) on baby lettuce growth, yield, and water use efficiency in a protected environment. Area of study: Botucatu, SP, Brazil. Material and methods: The experiments were conducted in two consecutive cycles, and the treatments corresponded to the combination of irrigation management strategies with N doses. Irrigation strategies comprised 3 possibilities: continuous irrigation (Cont); intermittent irrigation with three irrigation pulses at one-hour intervals (Int1); and intermittent irrigation with irrigation depth split and applied at 7:00, 11:00, and 15:00 h (Int2). Two N doses were evaluated, 100 and 130 kg/ha of N, applied in daily fertigation according to the irrigation management strategies. Main results: Intermittent irrigation strategies (Int1 and Int2) promoted the highest vegetative growth, increased leaf water content, and increased total yield (49.55 and 55.30; 46.83 and 49.50 t/ha) and marketable yield (46.77 and 52.44; 45.11 and 47.17 t/ha) in the first and second cycles, respectively, in addition to optimizing water use efficiency. The N dose of 130 kg/ha increased the total yield (51.61 t/ha), marketable yield (48.98 t/ha), and water use efficiencies of total yield (53.60 kg/m³) and marketable yield (50.88 kg/m³) only in the first crop cycle. Research highlights: The use of intermittence in irrigation management proved to be more efficient in obtaining high yields and maximized the efficiency of use of water as a factor of production.

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Production and water relations of peanut irrigated with brackish water under pulse and continuous drip

Cited by 3 publications

References 23 publications

Statistical process control in pulsed drip irrigation systems

Statistical process control in pulsed drip irrigation systems

Salt stress and potassium fertilization on the agronomic performance of peanut crop

Intermittence in irrigation management and nitrogen optimize yield and water use efficiency in baby lettuce

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