Lâminas de irrigação e formas de adubação na produção de tomate de mesa

Lima, Taynara Peres de; Filho, Raimundo Rodrigues Gomes; Cadore, Rafael; Freitas, Douglas Siqueira; Carvalho, Clayton Moura de; Netto, Antenor Oliveira de Aguiar

doi:10.25066/agrotec.v38i1.30503

Cited by 3 publications

(2 citation statements)

References 7 publications

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“…Several authors studying the fruit yield of tomato plants under different irrigation water depths have reported a linear and positive relationship between tomato yield and irrigation levels, similar to the present study [33,46].…”

Section: Number Of Irrigation Events Fruit Yield and Water Use Efficiencysupporting

confidence: 90%

“…The crop response to deficit irrigation depends on the period and extent of water deficit [32]. The results obtained in this study were similar to [33], which investigated the effect of irrigation levels on tomato plants grown in a greenhouse and reported no significant differences in plant height of plants subjected to different treatments.…”

Section: Morphological Parameterssupporting

confidence: 85%

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Horticultural Performance of Greenhouse Cherry Tomatoes Irrigated Automatically Based on Soil Moisture Sensor Readings

Oliveira¹,

Campos²,

Mesquita

et al. 2021

Water

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Precision irrigation is essential to improve water use efficiency (WUE), defined as the amount of biomass produced per unit of water used by plants. Our objective is to evaluate the effect of different soil volumetric water content (VWC) in plant growth, fruit yield, quality, and WUE of cherry tomatoes grown in a greenhouse. We tested four VWC thresholds (0.23, 0.30, 0.37, and 0.44 m3 m−3) to trigger a drip irrigation system in two tomato cultivars (‘Sweet Heaven’ and ‘Mascot F1′). The experiment was arranged in a split-plot design with four replications. We used capacitance sensors connected to an open-source, low-cost platform to monitor and control the irrigation in real-time based on demand. Plants were watered every time the soil VWC dropped below the set thresholds. The treatment with VWC 0.44 m3 m−3 resulted in the highest fruit yield, with 102.10% higher WUE when compared to the VWC 0.23 m3 m−3 in both cultivars. Fruit quality traits such as longitudinal and equatorial diameter increased asymptotically with soil water content. In contrast, treatments with deficit irrigation increased the fruit soluble solids by 15.73% in both cultivars. These results strongly suggest that accurate control of the soil VWC is essential to modulate the fruit yield and quality attributes in tomatoes produced in the greenhouse.

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Section: Number Of Irrigation Events Fruit Yield and Water Use Efficiencysupporting

confidence: 90%

Section: Morphological Parameterssupporting

confidence: 85%

Horticultural Performance of Greenhouse Cherry Tomatoes Irrigated Automatically Based on Soil Moisture Sensor Readings

Oliveira¹,

Campos²,

Mesquita

et al. 2021

Water

View full text Add to dashboard Cite

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Adjusting Irrigation and Phosphate Fertilizer to Optimize Tomato Growth and Production

Lopes Sobrinho,

dos Santos,

Soares

et al. 2024

Agronomy

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The efficient use of phosphate fertilizers and optimization of the amounts of irrigation water can maximize tomato growth and fruit production. This study aimed to evaluate the effects of different phosphorus (P) doses and sources on the growth and production components of tomato plants of the cultivar Gaúcho Melhorado Nova Seleção subjected to different irrigation water percentages. To achieve this, we set up an experiment using a factorial design to test the effects of four doses of P2O5 (corresponding to 25%, 50%, 100%, and 200% of the recommended dose), two P sources (monoammonium phosphate—MAP and organomineral—OM), and four irrigation water percentages (50%, 75%, 100%, and 125% of field capacity). Tomato plant growth improved when water was supplied at a percentage close to 100% of field capacity, with increased plant height, leaf length, and number of flowers observed (increases of 11.95%, 7.33%, and 13.87%, respectively, compared to 50% of field capacity). However, both excess and deficit irrigation resulted in morphological changes in tomato plants. Additionally, we observed that OM was more effective than MAP in increasing plant diameter and number of flowers, with increases of up to 36.4% and 227.6%, respectively, when using OM. Conversely, tomato growth was negatively affected by higher doses of MAP doses, suggesting that 25% of the recommended dose may yield the best growth rates. We verified that tomato plants can compensate for low phosphorus doses by increasing productivity with higher water amounts (125%–42.40 t ha−1), but high phosphorus doses result in greater fruit production with lower water percentages (50%–41.52 t ha−1).

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Manejo autônomo da irrigação do tomateiro utilizando sensores Irrigás® de solo

Wamser

Feltrim

Valmórbida

et al. 2021

RAC

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O objetivo deste estudo foi avaliar e validar o uso do sensor Irrigas® de solo no manejo autônomo da irrigação do tomateiro, na região de Caçador, SC. Na safra 2016/17 foi conduzido um experimento em ambiente protegido avaliando cinco tensões de umidade do solo (20, 30, 40, 50 e 60 kPa) para o início da irrigação. Na safra 2017/18 foi conduzido um experimento a campo avaliando três manejos da irrigação (manejo autônomo da irrigação baseado nos sensores Irrigás®; manejo da irrigação baseado na tensiometria convencional; e manejo da irrigação sem critério técnico). Na safra 2018/19 foram avaliados os mesmos manejos da irrigação da safra anterior, com exceção do manejo da irrigação sem critério técnico. Por fim, na safra 2019/2020 foi conduzida uma unidade de validação em ambiente protegido avaliando o manejo autônomo da irrigação do tomateiro baseado no sensor Irrigás®. Na safra 2016/17 a maior produção de frutos comercializáveis (10,9 kg planta-1) foi obtida na tensão de umidade do solo estimada de 44 kPa. Na safra 2017/18 não houve diferenças entre os manejos de irrigação avaliados. Já na safra 2018/19 o manejo da irrigação baseado no sensor Irrigás® obteve produtividade de frutos comercializáveis 18% superior ao manejo baseado na tensiometria convencional. Os sensores Irrigás® permitiram o manejo autônomo da irrigação do tomateiro cultivado em ambiente protegido durante todo o ciclo.

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Lâminas de irrigação e formas de adubação na produção de tomate de mesa

Cited by 3 publications

References 7 publications

Horticultural Performance of Greenhouse Cherry Tomatoes Irrigated Automatically Based on Soil Moisture Sensor Readings

Horticultural Performance of Greenhouse Cherry Tomatoes Irrigated Automatically Based on Soil Moisture Sensor Readings

Adjusting Irrigation and Phosphate Fertilizer to Optimize Tomato Growth and Production

Manejo autônomo da irrigação do tomateiro utilizando sensores Irrigás® de solo

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