Potassium fertilization via fertigation and conventional application on quality of tomato fruits

Neto, Mario de Oliveira Rebouças; Azevedo, Benito Moreira de; Viana, Thales Vinícius de Araújo; Mesquita, José Bruno Rego de; Carvalho, Marco Antônio Rosa de; Carvalho, L.

doi:10.1590/1807-1929/agriambi.v20n10p913-917

Cited by 7 publications

(5 citation statements)

References 15 publications

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“…The ratio for the tomato crop has indexes within the acceptable range (palatability considered 'tasty') with values above 10, as referred by [38]. In the present study, it was possible to verify that, for all treatments, the values were higher than previously mentioned, thus demonstrating that the fruits have the potential for processing [45].…”

Section: Discussionsupporting

confidence: 61%

“…For the titratable acidity, the results found from the physico-chemical analysis are expected for the tomato culture, which is from 0.3 to 0.4 g 100 g −1 [35][36][37]. There is an inverse relationship between titratable acidity and pH, where the higher the acidity, the lower the pH [38] and vice versa. Interestingly, this behavior is observed in this work.…”

Section: Discussionmentioning

confidence: 76%

“…Interestingly, this behavior is observed in this work. It is noteworthy to mention that [38,39] also found, in their studies, that different concentrations of fertigation did not interfere with the pH of the fruit, and the average values obtained were 4.98 and 5.01, respectively. These, data corroborate with the results obtained in this study.…”

Section: Discussionmentioning

confidence: 77%

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Productive and Physico-Chemical Parameters of Tomato Fruits Submitted to Fertigation Doses with Water Treated with Very Low-Frequency Electromagnetic Resonance Fields

Putti

Nogueira

Souza

et al. 2022

Plants

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It is known that poorly performed fertigation directly impacts on tomato production and biometric components. In addition, consumers are also affected by interrelated characteristics that interfere with the acceptability of the fruit, such as the physicochemical parameters and nutrients in the fruit. Thus, eco-friendly technologies, such as irrigation with ultra-low frequency electromagnetic treated-water, which attenuates the inadequate management of fertigation, are essential to improve marketable fruit yields. Thus, the objective of the present work was to investigate the impact of treated water with very low-frequency electromagnetic resonance fields in physical, chemical and nutritional parameters at different nutrient solution strengths in tomato fruits. In this study, experiments were carried out in randomized blocks and five doses of fertigation were used (1.5; 2.5; 4.0; 5.5; and 7.0 dS m−1), employing two types of water: electromagnetically treated and untreated. It can be seen that the fertigation affected some parameters, mainly the number of fruits with blossom-end rot, fruit size, and weight. Variance analysis (ANOVA) was performed with the subsequent use of the Tukey test. In all statistical tests, a confidence level of 95% was considered. The soluble solids content increased by 28% as a function of the fertigation doses. The electromagnetically treated water reduced the number of fruits with blossom-end rot by 35% (p < 0.05). Overall, electromagnetic water improved the physicochemical quality parameters and the nutritional status of tomato fruits. Thus, this study demonstrated that green technology could leverage tomato fruit production and quality.

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Section: Discussionsupporting

confidence: 61%

Section: Discussionmentioning

confidence: 76%

Section: Discussionmentioning

confidence: 77%

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Productive and Physico-Chemical Parameters of Tomato Fruits Submitted to Fertigation Doses with Water Treated with Very Low-Frequency Electromagnetic Resonance Fields

Putti

Nogueira

Souza

et al. 2022

Plants

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“…Rebouças Neto et al (2016) assessed the effects of potassium (K) drip fertigation and conventional K fertilization on tomato crop quality. They find that Potassium fertilization applied through fertigation (400 kg ha -1 of K 2 O) increased the content of soluble solids and the ratio between soluble solids and titratable acidity in tomato fruits.…”

Section: Analysis Of the Genotype-environment Interaction With The Ammi Modelmentioning

confidence: 99%

Estimating genotype-environment interactions for internal fruit quality traits in cherry tomatoes

Ceballos-Aguirre¹,

Cabrera²,

Morillo-Coronado³

2020

Rev. Colomb. Cienc. Hortic.

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Genotype-environment interactions (GEI) were assessed in 10 cherry tomato accessions in nine environments, including four artificial settings (0, 60 120, and 180 kg ha-1 of potassium) established on the experimental farms Montelindo (Palestina), Tesorito (Manizales), and CEUNP (Palmira) (Colombia). The plant material included 10 cherry tomato genotypes obtained from the germplasm bank at the Instituto Agronómico de Campinas and Tomato Genetics Resources Center (TGRC). A completely randomized block design with four blocks corresponding to the level of potassium fertilization was used (0, 60, 120, 180 kg ha-1); 0 kg ha-1 was the level reported for the soil. The effective size of the experiment unit was seven plants; the plot included the five central plants. A distance of 1.5 m between rows, 0.50 m between plants, and 2 m between blocks was used. The contents of soluble solids (°Brix), vitamin C (mg/100 g fresh weight), and lycopene (µg g-1 fresh weight) were assessed. The analysis of variance (ANOVA) showed significant differences (P<0.01) between the tomato genotypes, environments, and G×E interactions for the three assessed traits . The AMMI analysis identified similar and contrasting environments and determined the genotypes that contributed the most to the GEI. The environments with 120 and 180 kg ha-1 potassium favored the expression of vitamin C, while Palmira favored the lycopene content. The findings are useful for identifying optimal locations and elite genotypes that can be used as sources of variability in fruit quality improvement programs for cherry tomatoes.

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“…Esse nutriente também é responsável pelo aumento na produtividade e qualidade de frutos tomates, pois está associado a processo de síntese e translocação de carboidratos nos mesmos. No ententanto, em excesso, opotássio pode interferir na absorção de cálcio e magnésio pela planta (REBOUÇAS NETO et al, 2016).…”

Section: Exigência Nutricionalunclassified

Uso de fertilizante de liberação controlada no cultivo de tomate em ambiente protegido

Conceição¹

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Uso de fertilizante de liberação controlada no cultivo de tomate em ambiente protegido / Vivyan Justi Conceição. --versão revisada de acordo com a Resolução CoPGr 6018 de 2011. --Piracicaba, 2022. 42 p. Tese (Doutorado) --USP / Escola Superior de Agricultura "Luiz de Queiroz". 1. Fertilizante de eficiência aprimorada 2. Fertirrigação 3. Solanum lycopersicum L. I. Título DEDICATÓRIA Ao meu filho Vitor, dedico. AGRADECIMENTOSAgradeço ao CNPQ pela bolsa concedida.À empresa Haifa pelo financiamento do meu projeto de doutorado.Ao programa de Pós-graduação em Fitotecnia da ESALQ/USP. Aos meus mentores que me guiaram para que eu chegasse até a conclusão dessa etapa tão importante para mim.À minha família, primeiros professores dos aprendizados que necessitei.Ao meu filho, todo meu amor! Ao Leandro Fidanza, minha gratidão! À Escola Superior de Agricultura Luiz de Queiroz, minha gratidão, respeito e admiração e uma casa para sempre.Á minha orientadora Simone Costa Mello, pela amizade, pelo apoio, pela parceria e pelos ensinamentos.A todos que, durante essa jornada, cheia de desafios, aprendizados e ensinamentos acreditaram em mim e que por algum momento ou situação compartilharam comigo, meu respeito e gratidão.Às portas que se abriram, e também as que se fecharam e às oportunidades que obtive, obrigada por tanto aprendizado! Aos colegas de pós-graduação e aos da graduação que me auxiliaram em algum momento, seja nas atividades de campo ou de alguma outra maneira: muito obrigada.Obrigada Bruna Godinho, estudante de graduação, que me auxiliou como estagiária bolsista na execução do projeto.Ao grupo GEPOL, obrigada pelo apoio. Á Deus, acima de todas as coisas.

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Potassium fertilization via fertigation and conventional application on quality of tomato fruits

Cited by 7 publications

References 15 publications

Productive and Physico-Chemical Parameters of Tomato Fruits Submitted to Fertigation Doses with Water Treated with Very Low-Frequency Electromagnetic Resonance Fields

Productive and Physico-Chemical Parameters of Tomato Fruits Submitted to Fertigation Doses with Water Treated with Very Low-Frequency Electromagnetic Resonance Fields

Estimating genotype-environment interactions for internal fruit quality traits in cherry tomatoes

Uso de fertilizante de liberação controlada no cultivo de tomate em ambiente protegido

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