Reposição Deficitária De Água E Adubação Com Organomineral No Crescimento E Produção De Tomateiro Industrial

Almeida, M. J. de O.; Sousa, Cleiton Mateus; Rocha, Mariella Camargo; Benites, V. de M.; Polidoro, J. C.

doi:10.15809/irriga.2019v24n1p69-85

Cited by 4 publications

(5 citation statements)

References 9 publications

(11 reference statements)

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“…Under favorable conditions, plants prioritize vegetative development since it is the acquired vegetative mass that supplies the need for photoassimilates that fruits demand when they start to appear. Therefore, a well-nourished plant can produce greater amounts of photoassimilates which later results into growth in height (BATISTA et al, 2015;ALMEIDA et al, 2019). The results found in this work supports this idea, in which, regardless of the source used, greater values of PH were observed when P was applied.…”

Section: Resultssupporting

confidence: 76%

Influence of the use of slow-release phosphate fertilizers on the growth and production of chili peppers

et al. 2021

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In general, fertilization recommendations for pepper are old and scarce. Because pepper is a semi-perennial crop with high yield potential and dependence on phosphorus (P), an extremely important element, as it participates in several metabolic processes, it is necessary to look for efficient alternatives for phosphatefertilization, due to its low availability and high adsorption capacity in most Brazilian soils. Slow-release fertilizers have been shown to be an excellent alternative to conventional mineral fertilization. Therefore, the objective of this study was to evaluate the effect of different sources of P on growth and yield of hot pepper (Capsicum frutescens L.). An experiment was carried out in a greenhouse in the JK campus of UFVJM, Diamantina -MG, Brazil, arranged in a completely randomized design with eleven treataments(absence of fertilization, mineral treatment, organic treatment and four slow-release phosphate sources: pelleted organomineral, granulated organomineral, MAP coated and triple formulated, at doses of 150 and 300 kg ha-1 of P2O5). Growth variables, fresh and dry matter accumulation and yield were evaluated 180 days after planting. The pelleted and granulated organomineral treatments at the dose of 300 kg ha-1 of P2O5,promoted the best results for the parameters dry mass of root, number of fruits per plant, fresh and dry mass of fruits and total yield. Such results can be explained by the better efficiency of P release and the better absorptionof this nutrient by the plant, making it an excellent option in relation to conventional sources commonly adopted.

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Section: Resultssupporting

confidence: 76%

Influence of the use of slow-release phosphate fertilizers on the growth and production of chili peppers

et al. 2021

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“…Fruit growth is affected by the water status (Soares et al, 2011), thus, decreases in fruit growth and size are connected to daily increases or decreases in plant water potential and soil water contents. When receiving organomineral fertilization, tomato plants grow more, ensuring a better nutritional balance in their tissues and favoring the transport of photoassimilates, water and nutrients, which improves fruit quality (Almeida et al, 2019;Peres et al, 2020).…”

Section: Resultsmentioning

confidence: 99%

“…2017) evaluated the response of tomato plants to applications of different soil fertilizers and found that the use of mineral fertilizer resulted in the largest FTD, and the use of organic fertilizer resulted in the largest FLD. Thus, the presence of organic matter with mineral nutrients in organomineral fertilizers promotes the absorption and helps in the transport of photoassimilates produced by the plant itself (Almeida et al, 2019). The slow release of nutrients occurs in organominerals, which tends to persist for a longer period in the soil (Aguilar et al, 2019;Souza et al, 2020).…”

Section: Resultsmentioning

confidence: 99%

Physical and physicochemical characteristics of tomato fruits grown under different irrigation water levels and phosphorus sources and rates

2022

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Phosphorus (P) is one of the most limiting nutrients for growth and development of crops, and is important for soil fertility managements, since it affects the quality of fruits. With the hypothesis that different levels of irrigation and phosphorus fertilization interfere in the physical and physicochemical properties of tomatoes, the objective of this experiment was to verify this hypothesis and analyze the behavior of the fruits’ responses. The experiment was conducted in a greenhouse at the Hydraulic and Irrigation Laboratory of the Federal Institute of Education, Science, and Technology of the State of Goiás, in Rio Verde, Goiás, Brazil. A randomized block design was used, with a 4×2×4 split-plot arrangement and three replications, totaling 96 experimental plots. The treatments consisted of four P2O5 rates: 25%, 50%, 100%, and 200% of the recommended rate; two P sources: monoammonium phosphate (MAP) and organo-mineral (OM); and four IWL: 50%, 75%, 100%, and 125% of the field capacity. The fruits were evaluated for longitudinal (FLD) and transversal (FTD) diameters, potential hydrogen (pH), titratable acidity (TA), total soluble solid (TSS) contents, and TSS to TA ratio (TSS/TA). The effect of the interactions between the factors IWL and P rate, IWL and P source, and P rate and source were significant for FLD and FTD, TSS, TA, and TSS/TA. The effects of the interactions between IWL and P rate, and IWL and P source were significant for pH. The MAP source combined with the rate of 25% and IWL of 125% resulted in tomato fruits with larger FLD and FTD. The rate of 25% combined with IWL of 77% and 100% resulted in tomato fruits with higher TSS and pH. The OM source resulted in tomato fruits with higher TA when combined with IWL of 50%, and larger FLD when combined with IWL of 105% and 125%. (This article belongs to the Special Issue: Agricultural Water Management in Arid and Semi-arid Regions)

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“…A maior disponibilidade de Mg e Zn pela formulação com organomineral+K2SO4 na ausência de ácidos húmicos e fúlvicos (Tabela 12), comprova a alta eficiência desses fertilizantes no incremento da matéria orgânica ao solo, no aumento da disponibilidade de fósforo ou equivalência aos minerais que estão disponíveis no mercado com os testados no estudo, KCl e MAP (Tabela 13), e por mais que não foi analisado neste estudo, o nitrogênio disponível é afetado positivamente pela fertilização com organomineral de forma geral, pois a matéria orgânica presente no material, promove redução da atividade de enzimas no solo e reduz a perda de nitrogênio pela dinâmica de comportamento do NH4 + (Almeida et al, 2019).…”

Section: Característicasunclassified

“…Desta maneira, o uso de fertilizante organomineral como fonte de nutrientes e condicionadores do solo, tem sido alvo de estudos sobre alternativas viáveis de adubação das culturas com preservação da qualidade ambiental (Almeida et al,2019).…”

Section: Introductionunclassified

Adubação mineral e organomineral associadas a ácidos orgânicos no cultivo do tomateiro industrial

Oliveira,

Guimarães,

Souza Filho

et al. 2024

Cad. Pedagógico

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O objetivo do trabalho foi avaliar a eficiência da adubação mineral e organomineral, associada à aplicação de ácidos húmico e fúlvico, no cultivo do tomateiro industrial. Os tratamentos consistiram em três tipos de formulações de fertilizantes no transplante: T1 - formulação de fertilizante mineral contendo KCl; T2 – formulação de fertilizante mineral com fosfato monoamônico (MAP); T3 – formulação com fertilizante organomineral contendo sulfato de potássio (K2SO4); e dois manejos de substâncias húmicas no solo (com e sem ácidos húmicos e fúlvicos). Utilizou-se delineamento de blocos ao acaso, em esquema fatorial de 3 x 2, com cinco repetições, totalizando 30 parcelas. Foram avaliados: taxa fotossintética, condutância estomática, taxa respiratória, relação interna e externa de CO2 e transporte de elétrons, como características fisiológicas. Produção, características físico-químicas dos frutos, e teores de nutrientes foliares, como potássio (K), fósforo (P), cálcio (Ca), magnésio (Mg), cobre (Cu), ferro (Fe), zinco (Zn) e manganês (Mn), também foram avaliados. Os dados foram submetidos à análise de variância (ANOVA), pelo teste f de fisher, a 1% e a 5% de probabilidade e as médias com efeito significativo foram comparadas pelo teste Tukey, a 5% de probabilidade. Organomineral + K2SO4 aumentou condutância estomática, taxa respiratória e produção de frutos, semelhante aos minerais KCl e MAP para as características físico-químicas dos frutos. Na folha, o Cu obteve 9,17 mg kg-1 no mineral MAP e, para o Mn, a adição de ácidos orgânicos promoveu redução da média (47,12 mg kg-1). O organomineral aumenta teores de Mg e Zn na ausência de ácidos húmicos e fúlvicos, em relação ao KCl e MAP. Conclui-se que a adubação mineral e organomineral, associada à aplicação de ácidos húmico e fúlvico, é eficiente para o cultivo do tomateiro industrial. KCl e MAP, com ácidos húmicos e fúlvicos, melhora a eficiência da absorção de nutrientes pelas plantas. Na ausência de ácidos húmicos e fúlvicos, a formulação com organomineral+K2SO4 é a melhor alternativa de manejo para a produção do tomateiro industrial, em relação as formulações minerais KCl e MAP. O presente estudo apresenta uma metodologia alternativa sustentável e eficiente de adubação do solo para cultivo do tomateiro.

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Reposição Deficitária De Água E Adubação Com Organomineral No Crescimento E Produção De Tomateiro Industrial

Cited by 4 publications

References 9 publications

Influence of the use of slow-release phosphate fertilizers on the growth and production of chili peppers

Influence of the use of slow-release phosphate fertilizers on the growth and production of chili peppers

Physical and physicochemical characteristics of tomato fruits grown under different irrigation water levels and phosphorus sources and rates

Adubação mineral e organomineral associadas a ácidos orgânicos no cultivo do tomateiro industrial

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