Crescimento, produtividade e nível crítico de fósforo para o quiabeiro em relação à adubação fosfatada

Oliveira, Emídio Cantídio Almeida de; Silva, Gilmara P. da; Oliveira, Ruthanna Isabelle de; Filho, Moacyr Cunha; Lira, M. A.; Freire, Fernando José

doi:10.5039/agraria.v8i4a3150

Cited by 2 publications

(4 citation statements)

References 8 publications

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“…The results are consistent with those obtained by Oliveira et al (2013), who studied the okra cv. Clemson Spineless 80; they observed an increase in fruit diameter with increased phosphorus fertilization.…”

Section: Resultssupporting

confidence: 93%

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Yield and physical-chemical quality of okra fruits irrigated with brackish water and phosphorus fertilization

Cruz Filho,

Sousa,

Costa

et al. 2024

Hortic. Bras.

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Phosphate fertilization can mitigate the deleterious effects of salts in the different stages of okra. The objective was to evaluate the effect of the cyclical use of water of lower and higher ECw at different phenological stages under phosphorus fertilization on productivity and fruit quality of okra. A completely randomized design was used, in a 4 x 3 factorial scheme, with four irrigation strategies of cyclical use with water of 0.3 dS/m (W1) and 2.0 dS/m (W2) applied in different phenological stages (IS1 = W1 throughout the cultivation cycle; IS2 = W2 in the establishment phase, W1 in the vegetative phase and W2 in the reproductive and maturation phase; IS3 = W1 in the establishment phase and W2 in the vegetative, reproductive and maturation phase; and IS4 = W1 in the establishment and vegetative phase, and W2 in the reproductive and maturation phase, with three doses of phosphorus (0, 50 and 100 kg/ha), and four replications. Cyclic water use of 0.3 dS/m in the establishment and vegetative phase and 2.0 dS/m in the reproductive and maturation phase reduced the thickness of the peel, while for the length of the fruit this reduction was evidenced with the use of water 0.3 dS/m throughout the cycle. Doses of 50 and 100 kg/ha provided greater performance in fruit quality and productivity of okra.

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Section: Resultssupporting

confidence: 93%

“…The results showed that the dose of 80 kg/ha of phosphorus provided the maximum productivity values, while the treatment without phosphorus fertilization showed minimum productivity values. Oliveira et al (2013), working with the Clemson Spineless 80 cv., also found positive effects of P on increasing okra yield.…”

Section: Resultsmentioning

confidence: 99%

Yield and physical-chemical quality of okra fruits irrigated with brackish water and phosphorus fertilization

Cruz Filho,

Sousa,

Costa

et al. 2024

Hortic. Bras.

View full text Add to dashboard Cite

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“…The maximum length (17.3 cm) and number of fruits (26.6 fruits plant -1 ) were estimated at the dose of 80 kg ha -1 P 2 O 5 . The increase in the number of fruits per plant as a function of the increase in the P dose has also been observed by Oliveira et al (2007), Firoz (2009), Oliveira et al (2013) and Uddin et al (2014). Regarding the absence of phosphate mineral fertilizer at planting, there were increases of 4.8 and 37.1% in length and number of fruits, respectively, at the optimal dose of P.…”

Section: Resultssupporting

confidence: 67%

“…For example, Matos et al (2020) evaluated okra yield as a function of cattle manure doses. For the conditions of the Northeast, there are studies evaluating phosphate fertilization (OLIVEIRA et al, 2013;SANTOS et al, 2019), nitrogen and potassium fertilization (SANTOS et al, 2019), and organomineral fertilization (OLIVEIRA et al, 2014;SANTOS et al, 2019;SALES et al, 2020;SALES et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

Phosphate fertilization and critical leaf phosphorus content for okra

et al. 2023

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The objective of this study was to evaluate the growth and yield of okra as a function of phosphorus (P) doses and to obtain the critical leaf P content, under the edaphoclimatic conditions of Maranhão (MA), Brazil. The field experiment was carried out from February 15, 2017, to May 9, 2017, in São Luís, MA. The experimental design was randomized blocks, with four replications. The treatments were doses of 0, 80, 160, 240 and 320 kg ha-1 of P2O5, in the form of triple superphosphate, at planting, plus 10 t ha-1 of solid cattle manure. The increase of the P dose increased plant height, leaf dry mass and stem dry mass. With phosphorus supply, flowering occurred earlier than in plants without fertilization. Considering soils with low P content (P(resin) = 11 to 25 mg dm-3) and the minimum recommended organic fertilization for the okra crop of 10 t ha-1 of solid cattle manure, the maximum number of fruits, length of fruit and yield (9960.36 kg ha-1) were obtained with the fertilization of 80 kg ha-1 of P2O5, for the edaphoclimatic conditions of MA, Brazil. The critical leaf P content in okra is 3.4 g kg-1.

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Crescimento, produtividade e nível crítico de fósforo para o quiabeiro em relação à adubação fosfatada

Cited by 2 publications

References 8 publications

Yield and physical-chemical quality of okra fruits irrigated with brackish water and phosphorus fertilization

Yield and physical-chemical quality of okra fruits irrigated with brackish water and phosphorus fertilization

Phosphate fertilization and critical leaf phosphorus content for okra

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