Soil fertility, growth and fruit quality of papaya Tainung, under fertirrigation with potassium

Anjos, David Correia dos; Hernández, Fernando Felipe Ferreyra; Costa, José Maria Correia da; Caballero, Segundo Sacramento Urquiaga; Moreira, Vanessa Ohana Gomes

doi:10.5935/1806-6690.20150065

Cited by 7 publications

(3 citation statements)

References 9 publications

(12 reference statements)

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“…In experiment with 'Formosa' papaya, cv. 'Tainung Nº 1' , conducted in the municipality of Russas-CE in a 'Neossolo Quartzarênico' , Anjos et al (2015) observed a linear behavior in soil EC with the increment in the KCl doses applied via fertigation, evidencing the saline effect of the fertilizer.…”

Section: Resultsmentioning

confidence: 99%

Soil salinity and yield of mango fertigated with potassium sources

Carneiro

Lima

Cavalcante

et al. 2017

Rev. bras. eng. agríc. ambient.

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Irrigated fruit crops have an important role in the economic and social aspects in the region of the Sub-middle São Francisco River Valley. Thus, the aim of this study was to evaluate soil salinity and the productive aspects of the mango crop, cv. Tommy Atkins, fertigated with doses of potassium chloride (KCl) and potassium sulfate (K2SO4) during two crop cycles (from January to March 2014 and from January to March 2015). The experiment was carried out in a strip-split-plot design and five potassium doses (50, 75, 100, 125 and 150% of the recommended dose) as plots and two potassium sources (KCl and K2SO4) as subplots, with four replicates. Soil electrical conductivity (EC), exchangeable sodium (Na+) and potassium (K+) contents and pH were evaluated. In addition, the number of commercial fruits and yield were determined. The fertilization with KCl resulted in higher soil EC compared with K2SO4 fertigation. Soil Na+ and K+ contents increased with increasing doses of fertilizers. K2SO4 was more efficient for the production per plant and yield than KCl. Thus, under the conditions of this study, the K2SO4 dose of 174.24 g plant-1 (24.89 kg ha-1 or 96.8% of recommendation, spacing of 10 x 7 m) was recommended for a yield of 23.1 t ha-1 of mango fruits, cv. Tommy Atkins.

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Section: Resultsmentioning

confidence: 99%

Soil salinity and yield of mango fertigated with potassium sources

Carneiro

Lima

Cavalcante

et al. 2017

Rev. bras. eng. agríc. ambient.

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“…However, the maximum EC was obtained in treatment K2M2, which is characterized as the treatment that received the highest amount of K and Mg (potassium chloride and magnesium sulfate). According to Anjos, Hernandez, Costa Caballero and Moreira (2015), EC increases as a result of increasing amounts of KCl, which highlights the saline effect of the fertilizer. This may explain the higher EC values in treatment T3 (K2M2), which received the highest concentration of K. Melo et al (2011) observed that the marketable and total yields of 'Gália' melon were not affected by water salinity up to the levels of 1.48 and 1.46 dS m -1 , respectively.…”

Section: Resultsmentioning

confidence: 99%

Performance of ‘Galia’ melon grown under different soil cation ratios

Paiva

Medeiros

Almeida

et al. 2021

Semina: Ciênc. Agrár.

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The northeast region of Brazil stands out in the production and export of melon. In this region, where this crop is mostly grown, part of the soil is of limestone origin, as is the irrigation water used. Over successive cultivations, these conditions can lead to soil alkalinization due to the accumulation of basic cations of the exchange complex, such as Ca, Mg, K and Na, in soils that are already rich in bases, thus influencing nutrient availability and, consequently, crop yield. On this basis, this study was developed to identify the cation ratios (K:Mg:Ca) of the soil that best correlate with attributes indicative of ‘Gália’ melon production. Two experiments were carried out in two consecutive years (2017 and 2018), in a randomized-block design with five treatments and five replicates. Treatments consisted of the following cation ratios (K:Mg:Ca) for experiment I, whose soil had a K content of 0.40 cmolc dm-3: T1 (1:3:34), T2 (1:3:21), T3 (1:3:9), T4 (1:0.8:9) and T5 (1:11:34); and experiment II, where the soil had 0.56 cmolc dm-3 of K: T1 (1:1.6:29.8), T2 (1:1.4:13.3), T3 (1:1.4:8.5), T4 (1:0.5:8.5) and T5 (1:4.8:29.8). The following traits were evaluated: chemical analyses of the soil during the flowering phase and at the end of the cycle, nutrient concentration in the diagnostic leaf during the fruiting phase, total yield, marketable yield, average total weight, average marketable weight, total number of fruits and number of marketable fruits per plant. The cation ratios influenced the average total and marketable fruit weights only in experiment I, but not yield. Therefore, when associated with irrigation water from the Açu sandstone aquifer and fertigation, the high absolute K and medium to high Mg contents are sufficient to meet the K and Mg nutrient requirements, dispensing with correction of the cation ratio.

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“…Em 2016, o país produziu 1.424.650 toneladas de mamão, destacando-se como segundo maior produtor do fruto de cultivares papaia e formosa (FAO, 2016). Research, Society andDevelopment, v. 9, n. 10, e6359109129, 2020 (CC BY 4.0) | ISSN 2525-3409 | DOI: http://dx.doi.org/10.33448/rsd-v9i10.9129 4 Cultivado em áreas tropicais e subtropicais com clima quente, o mamoeiro se disseminou por quase todo o território nacional (Anjos, Hernandez, da Costa, Caballero, & Moreira, 2015). As regiões Sudeste e Nordeste são as mais expressivas no cultivo da cultura, sendo que juntas produzem 95,5% da produção nacional, tendo como principais produtores os estados da Bahia e do Espírito Santo (IBGE, 2015).…”

Section: Introductionunclassified

Substratos orgânicos e pulverização com biofertilizante na produção de mudas de mamoeiro

Barros

Vanolli

Vicensi

et al. 2020

RSD

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A qualidade das mudas usadas no plantio é fundamental para o sucesso de um pomar de mamoeiro. Este estudo objetivou avaliar o efeito de diferentes substratos com compostos de adubos verdes e da adubação foliar com biofertilizante sobre o desenvolvimento e acúmulo de nutrientes em mudas de mamoeiro formosa e mamoeiro papaia. Os substratos usados na produção das mudas foram: solo (S); solo + esterco (S+E); solo + composto de esterco e aveia preta (S+CAP); solo + composto de esterco e azevém (S+CAZ); solo + composto de esterco e nabo forrageiro (S+CNF); e solo + composto de esterco e ervilhaca (S+CEV). Os substratos contendo esterco de curral ou composto de adubos verdes resultaram em melhor desenvolvimento das mudas de mamoeiro. Os substratos contendo S+E, S+CAP e S+CEV melhoraram o desenvolvimento das mudas de mamoeiro papaia, sendo que os acúmulos de N e P foram maiores com o substrato S+E e o acúmulo de Ca foi maior com o substrato S+CEV. Nas mudas de mamoeiro formosa, o substrato S+CEV aumentou os acúmulos de P, Ca e Mg na massa seca. A aplicação foliar do biofertilizante nas mudas de mamoeiro formosa aumentou a extensão radicular, o volume de raízes, e o acúmulo de P, mas, diminuiu os acúmulos de N e Ca, enquanto que a produção de matéria seca não foi afetada. Entretanto, nas mudas de mamoeiro papaia, o biofertilizante aumentou o volume de raízes, mas, reduziu a massa seca de parte aérea e total e os acúmulos de N, P e K.

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Soil fertility, growth and fruit quality of papaya Tainung, under fertirrigation with potassium

Cited by 7 publications

References 9 publications

Soil salinity and yield of mango fertigated with potassium sources

Soil salinity and yield of mango fertigated with potassium sources

Performance of ‘Galia’ melon grown under different soil cation ratios

Substratos orgânicos e pulverização com biofertilizante na produção de mudas de mamoeiro

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