Produtividade e formato de raízes tuberosas de batata-doce em função do número de gemas enterradas

Rós, Amarílis Beraldo

doi:10.15361/1984-5529.2017v45n3p253-256

Cited by 6 publications

(13 citation statements)

References 3 publications

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“…The chemical and physical characteristics of the soil in the 0 to 20 cm layer in pre-installation of the experiment were: pH (CaCl 2 ) = 4; Organic matter (calorimetry) = 2 dag kg -1 ; P (Mehlich-1) = 6 mg dm -3 ; K (Mehlich -1 ) = 20 mg dm -3 ; Ca (KCl) = 0.5 cmol c dm-³; Mg (KCl) = 0.3 cmol c dm-³; Al (KCl) = 1.1 cmol c dm -³; H + Al (SMP) = 6.4; Sum of bases = 0.85 cmol c dm -³; Effective cation exchange capacity = 1.95 cmol c dm -³; Cation exchange capacity at pH 7 = 7.25 cmol c dm -³; Aluminium saturation = 56.37%; Base saturation percentage = 11.74%; sand = 10.7%; silt = 18%; clay = 71.3, configuring a very clayey texture. The area was prepared with subsoiler, 35 cm high windrows were made (Rós, 2017).…”

Section: Experiments Locationmentioning

confidence: 99%

“…The spacing adopted was 0.3 m between plants; 0.9 m between windrows (Rós, 2017); 2.7 m between plots; and 2.5 m between blocks. The total area of the plot was 20.79 m 2 (6.3 m × 3.3 m), the block was 50.49 m 2 (15.3 m × 3.3 m), the experiment was 316.71 m 2 (20.7 m × 15.3 m).…”

Section: Implementation Of the Experimentsmentioning

confidence: 99%

“…The following parameters were evaluated: total productivity (TP) and commercial productivity (CP) in t ha -1 , followed by economic analysis of fertilization; number of total tuberous roots (NTR) and number of commercial tuberous roots (NCR) per plant; harvest index (HI) in percentage; of each tuberous root, the individual fresh mass (IFM) was expressed in g, length (L) and diameter (D) in cm. Tuberous roots were considered to have fresh mass equal to or greater than 40g, and commercial roots were those with fresh mass between 80 and 800 g (Rós, 2017).…”

Section: Evaluated Parametersmentioning

confidence: 99%

“…The harvest index was obtained by the relation between the dry mass of the tuberous roots and the total dry mass of an entire plant per subplot, with a value expressed as a percentage. To quantify the biomass, samples of approximately 100 g of branches and tuberous roots were obtained, which were initially weighed and sanitized for drying in an oven with air circulation, at a temperature of 65 °C until constant weight, approximately 72 hours (Rós, 2017;Santos Neto, T. O. Silva, Blank, J. O. Silva, & Araújo Filho, 2017).…”

Section: Evaluated Parametersmentioning

confidence: 99%

“…Sweet potatoes are commercialized by weight, thus, the parameter of economic importance is commercial productivity, the other parameters being only for characterization. The economic implication of the individual fresh root mass is implicit in commercial productivity, as it considers only those that are accepted by the consumer market, with the individual fresh mass of the tuberous root between 80g and 800g (Rós, 2017). Since the regression analysis expresses average values, boxplots were elaborated to better express the diversity of the IFM (Figure 3), as well as the length and diameter of each root ( Figures 4A and 4B).…”

Section: Figurementioning

confidence: 99%

See 4 more Smart Citations

Chicken Manure: An Alternative in Increasing Production of Sweet Potato (Ipomoea batatas)

Ferreira¹,

Brunner²,

Lobato³

et al. 2020

JAS

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Chicken manure is accessible to family farmers, is produced in large volumes, and has a low cost. Therefore, it can be an alternative to increase the productivity of sweet potatoes (Ipomoea batatas), which is a culture of socioeconomic importance. The objective of the study was to evaluate the productivity of sweet potatoes under different doses of chicken manure, with and without liming, comparing to the use of chemical fertilizer NPK, in very clayey soil, from the perspective of economic efficiency. The experiment was conducted in the field from September 2019 to March 2020 in Manaus, Amazonas, Brazil. The experimental design was in randomized blocks with four replications, in a split-plot scheme 2 × 5 + 1 (presence or absence of liming; five doses of chicken manure; and NPK, respectively. The evaluated parameters were: total and commercial productivity; number of total and commercial tuberous roots; harvest index; individual fresh mass, length, and diameter of tuberous roots. The effect of chicken manure was not influenced by the liming and there are no differences in agronomic values related to NPK. The dose of chicken manure that results in maximum production of the queen sweet potato variety is approximately 13 t ha-1, producing 25.2 t ha-1, while the resulting dose in maximum profit is approximately 12 t ha-1 with a production of the 25.1 t ha-1. The selling production directly to the final consumer increased profit by approximately 57.3%. Purchasing the input directly from the manufacturer reduced costs by approximately 74.5%. The use of chicken manure has a greater economic advantage compared to NPK in very clayey soil.

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Section: Experiments Locationmentioning

confidence: 99%

Section: Implementation Of the Experimentsmentioning

confidence: 99%

Section: Evaluated Parametersmentioning

confidence: 99%

Section: Evaluated Parametersmentioning

confidence: 99%

Section: Figurementioning

confidence: 99%

See 3 more Smart Citations

Chicken Manure: An Alternative in Increasing Production of Sweet Potato (Ipomoea batatas)

Ferreira¹,

Brunner²,

Lobato³

et al. 2020

JAS

View full text Add to dashboard Cite

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Produtividade de batata-doce em função de diferentes materiais de plantio e espaçamentos entre plantas

Rós¹,

Narita²,

Navarro³

et al. 2021

Científica

Self Cite

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A implantação da cultura da batata-doce ocorre por meio do uso de segmentos do caule (ramas). Quando há pouco material vegetativo, podem-se cultivar plantas para produzir as ramas necessárias. Como essa produção representa custo, é importante verificar se as plantas oriundas de miniestacas enraizadas produzem raízes comerciais. Assim, o trabalho teve por objetivo comparar as produtividades e formatos de raízes tuberosas de plantas oriundas de miniestacas enraizadas (mudas de bandeja) e de ramas não enraizadas em função do espaçamento entre plantas na linha (0,2; 0,3 e 0,4 m). A utilização de ramas promoveu maiores produtividades total e comercial e número de raízes que a utilização de miniestacas, independentemente do espaçamento. As plantas oriundas de miniestacas cultivadas nos espaçamentos 0,2 e 0,3 m apresentaram semelhantes produtividades total e comercial (médias de 18 e 14 t ha -1 , respectivamente), mas valores maiores em relação ao espaçamento 0,4 m. As produtividades total (30 t ha -1 ) e comercial (22,5 ha -1 ) de plantas oriundas de ramas não diferiram entre os espaçamentos. O material de plantio utilizado não alterou o formato das raízes tuberosas, mas as plantas oriundas de miniestacas apresentaram raízes tuberosas com maior massa fresca. Logo, áreas cultivadas com plantas oriundas de miniestacas apresentam produções comerciais de raízes tuberosas, sendo mais indicado o espaçamento de 0,3 m entre plantas.

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Relationship between bud number in seed branches and yield aspects of sweet potato

et al. 2021

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Planting sweet potato branches with the appropriate bud number and disposition, below and above ground, can favor vegetative growth and yield that better fit the marketable standards. This study aimed to explore the influence of the number of buds and their distribution ratio, above and below ground level, on the agronomic and marketable components of sweet potato tuberous roots. The experiment was carried out in a randomized complete block design with three replications. The treatments were arranged in a factorial scheme (3 x 5), with 2, 4, and 8 above-ground buds combined with 2, 4, 6, 8, and 10 below-ground buds. Branches from the UZBD 06 accession (Canadense standard) were used. Vegetative, productive, and marketable traits of roots were evaluated. The use of branches with a greater number of buds above and below ground increased shoot dry biomass. Planting seed branches with 8 buds above and 8 buds below ground provided a greater number and production of marketable roots. The use of 10 buried buds increased root number and yield in the 150-450 g marketable classes, which the consumer market values the most.

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Produtividade e formato de raízes tuberosas de batata-doce em função do número de gemas enterradas

Cited by 6 publications

References 3 publications

Chicken Manure: An Alternative in Increasing Production of Sweet Potato (Ipomoea batatas)

Chicken Manure: An Alternative in Increasing Production of Sweet Potato (Ipomoea batatas)

Produtividade de batata-doce em função de diferentes materiais de plantio e espaçamentos entre plantas

Relationship between bud number in seed branches and yield aspects of sweet potato

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