Produtividade e perdas de amendoim em cinco diferentes datas de arranquio

Santos, E. P. dos; Silva, Rouverson Pereira da; Bertonha, Rafael Scabello; Noronha, Rafael Henrique de Freitas; Zerbato, Cristiano

doi:10.1590/s1806-66902013000400005

Cited by 11 publications

(10 citation statements)

References 10 publications

(9 reference statements)

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“…Regarding the average productivity, it can be considered as good, 5070, 6143, 5842, and 6294 kg ha -1 for treatment S/S, S/C, C/S and C/C, respectively at 135 days after sowing. Being that values found corroborate those observed by Santos et al (2013), 6041.5 to 7020.9 kg ha -1 using the cultivar runner, digged between 120 and 140 days after sowing. Still, Ortiz et al (2013) The lowest yield was found in treatments S/S and C/S can be attributed to the occurrence of weeds, even making periodic control areas, these interfere in the development of peanut plants, with accentuated reduction in these two treatments.…”

Section: Variable S/s S/c C/s C/csupporting

confidence: 88%

Quality of mechanized peanut digging in function of the auto guidance

Santos¹,

Kazama²,

Ormond³

et al. 2016

Afr. J. Agric. Res.

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Within the context of precision agriculture, the use of automatic guidance is without a doubt one of the most popular tools among farmers, however, are few producers of peanuts using this technology, the benefits from this technology can bring significant gains for culture even more when thinking about reducing the indices of losses in the digging. Thus, it objective was to evaluate the variability of quantitative losses of peanut mechanized digging with use the autopilot, using the Statistical Process Control. The treatments consisted of absence of autopilot use in sowing and digging, pilot's absence at sowing and presence in the digging, pilot use at sowing and absence in the digging and the pilot use in sowing and digging. In each treatment, 15 points of each variable was collected from distance of 50 m apart. Visible, invisible and total losses in the digging and parallelism were evaluated. The reduction of the plant material on the vibratory mat affected the levels of visible losses. Total losses are strongly correlated with the invisible losses. The use of the autopilot allows the operator to pay more attention to the digging operation improving the quality of the operation. The average error found between passes of the mechanized set using autopilot was 0.35 m. The variability of the losses as well as of parallelism was reduced when using the autopilot in two operations, providing a higher quality process.

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Section: Variable S/s S/c C/s C/csupporting

confidence: 88%

Quality of mechanized peanut digging in function of the auto guidance

Santos¹,

Kazama²,

Ormond³

et al. 2016

Afr. J. Agric. Res.

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show abstract

“…Constata-se, ainda, que o teor de água das vagens no momento do arranquio não foi alterado nos períodos de avaliação, encontrando-se próxi-mos a 45%, valor este observado também em diversos trabalhos enfocando o arranquio mecanizado de amendoim (SANTOS et al, 2013).…”

Section: Resultsunclassified

Perdas quantitativas de amendoim nos períodos do dia em sistemas mecanizados de colheita

Cavichioli¹,

Zerbato²,

Bertonha³

et al. 2014

Científica

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ResumoA operação de arranquio mecanizado de amendoim é considerada crítica em função de fatores relacionados à cultura e fatores intrínsecos às máquinas utilizadas, que podem acarretar elevados níveis de perdas. As perdas acontecem no arranquio e no recolhimento do amendoim. Objetivou-se quantificar as perdas em dois períodos de realização da colheita (manhã e tarde), para conjuntos mecanizados. A colheita foi realizada na safra de 2009/2010, em área da fazenda Contendas, localizada no município de Taquaritinga-SP. Foram avaliadas as perdas visíveis, invisíveis e totais no arranquio, o teor de água das vagens no momento do arranquio e do recolhimento, bem como as perdas visíveis totais no recolhimento. Os conjuntos mecanizados utilizados no arranquio e os períodos de colheita não interferiram nas perdas, e o teor de água das vagens não apresentou diferença para o arranquio realizado pela manhã e à tarde. Não foram observadas diferenças entre os tratamentos no recolhimento.Palavras-chave adicionais: arranquio de amendoim; mecanização agrícola; recolhimento de amendoim. AbstractThe mechanical uprooting operation by which peanuts are harvested is considered a critical one due to factors related to the crop as well as to factors related to the used equipments which may result in heavy pod losses. These losses occur both during the plant uprooting and that of the picking up of the plants. The objective of this study was to quantify peanut pod losses during harvesting operation being carried out by mechanical equipments during the morning and the afternoon periods. The experiment took place in the crop year of 2009/2010 in a farm located in the municipality of Taquaritinga, state of São Paulo, Brazil. Visible, invisible and total losses during the uprooting operation, pod water content at the plant uprooting and picking up operations and the total visible losses during plant picking up were evaluated. The equipments used for plant uprooting and the harvesting period did not interfere in the amount of losses. Water content was the same for pods harvested during the morning and the afternoon periods. Plant picking up procedures had no significant effects on pod losses, either.

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“…Além da baixa qualidade sanitária, outros fatores podem afetar a qualidade dos lotes, como a falta de uniformidade na maturação das sementes (Carley et al, 2008;Branch et al, 2010), a ocorrência de chuvas durante a "cura" (Santos et al, 2013a), os danos oriundos de ataque de insetos (Santos et al, 2013b), os problemas técnicos na colheita, secagem e beneficiamento (Lopes et al, 2011) e a falta de monitoramento da qualidade durante as etapas de produção (Morton et al, 2008). A identificação de falhas nestas etapas, que podem causar redução do desempenho das sementes, é de primordial importância para o sucesso da produção de sementes.…”

Section: Introductionunclassified

Qualidade fisiológica e sanitária de sementes de amendoim durante o processo de produção

Barbosa

Vieira

Martins

et al. 2014

Pesq. agropec. bras.

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Physiological and health quality of peanut seeds during the production processAbstract -The objective of this work was to evaluate the effect of production process stages on the physiological and health quality of peanut seeds. A completely randomized design with 12 treatments and four replicates was used. Treatments consisted of plant uprooting, plant gathering, transportation, drying, storage (two, four, and six months), and the following processing steps: mechanical threshing, classification by size, separation by density and color, and chemical treatment. Water content, health quality, germination, and vigor of seeds were evaluated after each treatment. Aspergillus spp. and Penicillium sp. were found in the seeds. In the first year, after mechanical threshing, seeds showed a reduced performance. In the production process, storage promoted the infection of 100% of the seeds by Aspergillus spp. The chemical treatment was effective in restoring seed health quality. Mechanical threshing steps and storage reduce the seed quality of peanut.

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Produtividade e perdas de amendoim em cinco diferentes datas de arranquio

Cited by 11 publications

References 10 publications

Quality of mechanized peanut digging in function of the auto guidance

Quality of mechanized peanut digging in function of the auto guidance

Perdas quantitativas de amendoim nos períodos do dia em sistemas mecanizados de colheita

Qualidade fisiológica e sanitária de sementes de amendoim durante o processo de produção

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