Qualidade de frutos do coqueiro-anão verde fertirrigado com nitrogênio e potássio

Silva, Ricardo Alencar da; Cavalcante, Lourival Ferreira; Holanda, José Simplício de; Pereira, Walter Esfrain; Moura, Mácio Farias de; Neto, Miguel Ferreira

doi:10.1590/s0100-29452006000200035

Cited by 11 publications

(16 citation statements)

References 2 publications

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“…Not only are the benefits of prenatal care widely recognized in the literature - - but in low and middle income countries, appropriate prenatal interventions are cost-effective [1–7]. Notwithstanding all the evidence of the benefits of prenatal care, (including reduction of neonatal tetanus, reduction of low birthweight and preterm-delivery, and screening and treatment of infectious diseases), its coverage is still not universal or adequately provided in many low and middle income countries [2, 8–13].…”

Section: Introductionmentioning

confidence: 99%

Family health strategy and equity in prenatal care: a population based cross-sectional study in Minas Gerais, Brazil

Andrade

Noronha

Barbosa

et al. 2017

Int J Equity Health

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BackgroundPrenatal care coverage is still not universal or adequately provided in many low and middle income countries. One of the main barriers regards the presence of socioeconomic inequalities in prenatal care utilization. In Brazil, prenatal care is supplied for the entire population at the community level as part of the Family Health Strategy (FHS), which is the main source of primary care provided by the public health system. Brazil has some of the greatest income inequalities in the world, and little research has been conducted to investigate prenatal care utilization of FHS across socioeconomic groups. This paper addresses this gap investigating the socioeconomic and regional differences in the utilization of prenatal care supplied by the FHS in the state of Minas Gerais, Brazil.MethodsData comes from a probabilistic household survey carried out in 2012 representative of the population living in urban areas in the state of Minas Gerais. The sample size comprises 1,420 women aged between 13 and 45 years old who had completed a pregnancy with a live born in the last five years prior to the survey. The outcome variables are received prenatal care, number of antenatal visits, late prenatal care, antenatal tests, tetanus immunization and low birthweight. A descriptive analysis and logistic models were estimated for the outcome variables.ResultsThe coverage of prenatal care is almost universal in catchment urban areas of FHT of Minas Gerais state including both antenatal visits and diagnostic procedures. Due to this high level of coverage, socioeconomic inequalities were not observed. FHS supplied care for around 80% of the women without private insurance and 90% for women belonging to lower socioeconomic classes. Women belonging to lower socioeconomic classes were at least five times more likely to receive antenatal visits and any of the antenatal tests by the FHS compared to those belonging to the highest classes. Moreover, FHS was effective in reducing low birthweight. Women who had prenatal care through FHS were 40% less likely to have a child with low birthweight.ConclusionThis paper presents strong evidence that FHS promotes equity in antenatal care in Minas Gerais, Brazil.Electronic supplementary materialThe online version of this article (doi:10.1186/s12939-016-0503-9) contains supplementary material, which is available to authorized users.

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Section: Introductionmentioning

confidence: 99%

Family health strategy and equity in prenatal care: a population based cross-sectional study in Minas Gerais, Brazil

Andrade

Noronha

Barbosa

et al. 2017

Int J Equity Health

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“…In plant tissues, organic acids are associated with their K salts buffer system that regulates enzyme activities (Chitarra and Chitarra 2005). Furthermore, whenever there is a high concentration of K in the cell, there is also a need of organic acids to ensure that an ion balance is maintained (Silva et al 2006). Araujo (2011) did not found any significant effect of K topdressing on soluble solids.…”

Section: Resultsmentioning

confidence: 99%

Effect of top-dressed potassium fertilization on the yield and quality of cucumber

Corrêa

Gouvêia

Martins

et al. 2018

Journal of Plant Nutrition

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The current study aimed to evaluate the effect of top-dressed potassium (K) application on the production of hybrid cucumber "Sapphire." The experimental design was a randomized complete block, with five blocks of 0.80 £ 0.40 m 2 each and eight replicate plants per block. The five fertilization rates of K used were 0, 45, 90, 135, and 180 kg K 2 O ha ¡1. Data collection consisted of the estimation of fruit diameter, fruits length, fruit fresh and dry weights, the number of fruits per plant, and the weight of fruits per plant. The number of fruits per hectare and the fruit fresh weight per hectare were calculated. Fruit tissue was analyzed for determination of macronutrient concentrations, pH, titratable acidity, soluble solids, sugar contents, and protein content. The data were statistically analyzed using regression analysis and analysis of variance (ANOVA). There was a significant effect of the fertilization rate of K on fruit diameter, fruit fresh and dry weights, macronutrients concentrations in fruits, titratable acidity, soluble solids, and reducing sugars. A quadratic equation was adjusted for the number of fruits per plant and per hectare; fruit yield per plant and per hectare, with maximum top-dressing doses, was estimated to be between 60 and 95 kg K 2 O ha ¡1. A linear increase was obtained in the pH. An increase in the K fertilization rate caused a linear decrease in the fruit length.

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“…Através dos resultados da análise de variância (Tabela 2), não se observa efeito significativos para variável número de cachos por planta (NCP), porém foi constatado efeito significativo das doses de N para altura (ALT. ), circunferência do coleto (CC), número de folhas (NF); número de folíolos na folha 3 (NFOL), números de flores femininas (NFF), massa do fruto (MF), circunferências equatorial do fruto (CEF) e polar do fruto (CPF), volume de água no fruto (VA) e sólidos solúveis totais (ºBrix); as doses de K 2 O exerceram uma influencia significativa sobre as variáveis, número de frutos por planta (NFP), massa do fruto (MF), circunferências equatorial do fruto (CEF) e polar do fruto (CPF), volume de água no fruto (VA) e sólidos solúveis totais (ºBrix), estes resultados estão de acordo com os observados por Silva et al (2006), que obteve efeito quadrático dos dois nutrientes para as variáveis (MF, VA e ºBrix). No caso dos sólidos solúveis totais (ºBrix), os nutrientes N e K 2 O influenciaram significativamente (Tabela 2).…”

Section: Resultsunclassified

“…Verifica-se, na figura 3 G1 e G2, que o aumento das doses K 2 O via fertirrigação, resultou no aumento do ºBrix, sendo o maior valor obtido com a maior dose 4750 g por planta por ano (6,05 °Brix), sendo este mesmo valor encontrado por Miranda et al (1999) em coqueiro anão verde do Jiqui. Silva et al (2006) encontraram valores bem próximos aos obtidos neste estudo para o °Brix (5,9). De acordo com estes autores valores próximo de 6,0 °Brix proporciona um sabor mais agradável na água de coco, promovendo assim uma maior aceitação por parte dos consumidores.…”

Section: Resultsunclassified

Crescimento E Produção De Coqueiro Anão Verde Fertirrigado Com Nitrogênio E Potássio

Matías

Aquino

Freitas

2010

RSA

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A deficiência de nitrogênio e potássio na fase inicial do desenvolvimento do coqueiro poderá prejudicar a fisiologia da planta diminuindo a produção. O objetivo deste trabalho foi avaliar a aplicação de nitrogênio e de potássio, via fertirrigação, sobre o desenvolvimento vegetativo, aos três anos, e a produção do coqueiro anão verde, aos quatro anos de idade, cultivado em Neossolo quartzârenico. O trabalho foi realizado em plantação comercial do coqueiro anão verde do Jiqui, no município de Paracuru (CE). O delineamento experimental foi de blocos casualizados, com 10 tratamentos consistindo de cinco doses de nitrogênio e potássio, combinadas, de acordo com modelo da matriz experimental Plan Puebla III. Foram avaliadas a cada três meses as seguintes características: altura da planta, circunferência do coleto, número de folhas, número de folíolos na folha 3, aos três anos de idade e número de cachos por planta (ncp), número de frutos por planta, massa do fruto, circunferências do fruto (equatorial e polar), volume de água do fruto, sólidos solúveis totais, com quatro anos de idade. As doses de N e K aplicadas no solo não afetaram o número de cachos. O aumento do N proporcionou um crescimento linear nas variáveis altura, circunferência do coleto, número de folhes e número de folíolos na folha 3. As maiores doses de N promoveram a diminuição das variáveis de produção com exceção do sólidos solúveis totais. As maiores doses de K2O resultaram em um aumento do número de frutos por planta e sólidos solúveis totais.

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Qualidade de frutos do coqueiro-anão verde fertirrigado com nitrogênio e potássio

Cited by 11 publications

References 2 publications

Family health strategy and equity in prenatal care: a population based cross-sectional study in Minas Gerais, Brazil

Family health strategy and equity in prenatal care: a population based cross-sectional study in Minas Gerais, Brazil

Effect of top-dressed potassium fertilization on the yield and quality of cucumber

Crescimento E Produção De Coqueiro Anão Verde Fertirrigado Com Nitrogênio E Potássio

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