Características de frutos de pimentão cultivado em ambiente protegido sob doses de nitrogênio via fertirrigação

Araújo, Jucilene Silva; Andrade, Alberício Pereira de; Ramalho, Cícera Izabel; Azevedo, Carlos Alberto Vieira de

doi:10.1590/s1415-43662009000200007

Cited by 24 publications

(17 citation statements)

References 7 publications

(5 reference statements)

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“…Still in this context, Araújo et al (2009) evaluated the effect of N fertilization on the bell pepper crop, cv. "All Big", and observed positive response on fruit diameter, although they did not find effect of N on fruit length, which differs from the results obtained in the present study.…”

Section: Resultsmentioning

confidence: 99%

Nitrogen and potassium fertigation in bell pepper cultivated in greenhouse using fertigation managements

Júnior

Medeiros

Oliveira

et al. 2017

Rev. bras. eng. agríc. ambient.

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A B S T R A C TThe objective of the study was to evaluate the effect of different managements of fertigation and NK doses on the production of bell pepper fruit in a protected environment. The experimental design was randomized blocks in 3 x 5 factorial. The treatments were formed by the combination of three managements of fertigation (M 1 -Based on the rate of absorption; M 2 -Monitoring the electrical conductivity of the soil solution; M 3 -Monitoring concentrations of N and K ions in the soil solution), with five doses of NK (0, 50, 100, 150 and 200% of the recommended dose) and four replicates. Six samples were collected and the following variables were evaluated: number, length and diameter of fruit, pulp thickness and fruit production. Except for diameter, all variables were affected by the interaction between the studied factors. The fertigation management by monitoring and controlling the ionic concentration of the soil solution is more efficient in the production of bell pepper. The fertigation management can be performed more efficiently from the managements M2 or M3, with NK doses of 144 and 165%, respectively, of the recommended concentration for the hydroponic cultivation of bell pepper.Fertirrigação nitrogenada e potássica no cultivo do pimentão em ambiente protegido utilizando manejos de fertirrigação R E S U M O Objetivou-se, com o trabalho, avaliar o efeito de diferentes manejos de fertirrigação e níveis de NK na produção de frutos de pimentão em ambiente protegido. O delineamento experimental utilizado foi em blocos casualizados em arranjo fatorial 3 x 5 em que os tratamentos foram formados pela combinação de três manejos de fertirrigação (M 1 -Fertirrigação a partir da marcha de absorção; M 2 -Monitoramento da condutividade elétrica da solução do solo; M 3 -Monitoramento da concentração de íons de N e K na solução do solo), com cinco níveis de NK (0, 50, 100, 150 e 200% da dose recomendada) e quatro repetições. Foram realizadas seis colheitas e avaliadas as seguintes variáveis: número, comprimento e diâmetro de frutos, espessura de polpa e produção de frutos. Com exceção do diâmetro, todas as variáveis foram afetadas pela interação entre os fatores estudados. O manejo da fertirrigação através do monitoramento e controle da concentração iônica da solução do solo proporcionou maior produção de frutos. A maior produtividade de frutos de pimentão pode ser obtida utilizandose fertirrigação com os manejos M2 ou M3, em níveis de NK de 144 e 165%, respectivamente, da concentração recomendada para o cultivo de pimentão hidropônico.

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Section: Resultsmentioning

confidence: 99%

Nitrogen and potassium fertigation in bell pepper cultivated in greenhouse using fertigation managements

Júnior

Medeiros

Oliveira

et al. 2017

Rev. bras. eng. agríc. ambient.

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“…The application of high quantities of nitrogen, without taking into account between-farm differences in soil properties and the period of greater nitrogen demand, leads to decrease of nitrogen use efficiency (NUE). The tomato crop generally does not exceed 50% in NUE and generates a substantial increase of mineral nitrogen remaining in the soil that could be subject to leaching [22].…”

Section: Introductionmentioning

confidence: 99%

Water Footprint of Industrial Tomato Cultivations in the Pinios River Basin: Soil Properties Interactions

Evangelou

Tsadilas

Tserlikakis

et al. 2016

Water

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Industrial tomatoes are cultivated in about 4000 ha of the Pinios river basin (central Greece), providing significant income to the farmers. In this study, the water footprint (WF) of industrial tomatoes between planting and harvest was estimated in 24 different farms for three consecutive years. The selected farms were representative of the main agro-climatic zones and soil textural classes within the river basin. Green, blue and grey WF calculations were based on datasets of the experimental plots for each farm, including irrigation water volume, meteorological, soil, and crop yield data. The results showed that the WF of tomatoes ranged from 37 to 131 m 3 water/ton tomatoes with an average of 61 m 3 /ton. The WF variation depended mainly on crop yield, local agro-climatic and soil conditions. The green, blue, and grey WF components averaged 13, 27 and 21 m 3 /ton, respectively. The results reveal the importance of WF in understanding how tomato production relates to the sustainable use of freshwater and pollution at local level.

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“…Vegetable production is an advantageous agricultural activity, when practiced under adequate environmental conditions and close to marketing centers. Hence, it is essential to seek new alternatives of cultivation and technologies that contribute to the increase of yield (Araújo et al, 2009).…”

Section: Introductionmentioning

confidence: 99%

Production of lettuce genotypes in hydroponic system using different organo-mineral nutrient solutions

Filho¹,

Azevedo²,

Azevedo³

et al. 2018

Aust J Crop Sci

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Mineral solutions are widely used in hydroponic cultivation but little is known about the use of organo-mineral solutions. With this focus, the present study aimed to evaluate the production of three green-leaf lettuce genotypes (Thaís, Vanda and Verônica) in eight nutrient solutions, in NFT hydroponic system, set up in gutters. Four mineral solutions were used in this experiment, referred to as the respective names of the authors (Bernardes, Furlani, Castellane and Araújo, and Ueda). Moreover, four organo-mineral solutions (using biofertilizers in their formulation) were applied, totally eight nutrient solutions. The experiment was carried out in randomized blocks in split plots with three replicates. The main plots consisted of eight nutrient solutions and three lettuce cultivars were assigned in subplots (including six plants per subplot). Lettuce production was evaluated 25 days after transplanting, through the determination of shoot fresh phytomass (SFP), root fresh phytomass (RFP), shoot dry phytomass (SDP) and root dry phytomass (RDP). Production variables were not influenced by the interactive effect of the studied factors. Individually, the nutrient solutions influenced the production parameters and there was variation among the lettuce cultivars only for root fresh phytomass. Higher commercial production of lettuce was obtained with the mineral solutions of Bernardes, Furlani, and Castellane and Araújo.

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Características de frutos de pimentão cultivado em ambiente protegido sob doses de nitrogênio via fertirrigação

Cited by 24 publications

References 7 publications

Nitrogen and potassium fertigation in bell pepper cultivated in greenhouse using fertigation managements

Nitrogen and potassium fertigation in bell pepper cultivated in greenhouse using fertigation managements

Water Footprint of Industrial Tomato Cultivations in the Pinios River Basin: Soil Properties Interactions

Production of lettuce genotypes in hydroponic system using different organo-mineral nutrient solutions

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