CULTIVO DE TOMATE (Solanum lycopersicum) HIDROPÔNICO SOB DIFERENTES NÍVEIS DE FÓSFORO E POTÁSSIO EM SOLUÇÃO NUTRITIVA

Melo, Nilvan Carvalho; Souza, Luma Castro de; Silva, Vicente Filho Alves; Gomes, Rafaelle Fazzi; Neto, Cândido Ferreira de Oliveira; Costa, Deborah Luciany Pires

doi:10.18542/ragros.v6i1.1845

Cited by 6 publications

(5 citation statements)

References 3 publications

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“…This aspect is particularly relevant to horticulture because most producers have a small growing area in which they seek to obtain the maximum possible income (RINALDI et al, 2008). Soilless crops allow production in a small area and can maintain product quality at satisfactory levels, as well as serving as a strategy for soil conservation and preservation of water sources (OLIVEIRA et al, 2014, OLIVEIRA et al, 2016.…”

Section: Introductionmentioning

confidence: 99%

“…The formulations of the nutrient solutions used in the hydroponic production of plants are of great interest. Several formulations of nutrient solution are proposed in the specialized literature, however, it is necessary to determine the effects of solution concentration and nutrient ratios on plant growth, plant development, production, and fruit quality (FERNANDES; MARTINEZ; OLIVEIRA, 2002;MELO et al, 2014;DINIZ et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

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Yield and quality of cherry tomato fruits in hydroponic cultivation

Dias

Diniz²,

Morais

et al. 2019

Biosci. J.

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Because of the food and industrial importance of tomato, it holds great significance, and is one of the most produced species using the hydroponic cultivation systems. The objective of this study was to evaluate the effects of different concentrations of nutrient solution on the production and quality of cherry tomatoes (Lycopersicon esculentum 'Samambaia') grown in a hydroponic system in protected conditions. The experiment was conducted in pots filled with coconut fiber substrate using a randomized complete block design with four replications and six plants per plot. Five concentrations of nutrients were evaluated (50, 75, 100, 125, and 150% of the standard nutrient solution); the solutions produced the following electrical conductivities: 1.8, 2.0, 2.6, 3.4, and 3.9 dS m -1 , respectively. At 90 days after transplanting, the tomato fruits were harvested, at which time the production variables and post-harvest quality of mature fruits were determined. The best production and post-harvest quality indexes of cherry tomatoes ('Samambaia') were found when using 111% of the standard nutrient solution, corresponding to the concentrations of 9. 44, 2.44, 2.22, 6.44, 4.11, 2.44, and 2.78 mmolc L -1 , of NO3 -, NH4 + , P, K, Ca, Mg, and S, respectively; and 66.6, 55.5, 14.4, 1.89, 0.56, and 0.44 mmolc L -1 , of Fe, B, Mn, Zn, Cu, and Mo, respectively. Nutrient solutions with electrical conductivity above 2.89 dS m -1 severely reduced the fruit yield of cherry tomatoes.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Yield and quality of cherry tomato fruits in hydroponic cultivation

Dias

Diniz²,

Morais

et al. 2019

Biosci. J.

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“…Studies indicate satisfactory results in the cultivation of plants in the DFT system, for tomato crops (Melo et al, 2014), of the coriander (Silva et al, 2016) and lettuce (Viana et al, 2018). However, some authors such as Bione et al (2014) and Maia et al (2017) observed that there is no compendium of consolidated information on the hydroponic cultivation of this culture under saline stress for basil.…”

Section: Introductionmentioning

confidence: 99%

Growth, water consumption and basil production in the hydroponic system under salinity

et al. 2019

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In irrigated crops, salinity is the main cause of the reduction of growth and productivity, with damage of the variability according to the sensitivity of the crop. The objective of this work was to evaluate the growth, water consumption and production of basil cv. Toscano Folha de Alface under saline stress, in different frequencies of recirculation of the nutritive solution and hydroponic systems. The experimental design was a completely randomized design, in a factorial scheme 3 x 2 + 1, where the first factor represents the concentrations of NaCl (0, 40 and 80 mmol L-1) and the second factor the recirculation frequencies of the nutrient solution (4 or 6 hours) in a deep flow hydroponic system (DFT), and an additional treatment with nutrient solution in hydroponic laminar flow system (NFT). The water consumption, growth variables and phytomass production and growth rates were evaluated. Reducing the frequency of recirculation of the nutrient solution to six hours does not cause significant reductions in water consumption, growth, phytomass production and absolute growth rate of basil. The water consumption, growth, phytomass production and the absolute growth rate of basil reduced with the use of saline nutrient solution, 40 and 80 mmol L-1 NaCl. The choice of the DFT or NFT hydroponic system does not cause significant changes in the variables analyzed in basil, under the conditions studied.

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“…It is worth mentioning that the responses varied in accordance with the soil type and soil P availability. The application of phosphorus showed a significantly positive effect in tomato yield (Melo et al, 2014), but the effects of P on seedling production are still unknown. Nishimoto et al (1977) observed that P contents in tomato leaves ranged from 3.0 to 5.0 g/kg, when reaching their maximum yield of 95%.…”

Section: Introductionmentioning

confidence: 99%

Effect of phosphorus (P) doses on tomato seedlings production in poor nutrients substrates and its importance on fruit yield

Martins¹,

Candian²,

Lima³

et al. 2017

Aust J Crop Sci

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The effect of P on different plants and several growth stages are well known to scientists, but there is little information on the effect of P after transplanting the seedling until harvesting. The current study aimed to evaluate the effect of P on tomato seedling and fruit production of Paronset hybrid. Therefore, six treatments (0, 15, 30, 45, 60 and 75mg L -1 P) were evaluated in a randomized complete block design with four replications. Monoammonium phosphate (MAP) was used as P source, in addition to coconut fiber substrate. A linear increase was obtained for leaf area, seedling height, shoot and root fresh matter at 75mg P L -1 . However, yield and fruits characteristics were not affected by increasing P doses on seedlings.Keywords: coconut husk fiber, fertigation, phosphate fertilizer, Solanum lycopersicum, substrate. Abbreviations: AFW_ average fruit weight; CTC_ cation exchange capacity; CV_ coefficient of variation; DAT_ days after transplanting; FD_ diameter of fruit; FH_ height of fruit; MAP_ monoammonium phosphate; M.O_ organic matter; P_ phosphorus; PP_ production per plant; SB_ sum of bases; TNFP_ total number of fruits per plant; V_ base saturation.

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CULTIVO DE TOMATE (Solanum lycopersicum) HIDROPÔNICO SOB DIFERENTES NÍVEIS DE FÓSFORO E POTÁSSIO EM SOLUÇÃO NUTRITIVA

Cited by 6 publications

References 3 publications

Yield and quality of cherry tomato fruits in hydroponic cultivation

Yield and quality of cherry tomato fruits in hydroponic cultivation

Growth, water consumption and basil production in the hydroponic system under salinity

Effect of phosphorus (P) doses on tomato seedlings production in poor nutrients substrates and its importance on fruit yield

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