Influence of Nutrient Solution Temperature on Its Oxygen Level and Growth, Yield and Quality of Hydroponic Cucumber

Al-Rawahy, Muthir S.; Al-Rawahy, S. A.; Al-Mulla, Yaseen A.; Nadaf, S. K.

doi:10.5539/jas.v11n3p75

Cited by 16 publications

(10 citation statements)

References 15 publications

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“…It must also be noted that there is a relationship between temperature and oxygen as the solubility of oxygen in water depends on temperature [ 162 ]. Al-Rawahy et al [ 163 ] noted that high temperate of nutrient solution is a stress around the rootzone and is an important limiting factor for hydroponic crop growth because of its impacts on dissolved oxygen (DO) levels in the nutrient solution. Al-Rawahy et al [ 163 ] studied the effect of nutrient solution temperature on its oxygen level, and the growth, yield and quality of cucumber ( Cucumis sativus L.) grown hydroponically in a greenhouse and found that cooler nutrient solutions positively influenced DO levels in the nutrient solution in both the feeding tank and drains.…”

Section: Plant Growth Factors Affecting Indoor Productionmentioning

confidence: 99%

“…Al-Rawahy et al [ 163 ] noted that high temperate of nutrient solution is a stress around the rootzone and is an important limiting factor for hydroponic crop growth because of its impacts on dissolved oxygen (DO) levels in the nutrient solution. Al-Rawahy et al [ 163 ] studied the effect of nutrient solution temperature on its oxygen level, and the growth, yield and quality of cucumber ( Cucumis sativus L.) grown hydroponically in a greenhouse and found that cooler nutrient solutions positively influenced DO levels in the nutrient solution in both the feeding tank and drains. This was accompanied by higher levels of oxygen use in the rootzones of the cooled treatments compared to the controls with no cooled rootzones.…”

Section: Plant Growth Factors Affecting Indoor Productionmentioning

confidence: 99%

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Indoor Vegetable Production: An Alternative Approach to Increasing Cultivation

Ampim

Obeng

Olvera-González

2022

Plants

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As the world’s population is increasing exponentially, human diets have changed to less healthy foods resulting in detrimental health complications. Increasing vegetable intake by both rural and urban dwellers can help address this issue. However, these communities often face the challenge of limited vegetable supply and accessibility. More so, open field vegetable production cannot supply all the vegetable needs because biotic and abiotic stress factors often hinder production. Alternative approaches such as vegetable production in greenhouses, indoor farms, high tunnels, and screenhouses can help fill the gap in the supply chain. These alternative production methods provide opportunities to use less resources such as land space, pesticide, and water. They also make possible the control of production factors such as temperature, relative humidity, and carbon dioxide, as well as extension of the growing season. Some of these production systems also make the supply and distribution of nutrients to crops easier and more uniform to enhance crop growth and yield. This paper reviews these alternative vegetable production approaches which include hydroponics, aeroponics, aquaponics and soilless mixes to reveal the need for exploring them further to increase crop production. The paper also discusses facilities used, plant growth factors, current challenges including energy costs and prospects.

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Section: Plant Growth Factors Affecting Indoor Productionmentioning

confidence: 99%

Section: Plant Growth Factors Affecting Indoor Productionmentioning

confidence: 99%

Indoor Vegetable Production: An Alternative Approach to Increasing Cultivation

Ampim

Obeng

Olvera-González

2022

Plants

View full text Add to dashboard Cite

show abstract

“…Thus, the lower dissolved oxygen values in the AP treatments, in addition to fish metabolism and respiration, was due to nitrification process. As far as crop effect is concerned, lettuce had much higher growth rate compared to Catalogna (Maucieri et al, 2019), hence consuming more oxygen for aerobic respiration (Ehret et al, 2010;Lara et al, 2011); then, Swiss chard had lower growth rate, but water temperature was lower, increasing oxygen solubility (Trejo-Téllez and Gómez-Merino, 2012;Al-Rawahy et al, 2019).…”

Section: Environmental Conditionsmentioning

confidence: 99%

Nitrogen budget in recirculating aquaponic systems with different fish stocking density

et al. 2020

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As in any agroecosystem, also in aquaponics the nitrogen (N) balance represents an important tool to evaluate sustainability, and to identify factors that can improve N use efficiency (NUE) and reduce N losses. In this respect, fish stocking density has been little investigated, hence this research aimed to evaluate the N balance of a low technology aquaponic (AP) system managed at two fish densities in comparison with a hydroponic system (HP). In the fish tanks common carp at two initial stocking densities were reared (2.5 and 4.6 kg m–3 in low and high AP, hereafter named APL and APH, respectively) and the vegetated sector was cultivated with a leafy vegetable crop succession (Catalogna chicory, lettuce, Swiss chard). The N balance considered N input as fish feed or fertiliser, and N content in the initial water and the N output as N in the incremented fish biomass, in the harvested vegetables, in the sediments, and in the remaining water. Total N loss was estimated by difference. The total N input and the N loss through gas emission in the atmosphere were much higher in AP than in HP, particularly at high stocking density. The opposite trend was observed for the N input recovered in vegetable aboveground biomass. The N input recovered as fish biomass was slightly higher in APL compared to APH. The better results of APL than APH suggest that in low-tech AP system lower initial fish density should be adopted at the system start up to maximise both production and N recovery.

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“…The effect of temperature on nutrient uptake cannot be generalized, as these effects vary depending on the physiological processes and organs of plants (Yan et al, 2012), and can cause phytosanitary and nutritional problems in plants, mainly due to the low availability of oxygen to the roots (Monteiro Filho et al, 2018). According to Sakamoto et al (2016) and Al-Rawahy et al (2019), the dissolved oxygen concentrations has an inverse relationship with the temperatures of the nutrient solutions, that is, oxygen availability decreases in the plant rhizosphere with increasing solution temperatures, as observed in a previous experiment with coriander (Silva et al, 2020b).…”

Section: Figure 2 Mean Daily Temperatures Of the Nutrient Solutions mentioning

confidence: 99%

Hydroponic Cultivation of Coriander Using Fresh and Brackish Waters With Different Temperatures of the Nutrient Solution

et al. 2020

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A large number of studies on salinity in hydroponic systems have been carried out, but few of them have evaluated the interaction between salinity and nutrient solution temperatures. Two experiments were carried out in a randomized block design from January to February (Experiment I) and June to July 2018 (Experiment II). Experiment I consisted of treatments with five combinations, as follows: unheated (control) and heated nutrient solution (NS) at a temperature of 32°C using fresh water with an electrical conductivity (ECw) of 0.3 dS m −1 , and unheated and heated NS at temperatures of 30 and 32°C using brackish water with an ECw of 6.5 dS m −1 in the main plots, with two coriander cultivars (Tabocas and Verdão) in the subplots, which were grown in the same hydroponic channel. The cultivar Verdão was grown in Experiment II in a 2 × 2 factorial arrangement, consisting of two NS temperatures (unheated and heated at 30°C) and two ECw levels (0.3 and 6.5 dS m −1). Coriander cultivation is feasible with heated NS despite decreases in shoot fresh matter production compared to the control of approximately 37% for Experiment I (cultivar Verdão at a temperature of 32°C and using fresh water) and 17% for Experiment II (temperature of 30°C and using fresh and brackish waters) at 25 days after transplanting.

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Influence of Nutrient Solution Temperature on Its Oxygen Level and Growth, Yield and Quality of Hydroponic Cucumber

Cited by 16 publications

References 15 publications

Indoor Vegetable Production: An Alternative Approach to Increasing Cultivation

Indoor Vegetable Production: An Alternative Approach to Increasing Cultivation

Nitrogen budget in recirculating aquaponic systems with different fish stocking density

Hydroponic Cultivation of Coriander Using Fresh and Brackish Waters With Different Temperatures of the Nutrient Solution

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