Effects of EC-based irrigation scheduling and CO2 enrichment on water use efficiency of a greenhouse cucumber crop

Sánchez-Guerrero, M.C.; Lorenzo, Pilar; Medrano, E.; Baille, Alain; Castilla, N.

doi:10.1016/j.agwat.2008.09.001

Cited by 46 publications

(22 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Sánchez-Guerrero et al (2009) also compared the water use efficiency of cucumbers with and without CO 2 treatment and found that water use efficiency with CO 2 was improved, given that DW had increased with CO 2 supply. In our experiment, water use efficiency was enhanced similarly to their study (Sánchez-Guerrero et al, 2009), with total DW under misting being slightly increased (Table 2). Irrigation water was reduced by an estimated 0.1 L/plant/day and water consumption by the misting nozzle was estimated to be 0.05 L/plant/day in misting under the low EC treatment.…”

Section: Discussionsupporting

confidence: 72%

Effects of relative humidity and nutrient supply on growth and nutrient uptake in greenhouse tomato production

Suzuki

Umeda

Matsuo

et al. 2015

Scientia Horticulturae

View full text Add to dashboard Cite

a b s t r a c tHigher relative humidity under elevated CO 2 conditions increases stomatal conductance and is expected to promote photosynthesis and growth of tomato. However, yield increase under higher relative humidity has been often reported to be unstable, depending on the growing conditions. Therefore, we investigated the effect of relative humidity and nutrient supply on growth and nutrient uptake under elevated CO 2 conditions in greenhouse tomato production. In two greenhouses, we grew tomato hydroponically at two electrical conductivity (EC) levels (low EC treatments: 0.8-1.2 dS m −1 , high EC treatments: 1.6-1.9 dS m −1 ). In one greenhouse, we installed a humidification system. The other was designated as a control. The dry weight (DW) per plant tended to increase with humidification though without significant differences. The leaf area per plant was not affected by humidification, but the high EC treatment increased the leaf area. The average water uptake in the low EC with mist decreased compared with that without mist. Our results suggested that water use efficiency was increased by higher humidity, whereas the nutrient content of leaves was suppressed by mist in the low EC. In both the treatments, supplying higher EC levels of nutrient solutions increased N, K and P contents but did not increased Ca or Mg contents as well as in low EC without mist. These results suggest that supplying high EC nutrient solutions cannot increase Ca and Mg contents sufficiently in leaves and stems. To stably increase yield of tomato by humidification under elevated CO 2 conditions, it is important to monitor the transpiration rate and carefully control relative humidity.

show abstract

Section: Discussionsupporting

confidence: 72%

Effects of relative humidity and nutrient supply on growth and nutrient uptake in greenhouse tomato production

Suzuki

Umeda

Matsuo

et al. 2015

Scientia Horticulturae

View full text Add to dashboard Cite

show abstract

“…A possible reason is that the [N] in leaves treated with high N supplies was still enough for guaranteeing the RuBP regeneration and Rubisco activity to match the increased C-fixation [10,46]. These results also confirmed that increasing N supply could alleviate or prevent the photosynthetic acclimation under elevated [CO 2 ] condition and ensure the sustainability of the [CO 2 ] enrichment fertilization effects on crop growth [15][16][17]33].…”

Section: Impacts Of [Co 2 ] and N Supply On The Growth Of Cucumberssupporting

confidence: 52%

“…The beneficial effects of CO 2 enrichment on stimulating plant growth and biomass accumulation of crops have been extensively reported [2,5,6,40]. An increase in the DW ranging from 13.5% to 34.4% has been reported for cucumbers, when [CO 2 ] was elevated to 500-760 µmol mol −1 [1,31,33,41,42], and ranged from 43.9% to 128.0% when [CO 2 ] was elevated to 1000-1200 µmol mol −1 [28][29][30][31]43]. In the present work, in moderate N (N3), the increase in the DW was 30.5% and not significant when [CO 2 ] was elevated to 625 µmol mol −1 , and 29.4% and 68.9% when [CO 2 ] was elevated to 1200 µmol mol −1 , at T1 and T2 stage, respectively ( Table 2).…”

Section: Impacts Of [Co 2 ] and N Supply On The Growth Of Cucumbersmentioning

confidence: 97%

“…Cucumber (Cucumis sativus L.) is globally one of the most important vegetables that prefers to be cultivated in greenhouses with CO 2 enrichment [27]. While the growth, photosynthesis [28], nitrogen metabolism [29], yield [1], fruit quality [30], root morphology [31], root exudate [32], and water use efficiency [33] of cucumber grown in elevated [CO 2 ] conditions have been studied, the effects of different [CO 2 ] and N supply levels on mineral element concentrations in cucumber and the key factor leading to these changes have received far less attention. Moreover, the available information about the optimum N supply under different elevated [CO 2 ] is extremely limited.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Interactive Effects of the CO2 Enrichment and Nitrogen Supply on the Biomass Accumulation, Gas Exchange Properties, and Mineral Elements Concentrations in Cucumber Plants at Different Growth Stages

Dong

Gruda

et al. 2020

Agronomy

View full text Add to dashboard Cite

The concentration changes of mineral elements in plants at different CO2 concentrations ([CO2]) and nitrogen (N) supplies and the mechanisms which control such changes are not clear. Hydroponic trials on cucumber plants with three [CO2] (400, 625, and 1200 μmol mol−1) and five N supply levels (2, 4, 7, 14, and 21 mmol L−1) were conducted. When plants were in high N supply, the increase in total biomass by elevated [CO2] was 51.7% and 70.1% at the seedling and initial fruiting stages, respectively. An increase in net photosynthetic rate (Pn) by more than 60%, a decrease in stomatal conductance (Gs) by 21.2–27.7%, and a decrease in transpiration rate (Tr) by 22.9–31.9% under elevated [CO2] were also observed. High N supplies could further improve the Pn and offset the decrease of Gs and Tr by elevated [CO2]. According to the mineral concentrations and the correlation results, we concluded the main factors affecting these changes. The dilution effect was the main factor driving the reduction of all mineral elements, whereas Tr also had a great impact on the decrease of [N], [K], [Ca], and [Mg] except [P]. In addition, the demand changes of N, Ca, and Mg influenced the corresponding element concentrations in cucumber plants.

show abstract

“…No effect of CO 2 supply was observed on crop water uptake (W U ), which was similar in both enriched and reference crops and mainly dependent on the amount of intercepted radiation (Table 5). Sánchez-Guerrero et al (2009) found no effect of CO 2 supply on water uptake for a cucumber crop.…”

Section: Effect Of Salinity and Co 2 Enrichment On Water Use And Its mentioning

confidence: 93%

Carbon dioxide enrichment: a technique to mitigate the negative effects of salinity on the productivity of high value tomatoes

Sánchez-González¹,

Sánchez-Guerrero²,

Medrano³

et al. 2016

Span. j. agric. res.

View full text Add to dashboard Cite

Guerrero et al., 2005). The atmospheric CO 2 level limits the potential photosynthesis of most vegetable species and their productivity (Bowes, 1993). Although ventilation allows the renovation of greenhouse air, it is not often sufficient to replace the CO 2 consumed by crop photosynthesis. In the greenhouses of South-Eastern Spain internal CO 2 concentrations 20% lower than the external CO 2 concentration were recorded, even when the greenhouse vents were RESEARCH ARTICLE OPEN ACCESS AbstractThe present study was conducted to determine the mitigating influence of greenhouse CO 2 enrichment on the negative effects of salinity in Mediterranean conditions. Hybrid Raf (cv. Delizia) tomato plants were exposed to two salinity levels of the nutrient solution (5 and 7 dS/m) obtained by adding NaCl, and two CO 2 concentrations (350 and 800 μmol/mol) in which CO 2 enrichment was applied during the daytime according to a strategy linked to ventilation. Increasing water salinity negatively affected the leaf area index (LAI), the specific leaf area (SLA), the water use efficiency (WUE), the radiation use efficiency (RUE) and dry weight (DW) accumulation resulting in lower marketable yield. The high salinity treatment (7 dS/m) increased fruit firmness (N), total soluble solids content (SSC) and titratable acidity (TA), whereas pH was reduced in the three ripening stages: mature green/breaker (G), turning (T), and pink/light red (P). Also, the increase in electrical conductivity of the nutrient solution led to a general change in intensity of the sensory characteristics of tomato fruits. On the other hand, CO 2 enrichment did not affect LAI although SLA was reduced. RUE and DW accumulation were increased resulting in higher marketable yield, through positive effects on fruit number and their average weight. WUE was enhanced by CO 2 supply mainly through increased growth and yield. Physical-chemical quality parameters such as fruit firmness, TA and pH were not affected by CO 2 enrichment whereas SSC was enhanced. Greenhouse CO 2 enrichment did mitigate the negative effect of saline conditions on productivity without compromising organoleptic and sensory fruit quality. Additional key words: Solanum lycopersicum; CO 2 ; electrical conductivity; yield; growth; radiation use efficiency. Abbreviations used: BER (blossom end rot); dat (days after transplanting); EC (electrical conductivity); LAI (leaf area index); PAR (photosynthetically active radiation); R g (global radiation); RUE (radiation use efficiency); SLA (specific leaf area); SSC (soluble solids content); TA (titratable acidity); VPD (vapour pressure deficit ); W U (crop water uptake); WUE (water use efficiency); WUE S (supply WUE); WUE U (uptake WUE).

show abstract

Effects of EC-based irrigation scheduling and CO2 enrichment on water use efficiency of a greenhouse cucumber crop

Cited by 46 publications

References 16 publications

Effects of relative humidity and nutrient supply on growth and nutrient uptake in greenhouse tomato production

Effects of relative humidity and nutrient supply on growth and nutrient uptake in greenhouse tomato production

Interactive Effects of the CO2 Enrichment and Nitrogen Supply on the Biomass Accumulation, Gas Exchange Properties, and Mineral Elements Concentrations in Cucumber Plants at Different Growth Stages

Carbon dioxide enrichment: a technique to mitigate the negative effects of salinity on the productivity of high value tomatoes

Contact Info

Product

Resources

About