Options for Using Low-quality Water for Vegetable Crops

Shannon, Michael C.; Grieve, Catherine M.

doi:10.21273/hortsci.35.6.1058

Cited by 14 publications

(3 citation statements)

References 17 publications

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“…Hydroponic vegetable growers are searching for ways of reducing discharge and increasing on-farm reuse of drainage (Shannon and Grieve, 2000), because discharge wastes both water and fertilizer, pollutes the environment, and sometimes even results in soil salinization (Varlagas et al, 2010). One of the most important factors limiting the reuse of nutrient solutions for hydroponic production of common vegetables (e.g., cucumber, tomato, and pepper) is elevated salinity (Van Os, 1998), resulting mainly from Na + and Claccumulations attributable to differential ion uptake by these crops (Kronzucker and Britto, 2011;Savvas et al, 2005).…”

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confidence: 99%

Potential of Producing Salicornia bigelovii Hydroponically as a Vegetable at Moderate NaCl Salinity

Kong¹,

Zheng²

2014

horts

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Salicornia bigelovii is a halophyte that is capable of growing under high salinity. To evaluate the potential of producing S. bigelovii hydroponically as a vegetable at moderate NaCl concentrations, plants were grown in nutrient solutions with 6, 8, and 10 mm NaCl, and with 200 mm NaCl as a control. Results showed that plants had a reduced main stem length, canopy width, stem diameter, and root system length in 6 to 10 mm NaCl compared with those in 200 mm. Also, fresh weight increase, fresh and dry weights of individual plants, marketable yield, and water use efficiency of the plants grown in solutions with 6 to 10 mm NaCl were significantly lower than those grown in 200 mm. Associated with the reduced growth attributes, remarkable decreases in sodium uptake by the plants were also obtained in 6 to 10 vs. 200 mm NaCl. The results suggest that S. bigelovii is not a good candidate for hydroponic production as a vegetable at moderate NaCl salinity resulting from reduced growth attributes, which are possibly associated with decreased sodium uptake.

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Potential of Producing Salicornia bigelovii Hydroponically as a Vegetable at Moderate NaCl Salinity

Kong¹,

Zheng²

2014

horts

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“…Hydroponic vegetable growers are searching for ways to increase on-farm reuse of nutrient solutions and to reduce discharge into the environment (Shannon and Grieve, 2000). Discharge wastes both water and fertilizer, pollutes the environment, and can result in soil salinization (Varlagas et al, 2010).…”

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Suaeda glauca Can Be Produced Hydroponically at Moderate NaCl Salinity

Kong¹,

Zheng²

2015

horts

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Suaeda glauca is an annual halophyte growing in saline–alkali environment in North China. To evaluate the potential of producing S. glauca as a vegetable at moderate NaCl concentrations, plants were grown in nutrient solutions with 6, 8, and 10 mm NaCl, and with 200 mm NaCl as a control. Results showed that main stem length, true leaf number, side branch number, and canopy width of plants in 6–10 mm NaCl were not significantly different from those in 200 mm. Also, no significant differences in fresh and dry weights of individual plants, marketable yield, and water use efficiency of the plants were observed between 6–10 and 200 mm NaCl treatments. Despite remarkable decreases in sodium uptake, similar water consumptions by the plants were obtained in 6–10 vs. 200 mm NaCl. The results suggest that S. glauca is a potential candidate for hydroponic production as a vegetable at moderate NaCl salinity, since growth attributes and biomass accumulation were not reduced when grown at lower salinity levels, despite with decreased sodium uptake.

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“…Drainage water reuse has been promoted as an environmentally sound method for the disposal of saline drainage water (Rhoades, 1989). A multiple-use approach has been advocated to conserve water, reduce drainage water volume, and minimize the use of otherwise arable land for the construction of temporary disposal facilities, such as evaporation ponds (Cervinka, 1994;Shannon and Grieve, 1999). In this system, selected crops would be grown and irrigated in sequence, starting with very salt-sensitive species, and continuing with increasingly salt-tolerant crops.…”

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Screening Eucalyptus Clones for Salt Tolerance

Grieve¹,

Guzy²,

Poss³

et al. 1999

HortSci

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Agroforestry plantations offer environmentally acceptable strategies for the reuse of saline drainage waters. Tree species suitable for use in such systems must be selected for survival and sustained growth under highly saline conditions. In this screening trial, four clones of Eucalyptus camaldulensis Dehn. (4543, 4544, 4573, and 4590) and one clone of E. rudis Endl. (4501) were grown in greenhouse sand cultures irrigated with sodium sulfate-dominated waters. Solution compositions were prepared to simulate saline drainage waters typically found in the San Joaquin Valley of California. Electrical conductivities of the solutions ranged from 2 to 28 dS·m -1 . Treatments were replicated three times. All plants survived and were harvested after 7 weeks under saline treatment. Plant height was measured weekly and shoot biomass was determined at final harvest. The salinity levels that resulted in a 50% reduction in biomass production (C 50 ) were 16.4 (4573), 17.1 (4543), 17.7 (4544), 29.0 (4590), and 30.0 dS·m -1 (4501). Over the range of salinities from 4 to 20 dS·m -1 , clones 4501, 4590, and 4573 generally maintained higher relative growth rates (RGR) than did clones 4544 and 4543. However, at the highest salinity, RGRs of clones 4501, 4544, and 4573 were significantly greater than those of clones 4543 and 4590. Assessed on the basis of biomass production, clones 4501 (E. rudis) and 4590 (E. camaldulensis) showed exceptional potential for use in agroforestry systems where the saline drainage waters are sodium sulfate-dominated.

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Options for Using Low-quality Water for Vegetable Crops

Cited by 14 publications

References 17 publications

Potential of Producing Salicornia bigelovii Hydroponically as a Vegetable at Moderate NaCl Salinity

Potential of Producing Salicornia bigelovii Hydroponically as a Vegetable at Moderate NaCl Salinity

Suaeda glauca Can Be Produced Hydroponically at Moderate NaCl Salinity

Screening Eucalyptus Clones for Salt Tolerance

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