Leaching requirement and salinity threshold for the yield and agronomic characteristics of halophytes under salt stress

El-Haddad, El-Sayed H. M.; Noaman, M. M.

doi:10.1006/jare.2000.0783

Cited by 20 publications

(12 citation statements)

References 11 publications

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“…The highest difference between the actual and the calculated parameters EC dw , Na + dw and Cl -dw was found at the leaching level of 3%, while the lowest difference occurred at the leaching level of 37%. These results are consistent with those obtained by Hoffman et al (1979), Miyamoto et al (1996) and El-Haddad and Noaman (2001). As the leaching level increases, the steady-state mass balance of salt, sodium and chloride is more closely approached.…”

Section: Comparison Of the Actual Soil Salinity Parameters With The Csupporting

confidence: 91%

“…Several researchers such as Feizi (1993), Garcia-Sanchez et al (2003) and Flagella et al (2004) reported advantageous effects of leaching on soil improvement and crop yield. Some researchers also pointed out the disadvantages of soil salt leaching, which causes movement of soil nutrient such as N and K, and its limitations in fine-texture soils where it results in waterlogging and other environmental problems (El-Haddad and Noaman 2001, Yurtseven et al 2005, Kolahchi and Jalali 2007. The required amount of leaching significantly depends on salinity of irrigation water and crop salt tolerance.…”

mentioning

confidence: 99%

“…The required amount of leaching significantly depends on salinity of irrigation water and crop salt tolerance. El-Haddad and Noaman (2001) reported that the leaching level LF of 0.25 at irrigation water salinity of 40 g/l is inadequate to attain a steady-state salt balance during the growing period of halophytes, although the drainage water salinity more than 90 g/l has been reached.…”

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confidence: 99%

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Effects of leaching on soil desalinization for wheat crop in an arid region

Mostafazadeh‐Fard¹,

Heidarpour²,

Aghakhani³

et al. 2008

PLANT SOIL ENVIRON

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Leaching is one of the most practical methods for improvement of saline soils and both the quality and the quantity of leaching water play an important role in desalinization of these soils. To determine the effects of different qualities and quantities of leaching water on salinity of drainage water during the growing season of wheat, pot experiments were conducted with a silty clay loam soil, a typical salt-affected soil in an arid region of central part of Iran. The experiment comprised the treatments of three irrigation water salinities (4, 9 and 12 dS/m) and four leaching levels (3, 20, 29 and 37%), using a factorial design with seven replications for each treatment. The results showed that at the beginning of the growing season the drainage water salinity was highest for all treatments. Then it started to decrease and depending on the quality and quantity of leaching water it became nearly constant or continued to decrease until the end of the growing season. The leaching of salts from the soil profile was more efficient during the first few irrigations and thereafter became less efficient. The increase of leaching level had a significant effect on the decrease of drainage water salinity. The comparison with steady-state mass balance of soil salt, sodium and chloride showed that the simple ratio of chloride in irrigation water to chloride in drainage water can be used to estimate the leaching fraction of saline soils with high accuracy.

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Section: Comparison Of the Actual Soil Salinity Parameters With The Csupporting

confidence: 91%

mentioning

confidence: 99%

mentioning

confidence: 99%

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Effects of leaching on soil desalinization for wheat crop in an arid region

Mostafazadeh‐Fard¹,

Heidarpour²,

Aghakhani³

et al. 2008

PLANT SOIL ENVIRON

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“…When plants are irrigated with saline water, they can only remove water from the soil solution up to their salt tolerance limit (Rhoades, 1990;Westcot, 1988), and this constraint imposes a limit on water uptake, creating a DF depending on their upper tolerance limit, the salinity of the irrigation supply, and the volume of water applied (Miyamoto et al, 1996;Glenn et al, 1998;Noaman and El-Haddad, 2000;El-Haddad and Noaman, 2001). Ice plant and acacia were the only plants for which DF did not increase at the highest salinity and they tolerated up to 15,000 mg l À1 salts in the soil solution in this study.…”

Section: Soil Salinity and Dfmentioning

confidence: 99%

Recycling industrial saline wastewater for landscape irrigation in a desert urban area

Gerhart

Kane

Glenn

2006

Journal of Arid Environments

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“…Several experiments have been conducted along the years to quantify this type of response of the crops to salinity (Steppuhn et al, 2005;Khan et al, 2003;El-Haddad & Noaman, 2001). Van Genuchten (1983) developed a software capable to make the adjustment of this model to data obtained in groups of experiments, which is particularly interesting for experiments repeated along years or seasons.…”

Section: Introductionmentioning

confidence: 99%

Emergence and growth of corn and soybean under saline stress

Blanco

Folegatti²,

Gheyi

et al. 2007

Sci. agric. (Piracicaba, Braz.)

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Emergence and seedling growth may be severely affected by salinity, mainly for sensitive crops. The objective of the present study was to verify the tolerance of corn and soybean to the irrigation water salinity (EC i ) during the emergence and initial development stages. Seeds of corn, hybrid 'AG-6690', and soybean, cv. 'Conquista', were sown in pots containing material from a sandyloam soil and irrigated with water of increasing salinity levels, from 0.3 to 5.9 dS m -1 , giving nine levels of EC i obtained by the addition of an equivalent proportion of sodium and calcium chloride, except for EC i = 0.3 dS m -1 (tap water). Emergence of corn was not affected by salinity but seedling development was reduced for EC i above 1.5 dS m -1 . Emergence and growth of soybean were reduced by water salinity and the crop was more tolerant during the emergence (EC i = 2.7 dS m -1 ) than in the initial development (EC i = 1.0 dS m , totalizando nove níveis de CE i obtidos pela adição de cloreto de sódio e de cálcio em proporções equivalentes, exceto para CE i = 0,3 dS m -1 (água de torneira). A emergência do milho não foi afetada pela salinidade da água, mas o desenvolvimento das plantas foi reduzido para CE i acima de 1,5 dS m -1 . A emergência e o crescimento da soja foram reduzidos pela salinidade, sendo mais tolerante na fase de emergência (CE i = 2,7 dS m -1 ) do que no desenvolvimento inicial das plantas (CE i = 1.0 dS m -1 ). A salinidade da solução do solo (CE s ) foi linearmente correlacionada à CE i e afetou o crescimento do milho e da soja para CE s acima de 3 e 2 dS m -1 , respectivamente. Palavras-chave: Zea mays, Glycine max, tolerância, solução do solo

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Leaching requirement and salinity threshold for the yield and agronomic characteristics of halophytes under salt stress

Cited by 20 publications

References 11 publications

Effects of leaching on soil desalinization for wheat crop in an arid region

Effects of leaching on soil desalinization for wheat crop in an arid region

Recycling industrial saline wastewater for landscape irrigation in a desert urban area

Emergence and growth of corn and soybean under saline stress

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