Interaction of salinity, nitrogen, and phosphorus fertilization on wheat

Soliman, Mario; Shalabi, Hani; Campbell, W. F.

doi:10.1080/01904169409364796

Cited by 44 publications

(25 citation statements)

References 13 publications

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“…Plant growth can be inhibited by high salt concentrations through osmotic stress, nutritional imbalance, and specific ion toxicity (Alam 1994;Jacoby 1994;Munns and Tester 2008). It is known that the growth inhibition and the adverse effects induced by salinity can be alleviated by proper use of fertilizer and water management, depending on plant species, salinity level, and environmental conditions (Shen et al 1994;Soliman et al 1994;Albassam 2001;fertilization with N may contribute to soil salinization and increase the negative effects of soil salinity on plant performance (Villa-Castorena et al 2003). In addition, the potential for NO 3 leaching may increase where moderate to high amounts of salts are present in the soils because plants under salt stress can not absorb and or utilize the applied N as efficiently as the plants not subjected to salt stress (Ward et al 1986;Pessarakli and Tucker 1988;Bowman et al 2006).…”

Section: Introductionmentioning

confidence: 99%

Effects of salinity and nitrogen on cotton growth in arid environment

et al. 2009

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The influences of different N fertilization rates and soil salinity levels on the growth and nitrogen uptake of cotton was evaluated with a pot experiment under greenhouse conditions. Results showed that cotton growth measured as plant height was significantly affected by the soil salinity and Nsalinity interaction, but not by N alone. Cotton was more sensitive to salinity during the emergence and early growth stages than the later developmental stages. At low to moderate soil salinity, the growth inhibition could be alleviated by fertilizer application. Soil salinity was a dominated factor affecting cotton's above-ground dry mass and root development. Dry mass of seed was reduced by 22%, 52%, and 84% respectively, when the soil salinity level increased from control level of 2.4 dS m −1 to 7.7 dS m −1 , 12.5 dS m −1 and to 17.1 dS m −1 , respectively. N uptake increased with N fertilization at adequate rates at both low and medium soil salinities but was not influenced by over N fertilization. At higher salinities, N uptake was independent of N rates and mainly influenced by soil salinity. The uptake of K decreased with soil salinity. The concentration of Na, Cl and Ca in plant tissues increased with soil salinity with highest concentrations in the cotton leaf.

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Section: Introductionmentioning

confidence: 99%

Effects of salinity and nitrogen on cotton growth in arid environment

et al. 2009

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“…Application of fertilizers to saline soils may exacerbate soil salinity conditions (Grattan and Grieve 1999). Most salinity and nitrogen interaction studies have been conducted on soils that were deficient in N. Therefore, application of N fertilizers improved growth and/or yield of corn, wheat (Soliman et al 1994), cotton, millet and rice (Grattan and Grieve 1999). In most of these studies, the fact that applied N did not improve the growth under extreme saline conditions suggests that applied N decreased plant salt tolerance (Grattan and Grieve 1999).…”

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confidence: 99%

Interactive effect of salinity and two nitrogen fertilizers on growth and composition of sorghum

Esmaili¹,

Homaei²,

Malakouti³

2008

Plant Soil Environ.

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The objective of this study was to investigate the interactive effects of salinity and different sources of applied N on growth, yield and nutrient composition of sorghum. The salinity treatments C 0 , C 1 , C 2 , C 3 and C 4 corresponded to 0.6, 6, 8, 10 and 12 dS/m, respectively. Eight fertilization treatments combined urea and ammonium nitrate sources. The height, fresh weight, dry weight, leaf area, N, K, Ca, Mg, Na and Cl contents of treated plants were measured after harvesting. Results indicate that both emergence and growth were significantly decreased by increasing salinity. The plant response to N fertilizers appeared to be different at each salinity level. The maximum production of C 0 treatment was obtained for N-3, while at C 1 and C 2 treatments the maximum yield was obtained for N-2 and N-1 treatments, respectively. In the saline treatments, there was no significant difference between the two applied N-sources. The N, Ca, Mg, Na and Cl concentrations in plant tissues increased with increasing salinity; K concentration and the uptake of N, K, Ca and Mg were however decreased.

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“…Proper management of N fertilizer is especially important in saline soils where N application might reduce the adverse effects of salinity on plant growth and yield (Shen et al, 1994;Soliman et al, 1994;Grattan and Grieve, 1999;Albassam, 2001;Flores et al, 2001). In Xinjiang, China, a commonly used fertigation strategy is to start N injection when one-third of the total irrigation water during an irrigation event has been applied and to stop at 0.5 h before the irrigation cycle ends.…”

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confidence: 99%