Salt distribution and the growth of cotton under different drip irrigation regimes in a saline area

Wang, Ruoshui; Kang, Yongqiang; Wan, Shuqin; Hu, Wei; Liu, Shiping; Liu, Shuhui

doi:10.1016/j.agwat.2011.08.005

Cited by 148 publications

(85 citation statements)

References 23 publications

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“…This confirmed that soil alkalization occurred in the early stage of irrigation with saline water, likely from reduction in soil salinity and higher pH e of irrigation water than pH e in the soil profile before transplanting. In contrast, pH e declined in 2013 and 2014, likely because decreased SAR, soil respiration, soil humus and fertilization may also play a role in the pH e change (Chowdhury et al, 2011;Wang et al, 2011Yuan et al, 2007. Similar results were obtained by Sun et al (2012b) in other coastal region.…”

Section: Discussionsupporting

confidence: 76%

Response of a salt-sensitive plant to processes of soil reclamation in two saline–sodic, coastal soils using drip irrigation with saline water

Kang

Wan

et al. 2016

Agricultural Water Management

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a b s t r a c tThe aim of this study was to evaluate the impact of soil types and properties on coastal saline soil reclamation and the response of plant growth to the reclamation processes in two soils. Two very heavy coastal saline soils were reclaimed in a three-year trial using drip irrigation with saline water. Chinese roses (Rosa chinensis) were planted, and soil indexes, growth characters, ion absorption and dry matter production were determined. Our results showed that significant salt leaching occurred in both soils, and the effect during the early period of reclamation was better in sandy loam than silt soil. There were higher emergence and survival rates of plants in sandy loam soil due to the rapid reclamation process, while plant growth and dry mass were greater in silt soil due to good fertilizer and water conservation. Most roots were present in the 0-20-cm profile in both soils, but the fine root length value in silt soil was relatively high. These results indicate that water and nutrient management differed in the two soils. During soil reclamation, more attention should be paid to nutrient supply and maintaining soil moisture in sandy loam and to rapidly establishing suitable soil root-zone environments for plant emergence in silt soil.

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Section: Discussionsupporting

confidence: 76%

Response of a salt-sensitive plant to processes of soil reclamation in two saline–sodic, coastal soils using drip irrigation with saline water

Kang

Wan

et al. 2016

Agricultural Water Management

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“…The effectiveness of soil mulching for soil salinity control has been documented in several annual crops, particularly in the last decade in China [Yang et al (2006) in wheat; Zhang et al (2008) in Swiss chard; Dong et al (2009), Bezborodov et al (2010 and Wang et al (2011) in cotton; Pang et al (2010) in a winter wheat-summer maize double cropping system; Wan et al (2010) in cucumber; Morales-García et al (2011) in bell pepper]. Chaudhry et al (2004) evaluated in a saline and very high sodic soil planted with eucalyptus trees and irrigated with a sodic and moderately saline water, the effects of several mulches (bare and tilled soils, rice straw and plastic) on soil water content, salinity and sodicity.…”

mentioning

confidence: 99%

Effectiveness of inorganic and organic mulching for soil salinity and sodicity control in a grapevine orchard drip-irrigated with moderately saline waters

Aragüés

Medina

Clavería

2014

Span. j. agric. res.

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Soil mulching is a sensible strategy to reduce evaporation, accelerate crop development, reduce erosion and assist in weed control, but its efficiency for soil salinity control is not as well documented. The benefits of inorganic (plastic) and organic (grapevine pruning residues) mulching for soil salinity and sodicity control were quantified in a grapevine orchard (cultivars ‘Autumn’ Royal and ‘Crimson’) drip-irrigated with moderately saline waters. Soil samples were taken at the beginning and end of the 2008 and 2009 irrigation seasons in six vines of each cultivar and mulching treatment. Soil saturation extract electrical conductivity (ECe), chloride (Cle) and sodium adsorption ratio (SARe) values increased in all treatments of both grapevines along the irrigation seasons, but the increases were much lower in the mulched than in the bare soils due to reduced evaporation losses and concomitant decreases in salt evapo-concentration. The absolute salinity and sodicity daily increases in ‘Autumn’ and ‘Crimson’ 2008 and in ‘Crimson’ 2009 were on the average 44% lower in the plastic and 76% lower in the organic mulched soils than in the bare soil. The greater efficiency of the organic than the plastic mulch in ‘Crimson’ 2009 was attributed to the leaching of salts by a precipitation of 104 mm that infiltrated the organic mulch but was intercepted by the plastic mulch. Although further work is needed to substantiate these results, the conclusion is that the plastic mulch and, particularly, the organic mulch were more efficient than the bare soil for soil salinity and sodicity control.

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“…Most soil available P accumulated in the upper soil layer (0-20 cm), which might be mainly due to the point-source characteristic of drip irrigation and Pcontaining fertilizer. In addition, more CaCO 3 present at shallower soil depths may have absorbed more P than in deeper soil layers (Wang et al, 2011. Soil moisture content influences the effectiveness and availability of applied P (Campo et al, 1998); moreover, the higher water availability in the topsoil under drip irrigation could be related to a higher transformation from organic to available P (Yang et al, 2011).…”

Section: Soil Available Pmentioning

confidence: 99%

“…Since the low EC e zones we found were usually within 40 cm (Wang et al, 2011), a soil depth interval of 0-40 cm was analyzed. Soil samples were obtained on soil cores from each plot with an auger (2.0 cm in diameter and 15 cm long) on 12 May 2008 (before seeding), 13 September 2008, 14 September 2009 and 13 September 2010 (after irrigation ended).…”

Section: Soil Sampling and Chemistry Analysesmentioning

confidence: 99%

“…Drip irrigation with its characteristic of applying water at low discharge rate and high frequency over a long period of time can maintain constant and high soil water potential in the root zone and reduce salinity levels in soil water by leaching, particularly near the drip emitters (Keller and Bliesner, 1990;Wang et al, 2011). Among all the factors, drip irrigation scheduling is the most important in salt leaching efficiency.…”

Section: Introductionmentioning

confidence: 99%

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Effects of different drip irrigation regimes on saline–sodic soil nutrients and cotton yield in an arid region of Northwest China

Wang

Kang

Wan

2015

Agricultural Water Management

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a b s t r a c tA field experiment was conducted on a saline wasteland in Xinjiang, Northwest China, during [2008][2009][2010] to evaluate the nutrient behavior and cotton yield during reclamation, applied by different drip irrigation regimes. The experiment included five treatments in which the soil matric potential (SMP) thresholds at 20 cm depth were controlled at −5, −10, −15, −20 and −25 kPa. The results indicated that both soil salinity and sodicity declined significantly at 0-40 cm depth and greater reductions were achieved at higher SMP thresholds (−5 and −10 kPa) than in other treatments. The distributions in soil inorganic nitrogen (N) and available phosphorus (P) and potassium (K) in the soil profile were mainly influenced by the point-source characteristic of drip irrigation, drip irrigation regime and fertilization mode. With the reclamation of both soil chemical and physical properties, there were dramatic increases in soil N, P and K concentration by the end of 2010. The soil nutrient concentrations in N, P and K were all proportional to the SMP thresholds, as higher SMP could result in greater reductions in soil salinity and sodicity. Since crop growth became more vigorous during reclamation, there was also a considerable increase (9.7-31.9%) in soil organic carbon by the end of 2010, and the concentrations were also proportional to SMP thresholds. The highest cotton yield was obtained in S1 (−5 kPa) treatment for both 2009 (2.87 Mg ha −1 ) and 2010 (3.60 Mg ha −1 ). Additionally, the soil C:N ratios were inversely proportional to the SMP thresholds in 2009 and 2010. Considering the soil reclamation efficiency, soil nutrient stocks and cotton yield, SMP thresholds of −5 and −10 kPa could be used as effective measures to trigger irrigation in the first 3 years of saline-sodic soil reclamation in Xinjiang, Northwest China.

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Salt distribution and the growth of cotton under different drip irrigation regimes in a saline area

Cited by 148 publications

References 23 publications

Response of a salt-sensitive plant to processes of soil reclamation in two saline–sodic, coastal soils using drip irrigation with saline water

Response of a salt-sensitive plant to processes of soil reclamation in two saline–sodic, coastal soils using drip irrigation with saline water

Effectiveness of inorganic and organic mulching for soil salinity and sodicity control in a grapevine orchard drip-irrigated with moderately saline waters

Effects of different drip irrigation regimes on saline–sodic soil nutrients and cotton yield in an arid region of Northwest China

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