The Experts below are selected from a list of 169737 Experts worldwide ranked by ideXlab platform
Yaohu Kang - One of the best experts on this subject based on the ideXlab platform.
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salt leaching and response of dianthus chinensis l to saline Water drip irrigation in two coastal saline soils
Agricultural Water Management, 2019Co-Authors: Chen Zhang, Yaohu Kang, Xunming WangAbstract:Abstract Using of saline Water is becoming an important approach to reclaim and utilize salt-affected soil for landscaping and agricultural purposes. A three-year field experiment was conducted in Hebei Province, North China to cultivate a perennial flower, Dianthus chinensis L., on two coastal saline soils of different textures, silt (27.79 dS·m−1) and sandy loam (27.33 dS·m−1), using the drip irrigation at five levels of Water Salinity (ECi = 0.8, 3.1, 4.7, 6.3 and 7.8 dS·m−1). Effect of Water Salinity on salt distribution in soil profile and plant growth and physiological response were investigated. The irrigation Water Salinity tolerance threshold of D. chinensis in terms of shoot dry weight was also evaluated. Results shown that, after three growing seasons, the highly saline soils reclaimed to 80% retained for all treatments in the third year. The decline of shoot K+ concentration, excessive accumulation of Na+, and concomitant reduction of K+/Na+ ratio were observed with increasing ECi. The irrigation Water Salinity thresholds of D. chinensis, aimed at biological production, are 3.17 dS·m−1 for silt soil and 1.62 dS·m−1 for sandy loam soil; for landscaping purpose, the corresponding values are 5.65 and 6.98 dS·m−1.
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effect of ridge planting on reclamation of coastal saline soil using drip irrigation with saline Water
Catena, 2017Co-Authors: Yaohu Kang, Shuqin Wan, Xiulong Chen, Shiping LiuAbstract:Abstract The ridge planting (RP) system has been widely used in agricultural production and demonstrated as an effective agronomic practice. However, it is not known if it can be used to reclaim saline soil for landscape construction. Our objective was to analyze the soil characteristics and Chinese rose (Rosa chinensis) performance at five irrigation Water Salinity levels of 0.8, 3.1, 4.7, 6.3 and 7.8 dS/m under RP and flat planting (FP) systems in the process of reclamation of coastal saline soils using drip-irrigation. The experiment started in 2012 using two soils (silt and sandy loam) in the coastal saline regions, north of the Bohai Gulf, China. The RP system significantly enhanced salt leaching in total soil profiles, especially the deep soil profile, and improved emergence and survival of Chinese rose compared with FP. The RP system also improved the salt tolerance of Chinese rose to the irrigation Water Salinity level. Thus, the RP system (ridge height
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response of daylily hemerocallis hybridus cv stella de oro to saline Water irrigation in two coastal saline soils
Scientia Horticulturae, 2016Co-Authors: Yaohu Kang, Shuqin WanAbstract:Abstract In order to evaluate the effects of irrigation Water Salinity, applied by drip irrigation, on Daylily (Hemerocallis hybridus cv. ‘Stella de oro’) growth and soil Salinity, a three-year experiment was conducted in coastal saline region in Caofeidian District East China during 2013–2015 in two soils (sandy loam and silt). Five Water Salinity treatments were used with saline Water at electrical conductivity (ECiw) of 0.8, 3.1, 4.7, 6.3, and 7.8 dS/m. The original soil Salinity expressed as electrical conductivity of the saturation paste extract (ECe) was 27–30 dS/m in the 0–95 cm depth. Results showed that drip-irrigation was effective in salt leaching. The average values of soil ECe for five treatments were 1–4 and 2–6 dS/m in 0–35 cm soil profiles of sandy loam and silt soils, respectively, after 18 months with drip irrigation. In 2014–2015, the survival rates were all >93% when irrigated with saline Water at
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response of daylily hemerocallis hybridus cv stella de oro to saline Water irrigation in two coastal saline soils
Scientia Horticulturae, 2016Co-Authors: Xiaobin Li, Yaohu Kang, Jiachong Xu, Na LiAbstract:Abstract In order to evaluate the effects of irrigation Water Salinity, applied by drip irrigation, on Daylily (Hemerocallis hybridus cv. ‘Stella de oro’) growth and soil Salinity, a three-year experiment was conducted in coastal saline region in Caofeidian District East China during 2013–2015 in two soils (sandy loam and silt). Five Water Salinity treatments were used with saline Water at electrical conductivity (ECiw) of 0.8, 3.1, 4.7, 6.3, and 7.8 dS/m. The original soil Salinity expressed as electrical conductivity of the saturation paste extract (ECe) was 27–30 dS/m in the 0–95 cm depth. Results showed that drip-irrigation was effective in salt leaching. The average values of soil ECe for five treatments were 1–4 and 2–6 dS/m in 0–35 cm soil profiles of sandy loam and silt soils, respectively, after 18 months with drip irrigation. In 2014–2015, the survival rates were all >93% when irrigated with saline Water at
Ahmad Bakour - One of the best experts on this subject based on the ideXlab platform.
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effects of saline Water irrigation on soil Salinity and yield of summer maize zea mays l in subsurface drainage system
Agricultural Water Management, 2017Co-Authors: Genxiang Feng, Zhanyu Zhang, Peirong Lu, Ahmad BakourAbstract:Sustainable development of saline Water irrigation was restricted by salt accumulation in the soil profile without appropriate salt discharging measures. A two year study was conducted in 2014 and 2015 to identify the effect of saline Water irrigation on soil salt and maize yield under subsurface drainage system. The treatments of this study comprised three levels of Water Salinity with 0.78, 3.75, and 6.25dSm−1 (S1–S3) and three levels of subsurface drainage depth with no subsurface drainage, drain depth of 0.8m and 1.2m (D0–D2). Results indicated that the average salt content within the root zone was in the order of D0>D2>D1. No salt accumulation occurred during the two growing seasons under D1, but there was salt accumulation under D2S3. Soil desalinization efficiency reduced with the increasing of irrigation Water Salinity, and the average desalinization efficiency for D1 was higher than that of D0 and D2. Maize yield and Water use efficiency decreased with the increase of Water Salinity. The yield decreased by 2.08–3.01% for every 1dSm−1 increase in Salinity level of irrigation Water under D1, and 3.53–3.93% for every 1dSm−1 under D2. The effects of Water Salinity and drainage depth on maize yield and WUE were significant (p<0.05) in the two growing seasons. From the view points of relative yield and soil salt balance, it can be recognized even as the Salinity level of irrigation Water is as high as 6.25dSm−1, saline Water can be applied to irrigate maize under drain depth of 0.8m.
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effects of saline Water irrigation on soil Salinity and yield of summer maize zea mays l in subsurface drainage system
Agricultural Water Management, 2017Co-Authors: Genxiang Feng, Zhanyu Zhang, Changyu Wan, Ahmad BakourAbstract:Abstract Sustainable development of saline Water irrigation was restricted by salt accumulation in the soil profile without appropriate salt discharging measures. A two year study was conducted in 2014 and 2015 to identify the effect of saline Water irrigation on soil salt and maize yield under subsurface drainage system. The treatments of this study comprised three levels of Water Salinity with 0.78, 3.75, and 6.25 dS m −1 (S1–S3) and three levels of subsurface drainage depth with no subsurface drainage, drain depth of 0.8 m and 1.2 m (D0–D2). Results indicated that the average salt content within the root zone was in the order of D0 > D2 > D1. No salt accumulation occurred during the two growing seasons under D1, but there was salt accumulation under D2S3. Soil desalinization efficiency reduced with the increasing of irrigation Water Salinity, and the average desalinization efficiency for D1 was higher than that of D0 and D2. Maize yield and Water use efficiency decreased with the increase of Water Salinity. The yield decreased by 2.08–3.01% for every 1 dS m −1 increase in Salinity level of irrigation Water under D1, and 3.53–3.93% for every 1 dS m −1 under D2. The effects of Water Salinity and drainage depth on maize yield and WUE were significant (p −1 , saline Water can be applied to irrigate maize under drain depth of 0.8 m.
Shuqin Wan - One of the best experts on this subject based on the ideXlab platform.
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effect of ridge planting on reclamation of coastal saline soil using drip irrigation with saline Water
Catena, 2017Co-Authors: Yaohu Kang, Shuqin Wan, Xiulong Chen, Shiping LiuAbstract:Abstract The ridge planting (RP) system has been widely used in agricultural production and demonstrated as an effective agronomic practice. However, it is not known if it can be used to reclaim saline soil for landscape construction. Our objective was to analyze the soil characteristics and Chinese rose (Rosa chinensis) performance at five irrigation Water Salinity levels of 0.8, 3.1, 4.7, 6.3 and 7.8 dS/m under RP and flat planting (FP) systems in the process of reclamation of coastal saline soils using drip-irrigation. The experiment started in 2012 using two soils (silt and sandy loam) in the coastal saline regions, north of the Bohai Gulf, China. The RP system significantly enhanced salt leaching in total soil profiles, especially the deep soil profile, and improved emergence and survival of Chinese rose compared with FP. The RP system also improved the salt tolerance of Chinese rose to the irrigation Water Salinity level. Thus, the RP system (ridge height
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response of daylily hemerocallis hybridus cv stella de oro to saline Water irrigation in two coastal saline soils
Scientia Horticulturae, 2016Co-Authors: Yaohu Kang, Shuqin WanAbstract:Abstract In order to evaluate the effects of irrigation Water Salinity, applied by drip irrigation, on Daylily (Hemerocallis hybridus cv. ‘Stella de oro’) growth and soil Salinity, a three-year experiment was conducted in coastal saline region in Caofeidian District East China during 2013–2015 in two soils (sandy loam and silt). Five Water Salinity treatments were used with saline Water at electrical conductivity (ECiw) of 0.8, 3.1, 4.7, 6.3, and 7.8 dS/m. The original soil Salinity expressed as electrical conductivity of the saturation paste extract (ECe) was 27–30 dS/m in the 0–95 cm depth. Results showed that drip-irrigation was effective in salt leaching. The average values of soil ECe for five treatments were 1–4 and 2–6 dS/m in 0–35 cm soil profiles of sandy loam and silt soils, respectively, after 18 months with drip irrigation. In 2014–2015, the survival rates were all >93% when irrigated with saline Water at
Genxiang Feng - One of the best experts on this subject based on the ideXlab platform.
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effects of saline Water irrigation on soil Salinity and yield of summer maize zea mays l in subsurface drainage system
Agricultural Water Management, 2017Co-Authors: Genxiang Feng, Zhanyu Zhang, Peirong Lu, Ahmad BakourAbstract:Sustainable development of saline Water irrigation was restricted by salt accumulation in the soil profile without appropriate salt discharging measures. A two year study was conducted in 2014 and 2015 to identify the effect of saline Water irrigation on soil salt and maize yield under subsurface drainage system. The treatments of this study comprised three levels of Water Salinity with 0.78, 3.75, and 6.25dSm−1 (S1–S3) and three levels of subsurface drainage depth with no subsurface drainage, drain depth of 0.8m and 1.2m (D0–D2). Results indicated that the average salt content within the root zone was in the order of D0>D2>D1. No salt accumulation occurred during the two growing seasons under D1, but there was salt accumulation under D2S3. Soil desalinization efficiency reduced with the increasing of irrigation Water Salinity, and the average desalinization efficiency for D1 was higher than that of D0 and D2. Maize yield and Water use efficiency decreased with the increase of Water Salinity. The yield decreased by 2.08–3.01% for every 1dSm−1 increase in Salinity level of irrigation Water under D1, and 3.53–3.93% for every 1dSm−1 under D2. The effects of Water Salinity and drainage depth on maize yield and WUE were significant (p<0.05) in the two growing seasons. From the view points of relative yield and soil salt balance, it can be recognized even as the Salinity level of irrigation Water is as high as 6.25dSm−1, saline Water can be applied to irrigate maize under drain depth of 0.8m.
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effects of saline Water irrigation on soil Salinity and yield of summer maize zea mays l in subsurface drainage system
Agricultural Water Management, 2017Co-Authors: Genxiang Feng, Zhanyu Zhang, Changyu Wan, Ahmad BakourAbstract:Abstract Sustainable development of saline Water irrigation was restricted by salt accumulation in the soil profile without appropriate salt discharging measures. A two year study was conducted in 2014 and 2015 to identify the effect of saline Water irrigation on soil salt and maize yield under subsurface drainage system. The treatments of this study comprised three levels of Water Salinity with 0.78, 3.75, and 6.25 dS m −1 (S1–S3) and three levels of subsurface drainage depth with no subsurface drainage, drain depth of 0.8 m and 1.2 m (D0–D2). Results indicated that the average salt content within the root zone was in the order of D0 > D2 > D1. No salt accumulation occurred during the two growing seasons under D1, but there was salt accumulation under D2S3. Soil desalinization efficiency reduced with the increasing of irrigation Water Salinity, and the average desalinization efficiency for D1 was higher than that of D0 and D2. Maize yield and Water use efficiency decreased with the increase of Water Salinity. The yield decreased by 2.08–3.01% for every 1 dS m −1 increase in Salinity level of irrigation Water under D1, and 3.53–3.93% for every 1 dS m −1 under D2. The effects of Water Salinity and drainage depth on maize yield and WUE were significant (p −1 , saline Water can be applied to irrigate maize under drain depth of 0.8 m.
Mohammad Radwanur Rahman Talukder - One of the best experts on this subject based on the ideXlab platform.
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the effect of drinking Water Salinity on blood pressure in young adults of coastal bangladesh
Environmental Pollution, 2016Co-Authors: Mohammad Radwanur Rahman Talukder, Shannon Rutherford, Dung Phung, Mohammad Zahirul Islam, Cordia ChuAbstract:More than 35 million people in coastal Bangladesh are vulnerable to increasing freshWater salinization. This will continue to affect more people and to a greater extent as climate change projections are realised in this area in the future. However the evidence for health effects of consuming high Salinity Water is limited. This research examined the association between drinking Water Salinity and blood pressure in young adults in coastal Bangladesh. We conducted a cross-sectional study during May-June 2014 in a rural coastal sub-district of Bangladesh. Data on blood pressure (BP) and Salinity of potable Water sources was collected from 253 participants aged 19-25 years. A linear regression method was used to examine the association between Water Salinity exposure categories and systolic BP (SBP) and diastolic BP (DBP) level. Sixty five percent of the study population were exposed to highly saline drinking Water above the Bangladesh standard (600 mg/L and above). Multivariable linear regression analyses identified that compared to the low Water Salinity exposure category ( 600 mg/L), had statistically significantly higher SBP (B 3.46, 95% CI 0.75, 6.17; p = 0.01) and DBP (B 2.77, 95% CI 0.31, 5.24; p = 0.03). Our research shows that elevated Salinity in drinking Water is associated with higher BP in young coastal populations. Blood pressure is an important risk factor of hypertension and cardiovascular diseases. Given the extent of salinization of freshWater in many low-lying countries including in Bangladesh, and the likely exacerbation related to climate change-induced sea level rise, implementation of preventative strategies through dietary interventions along with promotion of low saline drinking Water must be a priority in these settings.
