Impact of flue gas desulfurization gypsum and lignite humic acid application on soil organic matter and physical properties of a saline-sodic farmland soil in Eastern China

Jiang, Nan; Chen, Xiaomin; Chen, Can; Lashari, Muhammad Siddique; Deng, Jianqiang; Du, Zhenggang

doi:10.1007/s11368-016-1419-0

Cited by 44 publications

(31 citation statements)

References 42 publications

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“…2012, it is not observed in October 2013. This result was not consistent with those of the studies of Nan et al (2016) and Choudhary et al (2011) who found that FGD-gypsum or gypsum applied to saline-alkali soils increased SOM after 5 and 15 years experiment, respectively. This indicated that it might take a long time to study the effects of FGD-gypsum on SOM in the present experiment.…”

Section: Ec E Phcontrasting

confidence: 99%

Effects of continuous application flue-gas desulfurization gypsum and brackish ice on soil chemical properties and maize growth in a saline soil in coastal area of China

Tao

et al. 2018

Soil Science and Plant Nutrition

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The reclamation potential of applying combined brackish ice and flue-gas desulfurization (FGD) gypsum to a coastal saline soil was evaluated in a raised bed agroecosystem. Experimental plots in the raised bed were exposed to the following six treatments: 0, 4,000, and 8,000 m 3 ha −1 brackish ice mulch with and without FGD-gypsum. Although FGD-gypsum incorporation still increased the electrical conductivity of a saturated soil paste extract (EC e ) in the 0-20 cm soil layer after brackish ice melted in the second year (April 2013), they had not increased soil EC e at harvest especially in the second year. FGD-gypsum incorporation reduced soil pH not only after brackish ice melted in the second year but also at harvest in the first and second years. At harvest in the second year, FGD-gypsum incorporation significantly decreased soil Na adsorption ration (SAR) of the 0-20 cm layer with different volumes of brackish ice compared with the treatments without FGD-gypsum. The incorporation of FGD-gypsum increased the root dry weight per plant compared with the treatment without FGD-gypsum after harvest in the first year. The incorporation of FGD-gypsum increased organic matter in the 0-20 cm soil layer in the raised bed after harvest only in the first year. The application of brackish ice increased the emergence rate of maize in spring. Soil pH in all treatments tended to increase as time increased in the 0-20 and 20-40 cm soil layers in the raised bed. The results of the present study suggest that brackish ice and FGD-gypsum application further improve soil properties and crop growth, which might accelerate the reclamation process of the coastal saline land. ARTICLE HISTORY

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Section: Ec E Phcontrasting

confidence: 99%

Effects of continuous application flue-gas desulfurization gypsum and brackish ice on soil chemical properties and maize growth in a saline soil in coastal area of China

Tao

et al. 2018

Soil Science and Plant Nutrition

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“…Soil degradation, caused by increased salinity and sodicity, reduces the soil organic matter and can weaken the soil due to the unstable structure and low water holding capacity. This degradation can also disrupt the soil aggregates, thus affecting the soil water, nutrients, and plant development [7]. Furthermore, organic matter applied to the salt-affected soils can increase the physical properties, such as the water retention capacity [7].…”

Section: Introductionmentioning

confidence: 99%

Reclaiming Tropical Saline-Sodic Soils with Gypsum and Cow Manure

Filho

Dias

Suddarth

et al. 2019

Water

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Saline-sodic soils are a major impediment for agricultural production in semi-arid regions. Salinity and sodicity drastically reduce agricultural crop yields, damage farm equipment, jeopardize food security, and render soils unusable for agriculture. However, many farmers in developing semi-arid regions cannot afford expensive amendments to reclaim saline-sodic soils. Furthermore, existing research does not cover soil types (e.g., Luvisols and Lixisols) that are found in many semi-arid regions of South America. Therefore, we used percolation columns to evaluate the effect of inexpensive chemical and organic amendments (gypsum and cow manure) on the reclamation of saline-sodic soils in the northeast of Brazil. Soil samples from two layers (0–20 cm and 20–40 cm in depth) were collected and placed in percolation columns. Then, we applied gypsum into the columns, with and without cow manure. The experiment followed a complete randomized design with three replications. The chemical amendment treatments included a control and four combinations of gypsum and cow manure. Percolation columns were subjected to a constant flood layer of 55 mm. We evaluated the effectiveness of sodic soil reclamation treatments via changes in soil hydraulic conductivity, chemical composition (cations and anions), electrical conductivity of the saturated soil-paste extract, pH, and the exchangeable sodium percentage. These results suggest that the combined use of gypsum and cow manure is better to reduce soil sodicity, improve soil chemical properties, and increase water infiltration than gypsum alone. Cow manure at 40 ton ha−1 was better than at 80 ton ha−1 to reduce the sodium adsorption ratio.

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“…al., , 2014Nan et al, 2016). Compared with this phenomenon, our results suggest that cycle irrigation of brackish and freshwater could be a preferable practice for brackish water use.…”

Section: Maize Growth Responses and Yield Attributesmentioning

confidence: 71%

“…Though brackish water has been increasingly used for agricultural irrigation, proper irrigation management of these water resources is necessary to minimize yield reduction. In the research area, the typical irrigation practice is mixing brackish with freshwater to overcome the shortage of freshwater and farmers suffer from more than 30% yield depression (Yao et al, 2013, 2014; Nan et al, 2016). Compared with this phenomenon, our results suggest that cycle irrigation of brackish and freshwater could be a preferable practice for brackish water use.…”

Section: Discussionmentioning

confidence: 99%

Soil Salinity and Maize Growth under Cycle Irrigation in Coastal Soils

Huang

Zhang

Sheng³

et al. 2019

Agronomy Journal

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The coastal regions of eastern China have substantial potential for agricultural production. Freshwater scarcity makes the utilization of plentiful brackish water a vital issue in this area. We aim to assess the effects of cycle irrigation with fresh and brackish water on soil salinity and maize (Zea mays L.). A pot experiment was performed with two typical coastal soils (sandy loam and silt loam) and one local maize cultivar. The maize growing season was divided into three phases (development, mid‐, and later stage). Cycle irrigation was conducted using brackish water (5 g NaCl L−1) during one stage and freshwater for the remaining stages. Cycle irrigation using brackish water at the development stage caused both osmotic and ionic stresses on the maize, leading to significantly‐reduced evapotranspiration (ET), increased stem and leaf Na+/K+ ratio, and stunted growth. The decline of kernel number and 100‐grain weight resulted in severe yield loss. Cycle irrigation with brackish water at the mid‐stage induced less adverse effects on crop growth, while the decrease in kernel number remarkably reduced the yield. Cycle irrigation with brackish water at the later stage minimized the impacts of saline irrigation on soil salinity and maize productivity. Nonetheless, salt leaching by off‐season rainfall and low salinity water and soil salt monitoring should be considered before the next season. Compared to sandy loam soil, silt loam displayed higher soil salinization, and lower maize growth and yield. Additional field research is recommended to facilitate the reliable use of coastal soil and water resources. Core Ideas Cycle irrigation with fresh and brackish water in two coastal soils is studied. Cycle irrigation using brackish water is effective when freshwater is scarce. Brackish water is proposed to be used at maize later reproductive stages. Sandy loam soil is preferable for cycle irrigation compare to silt loam soil.

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Impact of flue gas desulfurization gypsum and lignite humic acid application on soil organic matter and physical properties of a saline-sodic farmland soil in Eastern China

Cited by 44 publications

References 42 publications

Effects of continuous application flue-gas desulfurization gypsum and brackish ice on soil chemical properties and maize growth in a saline soil in coastal area of China

Effects of continuous application flue-gas desulfurization gypsum and brackish ice on soil chemical properties and maize growth in a saline soil in coastal area of China

Reclaiming Tropical Saline-Sodic Soils with Gypsum and Cow Manure

Soil Salinity and Maize Growth under Cycle Irrigation in Coastal Soils

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