Optimizing Gypsum Levels for Amelioration of Sodic Soils to Enhance Grain Yield and Quality of Rice (<i>Oryza sativa</i>L.)

Singh, Y.P.; Singh, R. K.; Sharma, Divakar; Mishra, Vinay Kumar; Arora, Sanjay

doi:10.5958/0974-0228.2016.00005.0

Cited by 12 publications

(8 citation statements)

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“…The maximum decrease in the ESP in 50 GR MG was ascribed to its increased solubility and release of Ca 2+ ions for exchange reaction, which can be shown as: Singh et al (2016) also reported a decrease of ESP from 89 to 34.4 cmole kg À1 with the application of 50 GR GYP. A significant reduction in soil ESP with respect to initial ESP by the application of GYP had also been observed in previous studies (Chaganti et al, 2015;Gharaibeh et al, 2011;Jalali & Ranjbar, 2009).…”

Section: Effect Of Mg On Esp Cross and Dispersive Chargementioning

confidence: 83%

“…We found decreased soil pH, BD, dispersion ratio, and SAR to be contributing factors for enhanced grain yield. Singh et al (2016) had earlier reported increased rice yield with increasing levels of GYP, which was highest at 50 GR GYP and the reason ascribed to the decreased soil pH from 10.5 to 8.91. This was also found to be in agreement with earlier findings (Mishra et al, 2019), where the lowest soil pH was recorded in the 50 GR GYP, and the crop yield response was directly related to reduction in soil pH, BD, and dispersion ratio.…”

Section: Discussionmentioning

confidence: 95%

“…The Na + ion dominates both at exchange sites and soil solution in degraded sodic soils, resulting in higher ESP, and causing the structural degradation of soil through swelling and dispersion phenomenon. The maximum decrease in the ESP in 50 GR MG was ascribed to its increased solubility and release of Ca 2+ ions for exchange reaction, which can be shown as:

([], Soil Exchange Complex) \begin{matrix} true \\ {Na}^{+} \\ {Na}^{+} \end{matrix} goodbreak+ {CaSO}_{4} \cdot 2 H_{2} normalO \to ([], Exchange Complex) \begin{matrix} true \\ {Ca}^{2 +} \\ {Ca}^{2 +} \end{matrix} goodbreak+ 2 {Na}_{+} goodbreak+ {SO}_{4}^{2} goodbreak- ((), Marine gypsum)

Singh et al (2016) also reported a decrease of ESP from 89 to 34.4 cmole kg −1 with the application of 50 GR GYP. A significant reduction in soil ESP with respect to initial ESP by the application of GYP had also been observed in previous studies (Chaganti et al, 2015; Gharaibeh et al, 2011; Jalali & Ranjbar, 2009).…”

Section: Discussionmentioning

confidence: 99%

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Utilization of marine gypsum as an alternative to mineral gypsum in the reclamation of degraded sodic soil and as a means of enhancing crop productivity

et al. 2022

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For sustainable management of degraded sodic soils, mineral gypsum (GYP) has been widely used, but supplies are limited, industrialization, and urbanization have thwarted its use in agriculture. Therefore, there is a need to develop alternative ameliorants to GYP. We conducted a field experiment on degraded sodic soil (pH‐10.2) using marine gypsum (MG), a waste/by‐product of the edible salt (NaCl) manufacturing process. Based on gypsum requirement (GR) of soil, efficacies of GYP and MG, at equivalent doses, were compared for reclamation of sodic soil using treatments: control, 50 GR GYP, 50 GR MG, 25 GR GYP, 25 GR MG, and 25 GR GYP + 25 GR MG. The results showed a significant decrease in soil pH following appliation of 50 GR MG compared with other treatments. The reduction in exchangeable sodium percentage was found and to be highest (50.78%) in 50 GR MG among all treatments but statistically identical to 50 GR GYP. The net dispersive charge we noted was a minimum of 4.04 cmol kg−1 for 50 GR MG but was on par with 50GR GYP and 25GR GYP + 25GR MG. The presence of MgCl2, NaCl, and KCl as impurities in marine gypsum assisted its dissolution by increasing the ionic strength of solution and facilitated Ca2+ release for exchange reactions. We found the average yield of rice and wheat to be statistically similar for applications of 50 GR MG, 50 GR GYP, and 25 GR GYP + 25 GR MG. Thus, our study suggests that MG could effectively be used as an alternative ameliorant for the reclamation of degraded sodic soil without compromising crop yields, under scarce availability of GYP.

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Section: Effect Of Mg On Esp Cross and Dispersive Chargementioning

confidence: 83%

Section: Discussionmentioning

confidence: 95%

([], Soil Exchange Complex) \begin{matrix} true \\ {Na}^{+} \\ {Na}^{+} \end{matrix} goodbreak+ {CaSO}_{4} \cdot 2 H_{2} normalO \to ([], Exchange Complex) \begin{matrix} true \\ {Ca}^{2 +} \\ {Ca}^{2 +} \end{matrix} goodbreak+ 2 {Na}_{+} goodbreak+ {SO}_{4}^{2} goodbreak- ((), Marine gypsum)

Section: Discussionmentioning

confidence: 99%

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Utilization of marine gypsum as an alternative to mineral gypsum in the reclamation of degraded sodic soil and as a means of enhancing crop productivity

et al. 2022

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“…Hence, higher productivity (in terms of yields), profitability (GR and NR) and improved fodder quality traits (lowered NDF, ADF and HCN) in the second year. The application of different amendments might have reduced soil pH, ESP, bulk density and increased infiltration rate, hydraulic conductivity, calcium, magnesium, organic carbon and available N, which resulted in better root development, enhanced leaf area, higher photoassimilates and, thereby, more dry matter accumulation, better growth and, ultimately, productivity [20,[48][49][50][51][52]. The efficacy of gypsum and pressmud in ameliorating the adverse effects of brackish water and increasing crop yields was also reported by Choudhary et al [53] and Sheoran et al [15,[17][18][19].…”

Section: Productivity and Profitabilitymentioning

confidence: 99%

Effects of Sodic Water Irrigation and Neutralizing Amendments on Physiological, Biochemical, and Nutritional Quality Traits of Fodder Sorghum

et al. 2023

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This study was conducted at two farmers’ fields to assess the production potential and quality of summer fodder sorghum intervened between the rice–wheat cropping sequences (RWCS) on high residual alkalinity, i.e., residual sodium carbonate (RSC) water irrigation-induced sodic soil. The treatments were comprised of two field sites having different residual alkalinity [RSC~5 me L−1 (RSC–1) and ~7 me L−1 (RSC–2) water irrigation in main plots, four neutralization strategies, i.e., control/unamended condition (N0), gypsum @ 7.5 t ha−1 (N1), pressmud @ 10 t ha−1 (N2) and gypsum @ 3.75 t ha−1 + pressmud @ 5 t ha−1 (N3) in sub plots and two varietal sequences of RWCS, i.e., salt tolerant varieties (CSR 30 basmati fb KRL 210) and traditionally grown varieties (PB 1121 fb HD 2967) of rice and wheat as sub–sub plots. Sorghum cv. Sugargraze (Advanta Company) was grown after the harvesting of wheat and cut for green fodder before transplanting rice during both years. Sorghum physiological and biochemical traits [relative water content (RWC), total chlorophyll content, photosynthetic rate (Pn), stomatal conductance (gS), transpiration rate (E), chlorophyll fluorescence (Fv/Fm), photon quantum yield [Y (II)] and K/Na ratio]; fodder quality traits [Crude protein (CP), and ether extract (EE)] and productivity [green fodder yield (GFY), dry matter yield, CP yield, EE yield and ash yield) and profitability (gross returns, net returns, benefit–cost ratio) significantly decreased with the increase in irrigation water RSC from 5 to 7 me L−1. Proline, total soluble sugar (TSS), total soluble protein (TSP), dry matter (DM), ash, neutral detergent fibre (NDF), acid detergent fibre (ADF), acid detergent lignin (ADL), neutral detergent insoluble CP (NDICP) and acid detergent insoluble CP (ADICP) decreased with increasing RSC of irrigation water. Sodicity neutralization considerably improved sorghum physiological adaptation mechanisms, fodder quality, productivity and profitability. The introduction of summer fodder sorghum between RWCS resulted in additional net returns (NR) (INR 13.64 to 20.79 × 103 ha–1). Our results indicate that pressmud proved a feasible alternative to replace and/or reduce the quantity of gypsum required for neutralization of RSC water irrigation. Growing summer fodder sorghum between RWCS along with neutralization of RSC water irrigation can increase the availability of quality green fodder during lean period and also increase the profitability of the rice–wheat cropping system in high residual alkalinity water irrigation conditions.

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“…Sodic soils are generally ameliorated by providing calcium (Ca 2+ ) to replace excess Na + in the cation exchange complex (Hafez et al, 2015;Luo et al, 2015;Singh et al, 2016). The replaced Na + is directly leached by the irrigation from the rhizosphere zone.…”

Section: Introductionmentioning

confidence: 99%

Effect of Gypsum, Sulfuric Acid, Nano-Zeolite Application on Saline-Sodic Soil Properties and Wheat Productivity under Different Tillage Types

Kheir

Shabana

Seleiman

2018

Journal of Soil Sciences and Agricultural Engineering

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Soil degradation due to soil salinity and sodicity is considered a serious concern in arid and semiarid ecosystems. Due to arid climate even, normal soils are converted to saline-sodic soils. Recently, reduced tillage proved successfully increasing soil organic matter contributing to soil carbon sequestration leading to improvements in soil physical and chemical properties. However, exploring effect of reduced tillage in saline sodic soils, even under amendments application has less attention so far. Therefore, the present study was conducted to investigate the combined effects of inorganic soil amendments (Nano zeolite, sulphuric acid and gypsum) and tillage systems (reduced and deep tillage) on saline-sodic soil physical and chemical properties and wheat productivity. Deep tillage with sulphuric acid application significantly reduced soil electrical conductivity (EC), exchangeable sodium percentage (ESP), penetration resistance (PR) and bulk density (Bd) and increased soil hydraulic conductivity (HC), mean weight diameter (MWD) and aggregation index (AI) compared to control. Deep tillage showed a significant improvement of saline-sodic soils, despite increasing SOC with reduced tillage. Moreover, sulphuric acid, gypsum and Nano-zeolite applications with deep tillage increased wheat grain yield significantly compared to control. Nano-zeolite application gave the superiority in increasing soil organic carbon compared with sulphuric and gypsum, enhancing wheat productivity to be close to yield under gypsum application without significant differences. Nevertheless, application of Nano-zeolite in improving saline sodic soils not preferable economically compared with sulphuric acid and gypsum. In conclusion, sulphuric acid, gypsum applications in combination with deep tillage improved physical and chemical properties of saline-sodic soils, and consequently enhanced growth and yield of wheat, confirming the importance of deep tillage in reclaiming saline-sodic soils compared with reduced tillage.

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Optimizing Gypsum Levels for Amelioration of Sodic Soils to Enhance Grain Yield and Quality of Rice (Oryza sativaL.)

Cited by 12 publications

References 0 publications

Utilization of marine gypsum as an alternative to mineral gypsum in the reclamation of degraded sodic soil and as a means of enhancing crop productivity

Utilization of marine gypsum as an alternative to mineral gypsum in the reclamation of degraded sodic soil and as a means of enhancing crop productivity

Effects of Sodic Water Irrigation and Neutralizing Amendments on Physiological, Biochemical, and Nutritional Quality Traits of Fodder Sorghum

Effect of Gypsum, Sulfuric Acid, Nano-Zeolite Application on Saline-Sodic Soil Properties and Wheat Productivity under Different Tillage Types

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