Environmental and economic benefits of saline-sodic soil reclamation using low-quality water and soil amendments in conjunction with a rice-wheat cropping system
A combination of appropriate crop rotation(s) and management interventions has the potential to transform saline-sodic soil and water resources from an environmental burden into an economic asset. We carried out 2-year field studies in the Indus Basin of Pakistan to evaluate different irrigation and...
| Main Authors: | , , , , |
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| Format: | Journal Article |
| Language: | Inglés |
| Published: |
Wiley
2009
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10568/40646 |
| _version_ | 1855516029179920384 |
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| author | Murtaza, G. Ghafoor, A. Owens, G. Qadir, Manzoor Kahlon, U.Z. |
| author_browse | Ghafoor, A. Kahlon, U.Z. Murtaza, G. Owens, G. Qadir, Manzoor |
| author_facet | Murtaza, G. Ghafoor, A. Owens, G. Qadir, Manzoor Kahlon, U.Z. |
| author_sort | Murtaza, G. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | A combination of appropriate crop rotation(s) and management interventions has the potential to transform saline-sodic soil and water resources from an environmental burden into an economic asset. We carried out 2-year field studies in the Indus Basin of Pakistan to evaluate different irrigation and soil management options of using saline-sodic waters (SSW) and soils for reclamation and for growing salt-tolerant cultivars of rice (SSRI-8) and wheat (SIS-32). These soils have variable levels of salinity and sodicity (ECe 9-44 dS m)1 and SAR 83-319). The treatments on both the sites were the same and consisted of: (1) Irrigation with SSW, (2) Irrigation with freshwater (FW), (3) Soil application of gypsum at 100 % gypsum requirement of soil + SSW (G + SSW), (4) G + one irrigation with SSW and one with FW (G + 1SSW + 1FW), (5) G + two irrigations with SSW and one with FW (G + 2SSW + 1FW), (6) Farm manure at 25 Mg ha)1 each year before rice + one irrigation with SSW and one with (FW FM + 1SSW + 1FW) and (7) FM + two irrigations with SSW and one with FW (FM + 2SSW + 1FW). Rice was grown as the first crop. After harvesting final wheat crop (fourth in sequence), maximum decrease in bulk density and increase in infiltration rate was observed with G + 1SSW + 1FW while FM + 1SSW + 1FW treatment showed higher decrease in pHs and ECe. Significantly the highest decrease in SAR occurred at both sites with G + 1SSW + 1FW. Maximum yields of rice and wheat were generally observed with G + 1SSW + 1FW. The crop yield and economic benefits with treatments showed a positive correlation with that of improvement in soil physical and chemical properties. Overall, the greatest net benefit was obtained from G + 1SSW + 1FW treatment. We also found that the farmers' management skills were crucial in the overall success in improving crop yields during reclamation of saline-sodic soils. Based on the results of this study, we propose that SSW could be used to reclaim saline-sodic soils by using a rice-wheat rotation and a site-specific combination of soil amendments and water application strategies. |
| format | Journal Article |
| id | CGSpace40646 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2009 |
| publishDateRange | 2009 |
| publishDateSort | 2009 |
| publisher | Wiley |
| publisherStr | Wiley |
| record_format | dspace |
| spelling | CGSpace406462025-06-17T08:23:21Z Environmental and economic benefits of saline-sodic soil reclamation using low-quality water and soil amendments in conjunction with a rice-wheat cropping system Murtaza, G. Ghafoor, A. Owens, G. Qadir, Manzoor Kahlon, U.Z. cropping systems crop rotation crop management rice wheat plant growth saline sodic soils soil reclamation soil management soil sampling soil properties leaching irrigation water water quality infiltration experiments irrigated farming A combination of appropriate crop rotation(s) and management interventions has the potential to transform saline-sodic soil and water resources from an environmental burden into an economic asset. We carried out 2-year field studies in the Indus Basin of Pakistan to evaluate different irrigation and soil management options of using saline-sodic waters (SSW) and soils for reclamation and for growing salt-tolerant cultivars of rice (SSRI-8) and wheat (SIS-32). These soils have variable levels of salinity and sodicity (ECe 9-44 dS m)1 and SAR 83-319). The treatments on both the sites were the same and consisted of: (1) Irrigation with SSW, (2) Irrigation with freshwater (FW), (3) Soil application of gypsum at 100 % gypsum requirement of soil + SSW (G + SSW), (4) G + one irrigation with SSW and one with FW (G + 1SSW + 1FW), (5) G + two irrigations with SSW and one with FW (G + 2SSW + 1FW), (6) Farm manure at 25 Mg ha)1 each year before rice + one irrigation with SSW and one with (FW FM + 1SSW + 1FW) and (7) FM + two irrigations with SSW and one with FW (FM + 2SSW + 1FW). Rice was grown as the first crop. After harvesting final wheat crop (fourth in sequence), maximum decrease in bulk density and increase in infiltration rate was observed with G + 1SSW + 1FW while FM + 1SSW + 1FW treatment showed higher decrease in pHs and ECe. Significantly the highest decrease in SAR occurred at both sites with G + 1SSW + 1FW. Maximum yields of rice and wheat were generally observed with G + 1SSW + 1FW. The crop yield and economic benefits with treatments showed a positive correlation with that of improvement in soil physical and chemical properties. Overall, the greatest net benefit was obtained from G + 1SSW + 1FW treatment. We also found that the farmers' management skills were crucial in the overall success in improving crop yields during reclamation of saline-sodic soils. Based on the results of this study, we propose that SSW could be used to reclaim saline-sodic soils by using a rice-wheat rotation and a site-specific combination of soil amendments and water application strategies. 2009-04 2014-06-13T14:48:06Z 2014-06-13T14:48:06Z Journal Article https://hdl.handle.net/10568/40646 en Limited Access Wiley Murtaza, G.; Ghafoor, A.; Owens, G.; Qadir, Manzoor; Kahlon, U. Z. 2009. Environmental and economic benefits of saline-sodic soil reclamation using low-quality water and soil amendments in conjunction with a rice-wheat cropping system. Journal of Agronomy and Crop Science, 195:124-136. doi: https://doi.org/10.1111/j.1439-037X.2008.00350.x |
| spellingShingle | cropping systems crop rotation crop management rice wheat plant growth saline sodic soils soil reclamation soil management soil sampling soil properties leaching irrigation water water quality infiltration experiments irrigated farming Murtaza, G. Ghafoor, A. Owens, G. Qadir, Manzoor Kahlon, U.Z. Environmental and economic benefits of saline-sodic soil reclamation using low-quality water and soil amendments in conjunction with a rice-wheat cropping system |
| title | Environmental and economic benefits of saline-sodic soil reclamation using low-quality water and soil amendments in conjunction with a rice-wheat cropping system |
| title_full | Environmental and economic benefits of saline-sodic soil reclamation using low-quality water and soil amendments in conjunction with a rice-wheat cropping system |
| title_fullStr | Environmental and economic benefits of saline-sodic soil reclamation using low-quality water and soil amendments in conjunction with a rice-wheat cropping system |
| title_full_unstemmed | Environmental and economic benefits of saline-sodic soil reclamation using low-quality water and soil amendments in conjunction with a rice-wheat cropping system |
| title_short | Environmental and economic benefits of saline-sodic soil reclamation using low-quality water and soil amendments in conjunction with a rice-wheat cropping system |
| title_sort | environmental and economic benefits of saline sodic soil reclamation using low quality water and soil amendments in conjunction with a rice wheat cropping system |
| topic | cropping systems crop rotation crop management rice wheat plant growth saline sodic soils soil reclamation soil management soil sampling soil properties leaching irrigation water water quality infiltration experiments irrigated farming |
| url | https://hdl.handle.net/10568/40646 |
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