Increasing the okra salt threshold value with biochar amendments
Soil salinity is a severe worldwide environmental problem that adversely affects soil properties and the crop growth such as okra. We hypothesized that biochar soil amendments could increase the okra salt threshold, alleviate salt stress and improve soil productivity. In this study, a pot experiment...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Taylor & Francis Group
2018-01-01
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| Series: | Journal of Plant Interactions |
| Subjects: | |
| Online Access: | http://dx.doi.org/10.1080/17429145.2017.1418914 |
| _version_ | 1828526061920452608 |
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| author | Nazar A. Elshaikh Liu Zhipeng She Dongli Luis Carlos Timm |
| author_facet | Nazar A. Elshaikh Liu Zhipeng She Dongli Luis Carlos Timm |
| author_sort | Nazar A. Elshaikh |
| collection | DOAJ |
| description | Soil salinity is a severe worldwide environmental problem that adversely affects soil properties and the crop growth such as okra. We hypothesized that biochar soil amendments could increase the okra salt threshold, alleviate salt stress and improve soil productivity. In this study, a pot experiment was conducted to investigate whether biochar could ameliorate the effects of salinity on okra plants. Three biochar amendment (BA) soil applications (0%, 5% and 10% by mass of soil) were considered for seven irrigation water salinity levels (0.75, 1.0, 2.0, 4.0, 5.0, 6.0 and 7.0 dS m−1) in a randomized block design with three replications. The Maas and Hoffman salt tolerance model was used to evaluate the effects of BA on okra plant growth parameters (e.g. yield, biomass) and water use efficiency for each salinity treatment. The results showed that increasing the soil salinity levels caused significant decreases in plant yields and yield components. However, biochar application rates of 5% and 10% increased the okra threshold by 19.7% and 81.2%, respectively, compared to the control (0%). The 10% biochar application rate also resulted in the greatest okra plant growth and increased yield, indicating that the effects of salt stress were ameliorated; moreover, the soil bulk density was decreased, and the water content was increased. Hence, biochar soil amendments could be considered as an important agronomic practice that could potentially overcome the adverse effects of salt stress. |
| first_indexed | 2024-12-11T21:18:03Z |
| format | Article |
| id | doaj.art-57c670e918124e48817193b1c9a535b2 |
| institution | Directory Open Access Journal |
| issn | 1742-9145 1742-9153 |
| language | English |
| last_indexed | 2024-12-11T21:18:03Z |
| publishDate | 2018-01-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Journal of Plant Interactions |
| spelling | doaj.art-57c670e918124e48817193b1c9a535b22022-12-22T00:50:33ZengTaylor & Francis GroupJournal of Plant Interactions1742-91451742-91532018-01-01131516310.1080/17429145.2017.14189141418914Increasing the okra salt threshold value with biochar amendmentsNazar A. Elshaikh0Liu Zhipeng1She Dongli2Luis Carlos Timm3Hohai UniversityNanjing Agricultural UniversityHohai UniversityFaculty of Agronomy, Federal University of PelotasSoil salinity is a severe worldwide environmental problem that adversely affects soil properties and the crop growth such as okra. We hypothesized that biochar soil amendments could increase the okra salt threshold, alleviate salt stress and improve soil productivity. In this study, a pot experiment was conducted to investigate whether biochar could ameliorate the effects of salinity on okra plants. Three biochar amendment (BA) soil applications (0%, 5% and 10% by mass of soil) were considered for seven irrigation water salinity levels (0.75, 1.0, 2.0, 4.0, 5.0, 6.0 and 7.0 dS m−1) in a randomized block design with three replications. The Maas and Hoffman salt tolerance model was used to evaluate the effects of BA on okra plant growth parameters (e.g. yield, biomass) and water use efficiency for each salinity treatment. The results showed that increasing the soil salinity levels caused significant decreases in plant yields and yield components. However, biochar application rates of 5% and 10% increased the okra threshold by 19.7% and 81.2%, respectively, compared to the control (0%). The 10% biochar application rate also resulted in the greatest okra plant growth and increased yield, indicating that the effects of salt stress were ameliorated; moreover, the soil bulk density was decreased, and the water content was increased. Hence, biochar soil amendments could be considered as an important agronomic practice that could potentially overcome the adverse effects of salt stress.http://dx.doi.org/10.1080/17429145.2017.1418914Irrigation water qualitysalt stresssalt tolerance modelsoil salinityyield |
| spellingShingle | Nazar A. Elshaikh Liu Zhipeng She Dongli Luis Carlos Timm Increasing the okra salt threshold value with biochar amendments Journal of Plant Interactions Irrigation water quality salt stress salt tolerance model soil salinity yield |
| title | Increasing the okra salt threshold value with biochar amendments |
| title_full | Increasing the okra salt threshold value with biochar amendments |
| title_fullStr | Increasing the okra salt threshold value with biochar amendments |
| title_full_unstemmed | Increasing the okra salt threshold value with biochar amendments |
| title_short | Increasing the okra salt threshold value with biochar amendments |
| title_sort | increasing the okra salt threshold value with biochar amendments |
| topic | Irrigation water quality salt stress salt tolerance model soil salinity yield |
| url | http://dx.doi.org/10.1080/17429145.2017.1418914 |
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