Effects of Organic Base Fertilizer and Inorganic Topdressing on Alfalfa Productivity and the Soil Bacterial Community in Saline Soil of the Huanghe River Delta in China
Alfalfa (<i>Medicago sativa</i> L.) is an important perennial legume forage that is cultivated in saline soil worldwide. This study aimed to clarify the effects of organic base fertilizer and inorganic topdressing on the productivity of alfalfa growing in saline soil. A three-year field...
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MDPI AG
2022-11-01
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| Series: | Agronomy |
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| Online Access: | https://www.mdpi.com/2073-4395/12/11/2811 |
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| author | Feng He Guoliang Wang Lixue Wang Zhensong Li Zongyong Tong Yu Wang Xianglin Li |
| author_facet | Feng He Guoliang Wang Lixue Wang Zhensong Li Zongyong Tong Yu Wang Xianglin Li |
| author_sort | Feng He |
| collection | DOAJ |
| description | Alfalfa (<i>Medicago sativa</i> L.) is an important perennial legume forage that is cultivated in saline soil worldwide. This study aimed to clarify the effects of organic base fertilizer and inorganic topdressing on the productivity of alfalfa growing in saline soil. A three-year field study was conducted in which alfalfa was grown in the saline soil of the Huanghe River Delta with a control (no fertilizer) and three treatments: organic base fertilizer (Base), topdressing with urea fertilizer (Top), and combined base and topdressing fertilizers (BT). The productivity in the BT and Base treatments was 13.21 and 13.82 t·hm<sup>−2</sup> in 3 years, significantly higher than that in the Top treatment and the control. The increased productivity in the BT and Base treatments were because organic matter promoted root growth of alfalfa seedlings in saline soil. The diversity of the soil bacterial community was not affected by the BT treatment, but the Base treatment increased the abundance of Acidobacteria, and the Top treatment increased the abundance of Gemmatimonadetes. Soil bacteria play an important role in improving the productivity of alfalfa growing in saline soil, and the mechanism by which soil microbes increase yield needs to be further studied. |
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| institution | Directory Open Access Journal |
| issn | 2073-4395 |
| language | English |
| last_indexed | 2024-03-09T18:32:28Z |
| publishDate | 2022-11-01 |
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| series | Agronomy |
| spelling | doaj.art-aa5ccc45b69f41228a55ac3c1fef09bc2023-11-24T07:25:59ZengMDPI AGAgronomy2073-43952022-11-011211281110.3390/agronomy12112811Effects of Organic Base Fertilizer and Inorganic Topdressing on Alfalfa Productivity and the Soil Bacterial Community in Saline Soil of the Huanghe River Delta in ChinaFeng He0Guoliang Wang1Lixue Wang2Zhensong Li3Zongyong Tong4Yu Wang5Xianglin Li6Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, ChinaInstitute of Leisure Agriculture, Shandong Academy of Agricultural Sciences, Jinan 250100, ChinaInstitute of Animal Science and Veterinary Research, Tianjin Academy of Agricultural Sciences, Tianjin 300381, ChinaInstitute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, ChinaInstitute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, ChinaInstitute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, ChinaInstitute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, ChinaAlfalfa (<i>Medicago sativa</i> L.) is an important perennial legume forage that is cultivated in saline soil worldwide. This study aimed to clarify the effects of organic base fertilizer and inorganic topdressing on the productivity of alfalfa growing in saline soil. A three-year field study was conducted in which alfalfa was grown in the saline soil of the Huanghe River Delta with a control (no fertilizer) and three treatments: organic base fertilizer (Base), topdressing with urea fertilizer (Top), and combined base and topdressing fertilizers (BT). The productivity in the BT and Base treatments was 13.21 and 13.82 t·hm<sup>−2</sup> in 3 years, significantly higher than that in the Top treatment and the control. The increased productivity in the BT and Base treatments were because organic matter promoted root growth of alfalfa seedlings in saline soil. The diversity of the soil bacterial community was not affected by the BT treatment, but the Base treatment increased the abundance of Acidobacteria, and the Top treatment increased the abundance of Gemmatimonadetes. Soil bacteria play an important role in improving the productivity of alfalfa growing in saline soil, and the mechanism by which soil microbes increase yield needs to be further studied.https://www.mdpi.com/2073-4395/12/11/2811alfalfasalt stresssoil nutrientsbacterial compositionabove net primary productivity |
| spellingShingle | Feng He Guoliang Wang Lixue Wang Zhensong Li Zongyong Tong Yu Wang Xianglin Li Effects of Organic Base Fertilizer and Inorganic Topdressing on Alfalfa Productivity and the Soil Bacterial Community in Saline Soil of the Huanghe River Delta in China Agronomy alfalfa salt stress soil nutrients bacterial composition above net primary productivity |
| title | Effects of Organic Base Fertilizer and Inorganic Topdressing on Alfalfa Productivity and the Soil Bacterial Community in Saline Soil of the Huanghe River Delta in China |
| title_full | Effects of Organic Base Fertilizer and Inorganic Topdressing on Alfalfa Productivity and the Soil Bacterial Community in Saline Soil of the Huanghe River Delta in China |
| title_fullStr | Effects of Organic Base Fertilizer and Inorganic Topdressing on Alfalfa Productivity and the Soil Bacterial Community in Saline Soil of the Huanghe River Delta in China |
| title_full_unstemmed | Effects of Organic Base Fertilizer and Inorganic Topdressing on Alfalfa Productivity and the Soil Bacterial Community in Saline Soil of the Huanghe River Delta in China |
| title_short | Effects of Organic Base Fertilizer and Inorganic Topdressing on Alfalfa Productivity and the Soil Bacterial Community in Saline Soil of the Huanghe River Delta in China |
| title_sort | effects of organic base fertilizer and inorganic topdressing on alfalfa productivity and the soil bacterial community in saline soil of the huanghe river delta in china |
| topic | alfalfa salt stress soil nutrients bacterial composition above net primary productivity |
| url | https://www.mdpi.com/2073-4395/12/11/2811 |
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