Combination of <i>Bacillus</i> and Low Fertigation Input Promoted the Growth and Productivity of Chinese Cabbage and Enriched Beneficial Rhizosphere Bacteria <i>Lechevalieria</i>
Long-term overfertilization increases soil salinity and disease occurrence and reduces crop yield. Integrated application of microbial agents with low fertigation input might be a sustainable and cost-effective strategy. Herein, the promoting effects of <i>Bacillus velezensis</i> B006 on...
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MDPI AG
2023-08-01
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| Series: | Biology |
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| author | Shi-Chang Zhang Yu-Lu Zhang Xiao-Jing Guo Ming Luo Shi-Dong Li Rong-Jun Guo |
| author_facet | Shi-Chang Zhang Yu-Lu Zhang Xiao-Jing Guo Ming Luo Shi-Dong Li Rong-Jun Guo |
| author_sort | Shi-Chang Zhang |
| collection | DOAJ |
| description | Long-term overfertilization increases soil salinity and disease occurrence and reduces crop yield. Integrated application of microbial agents with low fertigation input might be a sustainable and cost-effective strategy. Herein, the promoting effects of <i>Bacillus velezensis</i> B006 on the growth of Chinese cabbage under different fertigation conditions in field trials were studied and the underlying mechanisms were revealed. In comparison with normal fertigation (water potential of −30 kPa and soluble N, P, K of 29.75, 8.26, 21.48 Kg hm<sup>−2</sup>) without B006 application, the combination of <i>B. velezensis</i> B006 and reduced fertigation input (−50 kPa and N, P, K of 11.75, 3.26, 6.48 Kg hm<sup>−2</sup>) promoted cabbage growth and root development, restrained the occurrence of soft rot disease, and improved the yield. High-performance liquid chromatography (HPLC) analyses indicated that B006 application promoted the production of indole-3-acetic acid and salicylic acid in cabbage roots, which are closely related to plant growth. Rhizosphere microbiota analyses indicated that the combination of low fertigation input and B006 application promoted the enrichment of <i>Streptomyces</i>, <i>Lechevalieria</i>, <i>Promicromonospora</i>, and <i>Aeromicrobium</i> and the abundance of <i>Lechevalieria</i> was positively correlated with the root length and vitality. This suggested that the integrated application of reduced fertigation and <i>Bacillus</i> is highly efficient to improve soil ecology and productivity and will benefit the sustainable development of crop cultivation in a cost-effective way. |
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| issn | 2079-7737 |
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| last_indexed | 2024-03-09T10:55:30Z |
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| spelling | doaj.art-9faae6924c97487db476a93999da4cec2023-12-01T01:41:03ZengMDPI AGBiology2079-77372023-08-01128113010.3390/biology12081130Combination of <i>Bacillus</i> and Low Fertigation Input Promoted the Growth and Productivity of Chinese Cabbage and Enriched Beneficial Rhizosphere Bacteria <i>Lechevalieria</i>Shi-Chang Zhang0Yu-Lu Zhang1Xiao-Jing Guo2Ming Luo3Shi-Dong Li4Rong-Jun Guo5State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, ChinaState Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, ChinaState Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, ChinaCollege of Agriculture, Xinjiang Agricultural University, Urumqi 830052, ChinaState Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, ChinaState Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, ChinaLong-term overfertilization increases soil salinity and disease occurrence and reduces crop yield. Integrated application of microbial agents with low fertigation input might be a sustainable and cost-effective strategy. Herein, the promoting effects of <i>Bacillus velezensis</i> B006 on the growth of Chinese cabbage under different fertigation conditions in field trials were studied and the underlying mechanisms were revealed. In comparison with normal fertigation (water potential of −30 kPa and soluble N, P, K of 29.75, 8.26, 21.48 Kg hm<sup>−2</sup>) without B006 application, the combination of <i>B. velezensis</i> B006 and reduced fertigation input (−50 kPa and N, P, K of 11.75, 3.26, 6.48 Kg hm<sup>−2</sup>) promoted cabbage growth and root development, restrained the occurrence of soft rot disease, and improved the yield. High-performance liquid chromatography (HPLC) analyses indicated that B006 application promoted the production of indole-3-acetic acid and salicylic acid in cabbage roots, which are closely related to plant growth. Rhizosphere microbiota analyses indicated that the combination of low fertigation input and B006 application promoted the enrichment of <i>Streptomyces</i>, <i>Lechevalieria</i>, <i>Promicromonospora</i>, and <i>Aeromicrobium</i> and the abundance of <i>Lechevalieria</i> was positively correlated with the root length and vitality. This suggested that the integrated application of reduced fertigation and <i>Bacillus</i> is highly efficient to improve soil ecology and productivity and will benefit the sustainable development of crop cultivation in a cost-effective way.https://www.mdpi.com/2079-7737/12/8/1130soil water potentialgrowth promotion<i>Bacillus</i>rhizosphere microbial communityplant hormone |
| spellingShingle | Shi-Chang Zhang Yu-Lu Zhang Xiao-Jing Guo Ming Luo Shi-Dong Li Rong-Jun Guo Combination of <i>Bacillus</i> and Low Fertigation Input Promoted the Growth and Productivity of Chinese Cabbage and Enriched Beneficial Rhizosphere Bacteria <i>Lechevalieria</i> Biology soil water potential growth promotion <i>Bacillus</i> rhizosphere microbial community plant hormone |
| title | Combination of <i>Bacillus</i> and Low Fertigation Input Promoted the Growth and Productivity of Chinese Cabbage and Enriched Beneficial Rhizosphere Bacteria <i>Lechevalieria</i> |
| title_full | Combination of <i>Bacillus</i> and Low Fertigation Input Promoted the Growth and Productivity of Chinese Cabbage and Enriched Beneficial Rhizosphere Bacteria <i>Lechevalieria</i> |
| title_fullStr | Combination of <i>Bacillus</i> and Low Fertigation Input Promoted the Growth and Productivity of Chinese Cabbage and Enriched Beneficial Rhizosphere Bacteria <i>Lechevalieria</i> |
| title_full_unstemmed | Combination of <i>Bacillus</i> and Low Fertigation Input Promoted the Growth and Productivity of Chinese Cabbage and Enriched Beneficial Rhizosphere Bacteria <i>Lechevalieria</i> |
| title_short | Combination of <i>Bacillus</i> and Low Fertigation Input Promoted the Growth and Productivity of Chinese Cabbage and Enriched Beneficial Rhizosphere Bacteria <i>Lechevalieria</i> |
| title_sort | combination of i bacillus i and low fertigation input promoted the growth and productivity of chinese cabbage and enriched beneficial rhizosphere bacteria i lechevalieria i |
| topic | soil water potential growth promotion <i>Bacillus</i> rhizosphere microbial community plant hormone |
| url | https://www.mdpi.com/2079-7737/12/8/1130 |
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