Influence of Farmyard Manure Application on Potential Zinc Solubilizing Microbial Species Abundance in a Ferralsol of Western Kenya
Zinc is an important nutrient for plant growth and development. Its availability is influenced by zinc solubilizing microbes (ZSMs). The effects of commonly promoted agronomic practices on the abundance of ZSMs are so far not well understood. In this study, conducted in 2019, we assessed the effects...
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MDPI AG
2023-11-01
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| Series: | Agriculture |
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| Online Access: | https://www.mdpi.com/2077-0472/13/12/2217 |
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| author | Peter Bolo Monicah Wanjiku Mucheru-Muna Romano Kachiuru Mwirichia Michael Kinyua George Ayaga Job Kihara |
| author_facet | Peter Bolo Monicah Wanjiku Mucheru-Muna Romano Kachiuru Mwirichia Michael Kinyua George Ayaga Job Kihara |
| author_sort | Peter Bolo |
| collection | DOAJ |
| description | Zinc is an important nutrient for plant growth and development. Its availability is influenced by zinc solubilizing microbes (ZSMs). The effects of commonly promoted agronomic practices on the abundance of ZSMs are so far not well understood. In this study, conducted in 2019, we assessed the effects of farmyard manure (FYM) application, either sole or in combination with residue and/or inorganic fertilizer inputs, on ZSM community structure using 11 treatments in a long-term (17 years) integrated soil fertility management experiment located in Western Kenya. Bacterial and fungal community composition were evaluated by amplicon sequencing on an Illumina MiSeq platform. The results showed that putative ZSMs (i.e., the ZSMs generally considered to possess the zinc solubilizing capabilities) were clustered in two major clades based on either the application or no application of FYM. Sole application of FYM significantly (<i>p</i> < 0.05) increased the abundance of several ZSMs under a maize–Tephrosia rotation. In addition, systems with the combined application of FYM with other inputs generally showed significantly increasing trends for some ZSMs under a maize–Tephrosia rotation. Moreover, the combined application of FYM and P rather than only P significantly increased the abundance of some ZSMs under maize monocropping systems. Furthermore, as well as affecting ZSM abundance, soil chemical variables involving soil organic carbon (SOC), total N and Olsen P significantly increased with FYM application. This study indicated that management practices such as the application of FYM that increase SOC, and other soil chemical parameters, also/concomitantly increase ZSM abundance. These results imply enhanced capacities for microbial-linked zinc availability with FYM application. |
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| language | English |
| last_indexed | 2024-03-08T21:05:22Z |
| publishDate | 2023-11-01 |
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| spelling | doaj.art-453a66521778483abb2db443d6053a882023-12-22T13:45:29ZengMDPI AGAgriculture2077-04722023-11-011312221710.3390/agriculture13122217Influence of Farmyard Manure Application on Potential Zinc Solubilizing Microbial Species Abundance in a Ferralsol of Western KenyaPeter Bolo0Monicah Wanjiku Mucheru-Muna1Romano Kachiuru Mwirichia2Michael Kinyua3George Ayaga4Job Kihara5Alliance of Bioversity International and International Center for Tropical Agriculture (CIAT) c/o, International Centre of Insect Physiology and Ecology (ICIPE), Duduville Campus Off Kasarani Road, Nairobi P.O. Box 823-00621, KenyaDepartment of Environmental Sciences and Education, Kenyatta University, Nairobi P.O. Box 43844-00100, KenyaDepartment of Biological Sciences, University of Embu, Embu P.O. Box 6-60100, KenyaAlliance of Bioversity International and International Center for Tropical Agriculture (CIAT) c/o, International Centre of Insect Physiology and Ecology (ICIPE), Duduville Campus Off Kasarani Road, Nairobi P.O. Box 823-00621, KenyaKenya Agricultural and Livestock Research Organization (KALRO), Nairobi P.O. Box 30148-00100, KenyaAlliance of Bioversity International and International Center for Tropical Agriculture (CIAT) c/o, International Centre of Insect Physiology and Ecology (ICIPE), Duduville Campus Off Kasarani Road, Nairobi P.O. Box 823-00621, KenyaZinc is an important nutrient for plant growth and development. Its availability is influenced by zinc solubilizing microbes (ZSMs). The effects of commonly promoted agronomic practices on the abundance of ZSMs are so far not well understood. In this study, conducted in 2019, we assessed the effects of farmyard manure (FYM) application, either sole or in combination with residue and/or inorganic fertilizer inputs, on ZSM community structure using 11 treatments in a long-term (17 years) integrated soil fertility management experiment located in Western Kenya. Bacterial and fungal community composition were evaluated by amplicon sequencing on an Illumina MiSeq platform. The results showed that putative ZSMs (i.e., the ZSMs generally considered to possess the zinc solubilizing capabilities) were clustered in two major clades based on either the application or no application of FYM. Sole application of FYM significantly (<i>p</i> < 0.05) increased the abundance of several ZSMs under a maize–Tephrosia rotation. In addition, systems with the combined application of FYM with other inputs generally showed significantly increasing trends for some ZSMs under a maize–Tephrosia rotation. Moreover, the combined application of FYM and P rather than only P significantly increased the abundance of some ZSMs under maize monocropping systems. Furthermore, as well as affecting ZSM abundance, soil chemical variables involving soil organic carbon (SOC), total N and Olsen P significantly increased with FYM application. This study indicated that management practices such as the application of FYM that increase SOC, and other soil chemical parameters, also/concomitantly increase ZSM abundance. These results imply enhanced capacities for microbial-linked zinc availability with FYM application.https://www.mdpi.com/2077-0472/13/12/2217farmyard manurezinc solubilizing microbesmicrobial diversityabundancesoil DNA sequencingagricultural inputs |
| spellingShingle | Peter Bolo Monicah Wanjiku Mucheru-Muna Romano Kachiuru Mwirichia Michael Kinyua George Ayaga Job Kihara Influence of Farmyard Manure Application on Potential Zinc Solubilizing Microbial Species Abundance in a Ferralsol of Western Kenya Agriculture farmyard manure zinc solubilizing microbes microbial diversity abundance soil DNA sequencing agricultural inputs |
| title | Influence of Farmyard Manure Application on Potential Zinc Solubilizing Microbial Species Abundance in a Ferralsol of Western Kenya |
| title_full | Influence of Farmyard Manure Application on Potential Zinc Solubilizing Microbial Species Abundance in a Ferralsol of Western Kenya |
| title_fullStr | Influence of Farmyard Manure Application on Potential Zinc Solubilizing Microbial Species Abundance in a Ferralsol of Western Kenya |
| title_full_unstemmed | Influence of Farmyard Manure Application on Potential Zinc Solubilizing Microbial Species Abundance in a Ferralsol of Western Kenya |
| title_short | Influence of Farmyard Manure Application on Potential Zinc Solubilizing Microbial Species Abundance in a Ferralsol of Western Kenya |
| title_sort | influence of farmyard manure application on potential zinc solubilizing microbial species abundance in a ferralsol of western kenya |
| topic | farmyard manure zinc solubilizing microbes microbial diversity abundance soil DNA sequencing agricultural inputs |
| url | https://www.mdpi.com/2077-0472/13/12/2217 |
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