Effects of Selected Functional Bacteria on Maize Growth and Nutrient Use Efficiency
Plant growth-promoting rhizobacteria (PGPR), which include isolates from genera <i>Paraburkholderia</i>, <i>Burkholderia</i> and <i>Serratia,</i> have received attention due to their numerous plant growth-promoting mechanisms such as their ability to solubilize in...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2020-06-01
|
| Series: | Microorganisms |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2076-2607/8/6/854 |
| _version_ | 1797566008826789888 |
|---|---|
| author | Amelia Tang Ahmed Osumanu Haruna Nik Muhamad Ab. Majid Mohamadu Boyie Jalloh |
| author_facet | Amelia Tang Ahmed Osumanu Haruna Nik Muhamad Ab. Majid Mohamadu Boyie Jalloh |
| author_sort | Amelia Tang |
| collection | DOAJ |
| description | Plant growth-promoting rhizobacteria (PGPR), which include isolates from genera <i>Paraburkholderia</i>, <i>Burkholderia</i> and <i>Serratia,</i> have received attention due to their numerous plant growth-promoting mechanisms such as their ability to solubilize insoluble phosphates and nitrogen-fixation. However, there is a dearth of information on the potential plant growth-promoting effects of these three groups of bacteria on non-legumes such as maize. This study determined the influences of the aforementioned strains on soil properties, maize growth, nutrient uptake and nutrient use efficiency. A pot trial using maize as a test crop was done using a randomized complete block design with 7 treatments each replicated 7 times. The treatments used in this study were: Control (no fertilizer), chemical fertilizer (CF), organic-chemical fertilizers combination without inoculum (OCF) and with inocula consisting of single strains [cellulolytic bacteria (TC), organic fertilizer and chemical fertilizer with N-fixing bacteria (TN), organic fertilizer and chemical fertilizer with P-solubilizing bacteria (TP)) and three-strain inocula (TCNP), respectively. The variables measured included plant growth and nutrient content, soil nutrient content and functional rhizospheric bacterial populations. <i>Paraburkholderia nodosa</i> NB1 and <i>Burkholderia cepacia</i> PB3 showed comparable effects on maize biomass and also improved N and P use efficiencies when compared to full chemical fertilization. Nitrogen-fixing rhizobacteria had a positive effect on above-ground biomass of maize. <i>Paraburkholderia nodosa</i> NB1 improved soil total C and organic matter contents, besides being the only bacterial treatment that improved K use efficiency compared to OCF. The results suggest that <i>P. nodosa</i> NB1 and <i>B. cepacia</i> PB3 have potential usage in bio-fertilizers. In contrast, treatments with <i>Serratia nematodiphila</i> C46d and consortium strains showed poorer maize nutrient uptake and use efficiency than the other single strain treatments. Bacterial treatments generally showed comparable or higher overall N and P use efficiencies than full chemical fertilization. These findings suggest that at least half the amounts of N and P fertilizers could be reduced through the use of combined fertilization together with beneficial bacteria. |
| first_indexed | 2024-03-10T19:20:46Z |
| format | Article |
| id | doaj.art-50854d72ec8b4e37a53cb9d152a3ffc9 |
| institution | Directory Open Access Journal |
| issn | 2076-2607 |
| language | English |
| last_indexed | 2024-03-10T19:20:46Z |
| publishDate | 2020-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Microorganisms |
| spelling | doaj.art-50854d72ec8b4e37a53cb9d152a3ffc92023-11-20T02:57:29ZengMDPI AGMicroorganisms2076-26072020-06-018685410.3390/microorganisms8060854Effects of Selected Functional Bacteria on Maize Growth and Nutrient Use EfficiencyAmelia Tang0Ahmed Osumanu Haruna1Nik Muhamad Ab. Majid2Mohamadu Boyie Jalloh3Faculty of Agriculture and Food Sciences, Universiti Putra Malaysia Bintulu Sarawak Campus, Bintulu 97008, Sarawak, MalaysiaFaculty of Agriculture and Food Sciences, Universiti Putra Malaysia Bintulu Sarawak Campus, Bintulu 97008, Sarawak, MalaysiaInstitute of Tropical Forestry and Forest Products (INTROP), Universiti Putra Malaysia, Serdang 43400, Selangor, MalaysiaFaculty of Sustainable Agriculture, Universiti Malaysia Sabah, Sandakan Branch, Locked Bag No. 3, Sandakan 90509, Sabah, MalaysiaPlant growth-promoting rhizobacteria (PGPR), which include isolates from genera <i>Paraburkholderia</i>, <i>Burkholderia</i> and <i>Serratia,</i> have received attention due to their numerous plant growth-promoting mechanisms such as their ability to solubilize insoluble phosphates and nitrogen-fixation. However, there is a dearth of information on the potential plant growth-promoting effects of these three groups of bacteria on non-legumes such as maize. This study determined the influences of the aforementioned strains on soil properties, maize growth, nutrient uptake and nutrient use efficiency. A pot trial using maize as a test crop was done using a randomized complete block design with 7 treatments each replicated 7 times. The treatments used in this study were: Control (no fertilizer), chemical fertilizer (CF), organic-chemical fertilizers combination without inoculum (OCF) and with inocula consisting of single strains [cellulolytic bacteria (TC), organic fertilizer and chemical fertilizer with N-fixing bacteria (TN), organic fertilizer and chemical fertilizer with P-solubilizing bacteria (TP)) and three-strain inocula (TCNP), respectively. The variables measured included plant growth and nutrient content, soil nutrient content and functional rhizospheric bacterial populations. <i>Paraburkholderia nodosa</i> NB1 and <i>Burkholderia cepacia</i> PB3 showed comparable effects on maize biomass and also improved N and P use efficiencies when compared to full chemical fertilization. Nitrogen-fixing rhizobacteria had a positive effect on above-ground biomass of maize. <i>Paraburkholderia nodosa</i> NB1 improved soil total C and organic matter contents, besides being the only bacterial treatment that improved K use efficiency compared to OCF. The results suggest that <i>P. nodosa</i> NB1 and <i>B. cepacia</i> PB3 have potential usage in bio-fertilizers. In contrast, treatments with <i>Serratia nematodiphila</i> C46d and consortium strains showed poorer maize nutrient uptake and use efficiency than the other single strain treatments. Bacterial treatments generally showed comparable or higher overall N and P use efficiencies than full chemical fertilization. These findings suggest that at least half the amounts of N and P fertilizers could be reduced through the use of combined fertilization together with beneficial bacteria.https://www.mdpi.com/2076-2607/8/6/854<i>Paraburkholderia nodosa</i><i>Burkholderia cepacia</i><i>Serratia nematodiphila</i>PGPRsintegrated nutrient management |
| spellingShingle | Amelia Tang Ahmed Osumanu Haruna Nik Muhamad Ab. Majid Mohamadu Boyie Jalloh Effects of Selected Functional Bacteria on Maize Growth and Nutrient Use Efficiency Microorganisms <i>Paraburkholderia nodosa</i> <i>Burkholderia cepacia</i> <i>Serratia nematodiphila</i> PGPRs integrated nutrient management |
| title | Effects of Selected Functional Bacteria on Maize Growth and Nutrient Use Efficiency |
| title_full | Effects of Selected Functional Bacteria on Maize Growth and Nutrient Use Efficiency |
| title_fullStr | Effects of Selected Functional Bacteria on Maize Growth and Nutrient Use Efficiency |
| title_full_unstemmed | Effects of Selected Functional Bacteria on Maize Growth and Nutrient Use Efficiency |
| title_short | Effects of Selected Functional Bacteria on Maize Growth and Nutrient Use Efficiency |
| title_sort | effects of selected functional bacteria on maize growth and nutrient use efficiency |
| topic | <i>Paraburkholderia nodosa</i> <i>Burkholderia cepacia</i> <i>Serratia nematodiphila</i> PGPRs integrated nutrient management |
| url | https://www.mdpi.com/2076-2607/8/6/854 |
| work_keys_str_mv | AT ameliatang effectsofselectedfunctionalbacteriaonmaizegrowthandnutrientuseefficiency AT ahmedosumanuharuna effectsofselectedfunctionalbacteriaonmaizegrowthandnutrientuseefficiency AT nikmuhamadabmajid effectsofselectedfunctionalbacteriaonmaizegrowthandnutrientuseefficiency AT mohamaduboyiejalloh effectsofselectedfunctionalbacteriaonmaizegrowthandnutrientuseefficiency |