Tea leaves biochar as a carrier of Bacillus cereus improves the soil function and crop productivity

Azeem, Muhammad; Hassan, Tamoor Ul; Tahir, Muhammad Ibrahim; Ali, Amjad; Jeyasundar, Parimala Gnana Soundari Arockiam; Hussain, Qaiser; Bashir, Saqib; Mehmood, Sajid; Zhang, Zengqiang

doi:10.1016/j.apsoil.2020.103732

Cited by 67 publications

(28 citation statements)

References 66 publications

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“…B. idriensis was the most abundant Bacillus of A. adenophora , which have the potential abilities to promote seedling root growth, desorbing phosphorus and producing indoleacetic acid and ammonia ( Afzal et al, 2016 ; Gholamalizadeh et al, 2017 ). B. cereus enhanced the soil microbial biomass, enzyme activity, N 2 -fixation, and P solubilization ( Nayak et al, 2018 ; Azeem et al, 2021 ). B. toyonensis had direct and indirect plant growth-promoting traits and facilitated plant growth ( Rojas-Solis et al, 2020 ; Zerrouk et al, 2020 ).…”

Section: Discussionmentioning

confidence: 99%

Rhizospheric Bacillus-Facilitated Effects on the Growth and Competitive Ability of the Invasive Plant Ageratina adenophora

Chen

et al. 2022

Front. Plant Sci.

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The rhizospheric microbial community affects the population establishment of invasive plants in introduced areas, among which Bacillus has numerous functions in promoting plant growth. This study isolated and enriched the Bacillus community in the rhizospheric soil of the invasive plant Ageratina adenophora and the native accompanying plant Rabdosia amethystoides. The effects of these rhizospheric Bacillus communities on the growth and competition of A. adenophora and R. amethystoides were evaluated in pot experiments. The results showed that the number and diversity of Bacillus in the rhizospheric soil of A. adenophora were higher than those of R. amethystoides (A. adenophora: 122 strains in soil, 16 Bacillus taxa; R. amethystoides: 88 strains in soil, 9 Bacillus taxa). After Bacillus inoculation of A. adenophora in a pot experiment, Bacillus idriensis, Bacillus toyonensis and Bacillus cereus were accumulated in the rhizospheric of A. adenophora, which significantly increased the nitrate nitrogen (NO3–-N) content in the soil and the total carbon and nitrogen concentrations in A. adenophora in the mixed treatment. The selective accumulation of Bacillus enhanced the competitive advantage of A. adenophora over the native accompanying plant; the corrected index of relative competition intensity of A. adenophora-inoculated Bacillus reached double that of the uninoculated treatment, and the growth of native plants was greatly suppressed under mixed planting. Our study confirmed that invasion of A. adenophora can lead to the accumulation of specific Bacillus taxa in the rhizospheric soil, which in turn can increase the competitive advantage of A. adenophora.

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Section: Discussionmentioning

confidence: 99%

Rhizospheric Bacillus-Facilitated Effects on the Growth and Competitive Ability of the Invasive Plant Ageratina adenophora

Chen

et al. 2022

Front. Plant Sci.

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“…The spectrum recorded in the 1000-2000 cm −1 energy region for the metal-free Biochar is shown in Figure 6 to illustrate this purpose. It is fitted with five components assigned to S (1262 cm −1 ; sp 2 -sp 3 ), D (1380 cm −1 ; sp 2 , C-C between aromatic cycles and highly ordered carbon material), V (1506 cm −1 ; sp 2 -sp 3 , amorphous carbon structures), G (1596 cm −1 ; graphite, sp 2 ) and G L (1696 cm −1 ; sp 2 , C=O) [25,26]. Particularly, the D and G bands are assigned to disordered and ideal graphitic lattice, respectively.…”

Section: Phase Analysismentioning

confidence: 99%

“…The rationale for the rush in research on biochar lies in the availability of biomass worldwide in different forms, such as agrowastes, i.e., peels [1], leaves [2], palm fronds [3] and seeds [4]. The production of biochar depends on various parameters: the initial composition of the biomass [5] and the pyrolysis parameters [6].…”

Section: Introductionmentioning

confidence: 99%

Copper/Nickel-Decorated Olive Pit Biochar: One Pot Solid State Synthesis for Environmental Remediation

et al. 2021

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Developing micro- and nanomaterials for environmental pollution remediation is currently a pertinent topic. Among the plethora of strategies, designing supported nanocatalysts for the degradation of pollutants has achieved prominence. In this context, we are addressing one of the UN Sustainable Development Goals by valorizing agrowaste as a source of biochar, which serves as a support for bimetallic nanocatalysts. Herein, olive pit powder particles were impregnated with copper and nickel nitrates and pyrolyzed at 400 °C. The resulting material consists of bimetallic CuNi-decorated biochar. CuNi nanocatalysts were found to be as small as 10 nm and very well dispersed over biochar with zero valent copper and nickel and the formation of copper–nickel solid solutions. The biochar@CuNi (B@CuNi) exhibited typical soft ferromagnet hysteresis loops with zero remanence and zero coercivity. The biochar@CuNi was found to be an efficient catalyst of the reduction in methyl orange (MO) dye, taken as a model pollutant. In sum, the one-pot method devised in this work provides unique CuNi-decorated biochar and broadens the horizons of the emerging topic of biochar-supported nanocatalysts.

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“…Penelitian Promraksa and Rakmak (2020) menyatakan bahwa konversi limbah padat industri sawit menjadi biochar dengan metode pyrolisis dengan suhu 525 o C dengan aliran N2 2 liter per menit selama 60 menit mampu menghasilkan 44,91% biochar. Azeem et al (2021) menyatakan bahwa biochar merupakan karier yang baik karena memiliki kandungan C-organik yang tinggi yang berfungsi sebagai sumber nutrisi mikroba selama masa penyimpanan. Tambahan pula, ISSN: 1412-4718, eISSN: 2581 Syarifain, R.I. et.…”

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Formulasi pembawa rizobakteri penambat nitrogen dan pelarut fosfat, serta aplikasinya di pembibitan kelapa sawit yang diberi komposisi dan dosis amelioran yang berbeda

Syarifain¹,

Rashaun²,

Anggrainy³

et al. 2022

kultivasi

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AbstrakKeberhasilan aplikasi pupuk hayati berkaitan dengan viabilitas mikroba dalam pembawa, dan aplikasinya di lapangan. Penelitian ini bertujuan mengetahui viabilitas Bakteri Penambat Nitrogen (BPN) dan Bakteri Pelarut Fosfat (BPF) pada berbagai komposisi karier, konsentrasi molase, dan aplikasinya dengan berbagai dosis serta komposisi amelioran pada pembibitan kelapa sawit. Penelitian dilaksanakan dari bulan Oktober 2019 - Mei 2020 di laboratorium dan kebun percobaan Ciparanje. Tahap pertama menggunakan Rancangan Acak Lengkap dua faktor (komposisi karier dan konsentrasi molase) dengan tiga ulangan. Tahap kedua menggunakan rancangan acak kelompok faktorial dua faktor (komposisi amelioran dan dosis aplikasi) pada pembibitan kelapa sawit sebanyak tiga ulangan. Hasil riset tahap pertama menunjukkan bahwa perlakuan kombinasi karier 90% + zat aditif 10% dengan penambahan 2% molase merupakan perlakuan terbaik dengan viabilitas BPN dan BPF tertinggi sampai dengan 12 Minggu Setelah Produksi (MSP) dengan masing-masing populasi sebesar 1,43 x 108 CFU g-1 dan 1,65 x 108 CFU g-1. Viabilitas BPN maupun BPF dalam campuran carrier 90% + zat aditif 10% dengan penambahan 2% molase pada masa simpan sampai dengan 12 MSP masih memenuhi standar mutu pupuk hayati yaitu sebesar 107 CFU g-1. Hasil riset tahap kedua dosis d3 (10%) komposisi k3 (Kompos blotong 25% + Abu sawit 25% + biochar 40% + Dolomit 10%) memberikan hasil terbaik pada pertambahan tinggi batang, diameter batang dan jumlah daun.Kata Kunci: Amelioran, organik, bakteri penambat nitrogen, bakteri pelarut fosfat, karier, pembibitan kelapa sawit AbstractThe successful application of biofertilizers is related to microbial viability in the carrier, and application in the field. The research examined the viability of Nitrogen-Fixing Bacteria (NFB) and Phosphate Solubilizing Bacteria (PSB) on various carrier compositions, molasses concentrations, and field application at oil palm nursery combined with different ameliorant dosage and composition. This research was conducted from October 2019 to May 2020 at the laboratory and Ciparanje experimental garden. The first phase used a two-factor completely randomized design (carrier composition and molasses concentration) that was given three replications. The second phase used a two-factor randomized completely block design (ameliorant composition and dosage). First phase results showed that carrier mixture 90% + additive 10% with the addition of 2% molasses was the best treatment with the highest NFB and PSB viability until 12 weeks after biofertilizer production with population of about 1.43 x 108 CFU g-1 and 1.65 x 108 CFUg-1, respectively. Viability of NFB and PSB in carrier mixture 90% + additive 10% with the addition of 2% molasses at the shelf life of 12 weeks after the production still meet the biofertilizer standards in the amount of 107 CFU g-1. Ameliorant d3 dose (10%) of composition k3 (25% sugarcane boiler compost + 25% palm ash + 40% biochar + 10% dolomite) gave the best results in the increase of plant height, stem diameter and leaves number.Keywords: Ameliorant, nitrogen fixing bacteria, oil palm nursery organic carrier, phosphate solubilizing bacteria

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Tea leaves biochar as a carrier of Bacillus cereus improves the soil function and crop productivity

Cited by 67 publications

References 66 publications

Rhizospheric Bacillus-Facilitated Effects on the Growth and Competitive Ability of the Invasive Plant Ageratina adenophora

Rhizospheric Bacillus-Facilitated Effects on the Growth and Competitive Ability of the Invasive Plant Ageratina adenophora

Copper/Nickel-Decorated Olive Pit Biochar: One Pot Solid State Synthesis for Environmental Remediation

Formulasi pembawa rizobakteri penambat nitrogen dan pelarut fosfat, serta aplikasinya di pembibitan kelapa sawit yang diberi komposisi dan dosis amelioran yang berbeda

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