Alkaline Thermal Hydrolysis of Sewage Sludge to Produce High-Quality Liquid Fertilizer Rich in Nitrogen-containing Plant-growth-promoting Nutrients and Biostimulants

2022 ◽  
pp. 118036
Author(s):  
Yanfei Tang ◽  
Hao Xie ◽  
Jing Sun ◽  
Xiaoou Li ◽  
Yue Zhang ◽  
...  
Keyword(s):  
Sewage Sludge ◽  
Plant Growth ◽  
Thermal Hydrolysis ◽  
High Quality ◽  
Liquid Fertilizer ◽  
Plant Growth Promoting ◽  
Growth Promoting ◽  
Hydrolysis Of

Improved Production of High-Quality Potato Seeds in Aeroponics with Plant-Growth-Promoting Rhizobacteria

2020 ◽  
Vol 64 (1) ◽  
pp. 55-66
Author(s):  
Oksana V. Tkachenko ◽  
Nina V. Evseeva ◽  
Elena V. Terentyeva ◽  
Gennady L. Burygin ◽  
Alexander А. Shirokov ◽  
...  
Keyword(s):  
Plant Growth ◽  
Plant Growth Promoting Rhizobacteria ◽  
High Quality ◽  
Quality Potato ◽  
Plant Growth Promoting ◽  
Growth Promoting

scholarly journals Characterisation of bacterial diversity in fresh and aged sewage sludge biosolids using next generation sequencing.

Detritus ◽  
2020 ◽  
pp. 82-91
Author(s):  
Karen Ruth Little ◽  
Han Ming Gan ◽  
Aravind Surapaneni ◽  
Jonathan Schmidt ◽  
Antonio Frank Patti
Keyword(s):  
Sewage Sludge ◽  
Plant Growth ◽  
Wastewater Treatment Plants ◽  
Fold Increase ◽  
Land Application ◽  
Plant Growth Promoting Bacteria ◽  
Potential Source ◽  
Plant Growth Promoting ◽  
Growth Promoting ◽  
Generation Sequencing

Sewage sludge, often referred to as biosolids, is generated in large quantities by wastewater treatment plants. It contains macro- and micronutrients which are essential for plant growth and so represents a valuable agricultural resource. Prior to land application, pathogens are carefully monitored to reduce the risk of crop and soil contamination however to date there has been limited investigation of agriculturally beneficial bacteria indigenous to the biosolids. This study investigated shifts in the composition of the bacterial community alongside the physicochemical properties of biosolids of increasing age, from freshly dewatered to those stockpiled for approximately four years. With stockpiling, there was a significant increase in ammonium content, ranging from 801 mg/kg in the fresh biosolids to 8178 mg/kg in the stockpiled biosolids and a corresponding increase in pH ranging from 6.93 to 8.21. We detected a ten-fold increase in Firmicutes, from 4% relative abundance in the fresh biosolids compared to 40% in the older, stockpiled biosolids. Plant growth promoting bacteria (PGPB) of the Proteobacteria family, particularly of the Devosia and Bradyrhizobium genera were identified in the freshly dewatered and the older, stockpiled biosolids. Land application of the biosolids studied here could reduce fertiliser costs, provide a means of pH correction to acidic soils and a potential source of bacteria beneficial for crop growth.

scholarly journals The impact of plant growth promoting bacteria (PGPB) on the development of phytopathogenic fungi

2014 ◽  
Vol 10 ◽  
pp. 107-112
Author(s):  
Anna Grobelak ◽  
Anna Napora ◽  
Małgorzata Kacprzak
Keyword(s):  
Sewage Sludge ◽  
Plant Growth ◽  
Fusarium Oxysporum ◽  
Alternaria Alternata ◽  
Phytopathogenic Fungi ◽  
Plant Growth Promoting Bacteria ◽  
Antifungal Properties ◽  
Plant Growth Promoting ◽  
Growth Promoting ◽  
The Impact

The main purpose of this study was to evaluate impact of plant growth promoting bacteria (PGPB) on the development of phytopathogenic fungi and correlate it with a potential effects on the growth of plants under unfavorable conditions, in order to improve the efficiency of a phytoremediation process. The conducted research focused on the antifungal properties of PGPB. In this study, 51 isolates of bacteria were obtained after diversified disinfection time from plants growing on soil after sewage sludge amendment. The results revealed that some isolated bacteria, mainly endophytic ones, inhibited the development of Fusarium oxysporum, F. culmorum and Alternaria alternata.

Aplikasi Bacillus subtilis pada beberapa Bahan Organik terhadap Pertumbuhan dan Produksi Tanaman Cabai Rawit (Capsicum frutescens L.)

2020 ◽  
Vol 21 (1) ◽  
pp. 14-19
Author(s):  
Praptiningsih Gamawati Adinurani ◽  
Sri Rahayu ◽  
Nurul Fima Zahroh
Keyword(s):  
Bacillus Subtilis ◽  
Plant Growth ◽  
Plant Growth Promoting Rhizobacteria ◽  
Capsicum Frutescens ◽  
Plant Growth Promoting ◽  
Growth Promoting

Mikroba Bacillus subtilis merupakan agen pengendali hayati mempunyai kelebihan sebagai Plant Growth Promoting Rhizobacteria (PGPR) yaitu dapat berfungsi sebagai biofertilizer, biostimulan, biodekomposer dan bioprotektan. Tujuan penelitian mengetahui potensi B. subtilis dalam merombak bahan organik sebagai usaha meningkatkan ketersediaan bahan organik tanah yang semakin menurun. Penelitian menggunakan Rancangan Petak Terbagi dengan berbagai  bahan organik sebagai petak utama (B0 = tanpa bahan organik, B1 = kotoran ayam,  B2 = kotoran kambing, B3 = kotoran sapi) dan aplikasi B.subtilis sebagai anak petak (A0 = 0 cc/L, A1 = 5cc/L, A2 = 10 cc/L, Pengamatan meliputi variabel tinggi tanaman, indeks luas daun, jumlah buah per tanaman, berat buah per tanaman, dan bahan organik tanah. Data pengamatan  dianalisis ragam  menggunakan  Statistical Product and Service Solutions (SPSS) versi 25 dan dilanjutkan dengan uji Duncan untuk mengetahui signifikansi perbedaan antar perlakuan. Hasil penelitian menunjukkan tidak terdapat interaksi antara bahan organik kotoran ternak dan konsentrasi B. subtilis terhadap semua variabel pengamatan. Potensi B. subtilis sangat baik dalam mendekomposisi bahan organik yang ditunjukkan dengan peningkatan bahan organik, dan hasil terbaik pada kotoran  sapi (B3) dan konsentrasi B. subtilis 15 mL/L masing-masing sebesar 46.47 % dan 34.76 %. Variabel pertumbuhan tidak berbeda nyata kecuali tinggi tanaman dengan pertambahan tinggi paling banyak pada pemberian kotoran kambing sebesar 170.69 %.

Isolation and identification of plant growth-promoting bacteria associated with tall fescue

2009 ◽  
pp. 211-216 ◽  
Author(s):  
J. Monk ◽  
E. Gerard ◽  
S. Young ◽  
K. Widdup ◽  
M. O'Callaghan
Keyword(s):  
New Zealand ◽  
Plant Growth ◽  
Tall Fescue ◽  
Festuca Arundinacea ◽  
Plant Growth Promoting Bacteria ◽  
Beneficial Bacteria ◽  
Isolation And Identification ◽  
Naturally Occurring ◽  
Plant Growth Promoting ◽  
Growth Promoting

Tall fescue (Festuca arundinacea) is a useful alternative to ryegrass in New Zealand pasture but it is slow to establish. Naturally occurring beneficial bacteria in the rhizosphere can improve plant growth and health through a variety of direct and indirect mechanisms. Keywords: rhizosphere, endorhiza, auxin, siderophore, P-solubilisation

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