当前位置: X-MOL 学术Appl. Soil Ecol. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Tea leaves biochar as a carrier of Bacillus cereus improves the soil function and crop productivity
Applied Soil Ecology ( IF 4.8 ) Pub Date : 2021-01-01 , DOI: 10.1016/j.apsoil.2020.103732
Muhammad Azeem , Tamoor Ul Hassan , Muhammad Ibrahim Tahir , Amjad Ali , Parimala Gnana Soundari Arockiam Jeyasundar , Qaiser Hussain , Saqib Bashir , Sajid Mehmood , Zengqiang Zhang

Abstract The application of biochar for plant growth and yield is of great importance. A combination of biochar and potent plant growth-promoting rhizobacteria (PGPR) may contribute extensively to crop production. The present investigation revealed the role of phosphate solubilizing bacteria and different biochars produced from tea leaves (Camellia sinensis L.). Biochar was prepared at 350 °C (B1) and 600 °C (B2) temperatures by using the pyrolysis tank. Seven bacterial strains were isolated from various types of soil collected from Mansehra, Pakistan. On the basis of phosphate solubilization and indole acetic acid production, one strain (Bacillus cereus) was applied with biochar. A greenhouse experiment was carried out to evaluate biochar as carriers for inoculant on mung bean (Vigna mungo) plant by comparing it with peat moss. Plastic pots of 15 × 18 cm2 were filled with 1:3 of sand and autoclaved garden soil. Results revealed that biochar produced at a higher temperature (B2) showed greater shelf life as compared to peat. Among bacterial inoculation of Bacillus cereus with biochar at 600 °C improved soil properties i.e., soil organic carbon (14%), dissolved organic carbon (17%), total nitrogen (39%), Olsen phosphorus (36%) with enhanced microbial biomass (Cmic (17%), Nmic (36%), and Pmic (56%)), enzyme activity (urease (12%), dehydrogenase (40%), and phosphatase (49%)), crop growth and N2-fixation (54%) over control (peat). Additionally, high-temperature biochar inoculated with Bacillus cereus (B2 + BC) significantly (P ≤ .05) enhanced the Proteobacteria (11%), Firmicutes (46%), Actinobacteria (20%), and Cyanobacteria (33%) community as compared to peat alone. It is concluded that biochar formulated at high temperature and its co-inoculation with bacteria (Bacillus cereus) may enhance soil fertility, growth, and yield of mung bean.

中文翻译:

茶叶生物炭作为蜡状芽孢杆菌的载体改善土壤功能和作物生产力

摘要 生物炭在植物生长和产量中的应用具有重要意义。生物炭和有效的植物促进根际细菌 (PGPR) 的组合可能对作物生产有广泛的贡献。本研究揭示了磷酸盐溶解细菌和茶叶(Camellia sinensis L.)产生的不同生物炭的作用。使用热解罐在 350 °C (B1) 和 600 °C (B2) 温度下制备生物炭。从从巴基斯坦曼塞拉收集的各种类型的土壤中分离出七种细菌菌株。在溶解磷酸盐和生产吲哚乙酸的基础上,对一株(蜡状芽孢杆菌)进行了生物炭应用。进行了温室试验,通过与泥炭苔进行比较,评估生物炭作为绿豆(Vigna mungo)植物接种剂载体。15 × 18 cm2 的塑料盆装满 1:3 的沙子和高压灭菌的花园土壤。结果表明,与泥炭相比,在较高温度 (B2) 下生产的生物炭显示出更长的保质期。在 600 °C 下用生物炭接种蜡样芽孢杆菌的细菌中,土壤性质得到改善,即土壤有机碳 (14%)、溶解有机碳 (17%)、总氮 (39%)、奥尔森磷 (36%) 和增强的微生物生物量(Cmic (17%)、Nmic (36%) 和 Pmic (56%))、酶活性(脲酶 (12%)、脱氢酶 (40%) 和磷酸酶 (49%))、作物生长和 N2 固定(54%) 控制(泥炭)。此外,接种蜡状芽孢杆菌 (B2 + BC) 的高温生物炭显着 (P ≤ .05) 增强了变形菌 (11%)、厚壁菌 (46%)、放线菌 (20%) 和蓝藻 (33%) 群落,如与单独的泥炭相比。
更新日期:2021-01-01
down
wechat
bug