Biochar and Intercropping With Potato-Onion Enhanced the Growth and Yield Advantages of Tomato by Regulating the Soil Properties, Nutrient Uptake, and Soil Microbial Community.
Biochar and Intercropping With Potato-Onion Enhanced the Growth and Yield Advantages of Tomato by Regulating the Soil Properties, Nutrient Uptake, and Soil Microbial Community.
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生物炭和马铃薯洋葱间作通过调节土壤性质、养分吸收和土壤微生物群落增强番茄的生长和产量优势
DOI：
10.3389/fmicb.2021.695447
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发表时间：
2021
影响因子：
5.2
通讯作者：
Wu F
中科院分区：
文献类型：
--
作者：
He X;Xie H;Gao D;Khashi U Rahman M;Zhou X;Wu F
The application of biochar stimulates the activities of microorganisms that affect soil quality and plant growth. However, studies on the impacts of biochar mainly focus on a monoculture, its effects on interspecific interactions are rarely reported. Here, we investigated the impacts of biochar on tomato/potato–onion intercropped (TO) in a pot experiment. Tomato monoculture (T) and TO were treated with no, 0.3, 0.6, and 1.2% biochar concentrations in a pot experiment. Microbial communities from tomato rhizosphere soil were analyzed by quantitative PCR and Illumina MiSeq. The results showed that compared with the tomato monoculture, 0.6%TO and 1.2%TO significantly increased tomato yield in 2018. TO and 1.2%TO significantly increased plant height and dry weight in 2018 and 2019. Biochar treatments increased soil pH, decreased NO-N and bulk density, and increased the absorption of N, P, and K by tomato. Bacterial and fungal abundances increased with an increase in biochar concentration, while Bacillus spp. and Pseudomonas spp. abundances showed an “increase-decrease-increase” trend. Biochar had a little effect on bacterial diversities but significantly lowered fungal diversities. TO, 0.6%TO, and 1.2%TO increased the potentially beneficial organisms (e.g., Pseudeurotium and Solirubrobacter) and lowered the potentially pathogenic organisms (e.g., Kribbella and Ilyonectria). Different concentrations of biochar affected the bacterial and fungal community structures. Redundancy analysis indicated that the bacterial community was strongly correlated with soil pH, NO-N, and EC, while the fungal community was closely related to soil NO-N and moisture. The network analysis showed that biochar and intercropping affected the symbiosis pattern of the microorganisms and increased the proportion of positive interactions and nitrifying microorganisms (Nitrospirae) in the microbial community. Overall, our results indicated that monoculture and intercropping with biochar improved soil physicochemical states and plant nutrient absorption, and regulated soil microbial communities, these were the main factors to promote tomato growth and increase tomato productivity.
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影响因子：
5
作者：
Gradisar, H;Kern, S;Friedrich, J
通讯作者：
Friedrich, J
影响因子：
4.9
作者：
GARDES, M;BRUNS, TD
通讯作者：
BRUNS, TD
生物炭改良对中国西南喀斯特地区根际和土壤微生物群落的长期影响
影响因子：
4.8
作者：
Cheng, Jianzhong;Lee, Xinqing;Zhang, Qinghai
通讯作者：
Zhang, Qinghai
影响因子：
48
作者：
Edgar, Robert C.
通讯作者：
Edgar, Robert C.
集约化管理的竹林土壤中微生物群落结构和功能对短期生物炭改良的响应：颗粒大小和添加率的影响
影响因子：
9.8
作者：
Chen, Junhui;Li, Songhao;Fuhrmann, Jeffry J.
通讯作者：
Fuhrmann, Jeffry J.