Soil bacterial microbiota predetermines rice yield in reclaiming saline‐sodic soils leached with brackish ice

2021 ◽  
Author(s):  
Lu Zhang ◽  
An‐Hui Ge ◽  
Tibor Tóth ◽  
Fenghua An ◽  
Liangliang Guo ◽  
...  
Keyword(s):  
Rice Yield ◽  
Sodic Soils ◽  
Bacterial Microbiota ◽  
Soil Bacterial ◽  
Brackish Ice

Soil bacterial communities interact with silicon fraction transformation and promote rice yield after long-term straw return

2021 ◽  
Author(s):  
Alin Song ◽  
Zimin Li ◽  
Fenliang Fan
Keyword(s):  
Microbial Community ◽  
Rice Yield ◽  
Soil Microbial Communities ◽  
Nutrient Sources ◽  
Soil Microbial ◽  
Mn Oxide ◽  
Straw Return ◽  
Soil Bacterial ◽  
Healthy Growth

<p>Returning crop straw into soil is an important practice to balance biogenic and bioavailable silicon (Si) pool in paddy, which is crucial for rice healthy growth. However, it remains elusive how straw return affects Si bioavailability, its uptake, and rice yield, owing to little knowledge about soil microbial communities responsible for straw degradation. Here, we investigated the change of soil Si fractions and microbial community in a 39-year-old paddy field amended by a long-term straw return. Results showed that rice straw-return significantly increased soil bioavailable Si and rice yield to from 29.9% to 61.6% and from 14.5% to 23.6%, respectively, compared to NPK fertilization alone. Straw return significantly altered soil microbial community abundance. Acidobacteria was positively and significantly related to amorphous Si, while Rokubacteria at the phylum level, Deltaproteobacteria and Holophagae at the class level were negatively and significantly related to organic matter adsorbed and Fe/Mn-oxide combined Si in soils. Redundancy analysis of their correlations further demonstrated that Si status significantly explained 12% of soil bacterial community variation. These findings suggest that soil bacteria community and diversity interact with Si mobility via altering its transformation, resulting in the balance of various nutrient sources to drive biological silicon cycle in agroecosystem.</p>

scholarly journals Soil bacterial communities interact with silicon fraction transformation and promote rice yield after long-term straw return

2021 ◽  
Author(s):  
Alin Song ◽  
Zimin Li ◽  
Yulin Liao ◽  
Yongchao Liang ◽  
Enzhao Wang ◽  
...  
Keyword(s):  
Bacterial Communities ◽  
Rice Yield ◽  
Soil Bacterial Communities ◽  
Straw Return ◽  
Soil Bacterial

scholarly journals Response of soil bacterial community to bioorganic fertilizer application as a weed management strategy in rice paddy

2021 ◽  
Author(s):  
Zuren Li ◽  
Huidang Jian ◽  
Ducai Liu ◽  
Xueduan Liu ◽  
Lianyang Bai
Keyword(s):  
Bacterial Community ◽  
Weed Control ◽  
Soil Ph ◽  
Rice Yield ◽  
Chemical Properties ◽  
Soil Bacterial Community ◽  
Control Effect ◽  
Weed Biocontrol ◽  
Bioorganic Fertilizer ◽  
Soil Bacterial

Abstract Background: The growth of weed is common problem in rice cropping, leading to the application of herbicidal substances to suppress weed growth. Weed biocontrol through novel bioorganic fertilizer (BIO) has been established in rice cultivation, however, its main herbicidal components and influence on soil bacterial community are unknown.Results: We identified three herbicidal components, hexadecanoic, isovaleric, and 2-methylbutyric acids, in BIO extract. We conducted 16S rRNA sequencing to identify changes in soil bacterial community in response to BIO treatments and performed a RDA analysis with soil chemical properties and weed-control effect. The OTU, Chao1 and Shannon indices did not differ substantially among the BIO treatments, and the bacterial diversity was not significantly affected by BIO. As result from PCA analysis, we discovered that soil bacterial community was not significantly influenced by BIO. We identified six dominant phyla (Proteobacteria, Acidobacteria, Chloroflexi, Nitrospirae, and Verrucomicrobia) in BIO-treated paddies. The five most abundant genera were Anaeromyxobacter, Candidatus Nitrosotalea, Clostridum sensustricto1, Haliangium and Candidatus Nitrotoga. From the RDA analysis, the highest correlations were obtained for soil pH, total K, and Pseudomonas. The weed-control effect mostly correlated with the abundance of Candidatus Koribacter, Clostridium sebsustricto 9, and Nonomuraea. Rice yield had a distinct relationship with Nonomuraea, Nitrospira, and Candidatus Koribacter.Conclusions: With the changes in soil pH and total K, BIO could impact bacterial communities and weed control, and in turn affect rice yield. This foundation can be helpful that application BIO is a “not harmful” and feasibility weed biocontrol strategy.

Salinity fractionation of saline-sodic soils reclaimed by CaCl2-amended brackish ice

2021 ◽  
pp. 1-18
Author(s):  
Lu Zhang ◽  
Fan Yang ◽  
Zhichun Wang ◽  
Tibor Tóth ◽  
Fenghua An ◽  
...  
Keyword(s):  
Sodic Soils ◽  
Brackish Ice

scholarly journals Intrinsic factors ofPeltigeralichens influence the structure of the associated soil bacterial microbiota

2016 ◽  
Vol 92 (11) ◽  
pp. fiw178 ◽  
Author(s):  
Diego Leiva ◽  
Claudia Clavero-León ◽  
Margarita Carú ◽  
Julieta Orlando
Keyword(s):  
Intrinsic Factors ◽  
Bacterial Microbiota ◽  
Soil Bacterial

EFFECT OF FLY ASH ON CROP YIELD AND PHYSICO-CHEMICAL, MICROBIAL AND ENZYME ACTIVITIES OF SODIC SOILS

2016 ◽  
Vol 15 (11) ◽  
pp. 2433-2440 ◽  
Author(s):  
Kripal Singh ◽  
Vimal Chandra Pandey ◽  
Bajrang Singh ◽  
Dharani D. Patra ◽  
Rana P. Singh
Keyword(s):  
Fly Ash ◽  
Crop Yield ◽  
Enzyme Activities ◽  
Sodic Soils ◽  
Physico Chemical
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