23 Result(s)
within
Zhenke Zhu
Agriculture
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Article
Bacterial necromass determines the response of mineral-associated organic matter to elevated CO2
Microorganisms regulate soil organic matter (SOM) formation through accumulation and decomposition of microbial necromass, which is directly and indirectly affected by elevated CO2 and N fertilization. We investi...
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Article
Open AccessMicrobial mechanisms of organic matter mineralization induced by straw in biochar-amended paddy soil
Combined straw and straw-derived biochar input is commonly applied by farmland management in low-fertility soils. Although straw return increases soil organic matter (SOM) contents, it also primes SOM minerali...
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Article
Extraction optimisation to measure viral abundance in red soils
Viruses are extremely abundant in soils and have various important ecological implications therein. The quantification and identification of soil viruses are critical for a comprehensive understanding of their...
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Article
Phagotrophic protist-mediated control of Polymyxa graminis in the wheat rhizosphere
Uncovering potential biocontrol agents that suppress soil-borne pathogens is an important step toward develo** sustainable management strategies for disease control and to maintain plant health. Plant cultiv...
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Article
Deciphering differences in microbial community composition and multifunctionality between healthy and Alternaria solani-infected potato rhizosphere soils
Understanding the interactions among soil microbial communities, soil multifunctionality, and soil-borne pathogens are important for ecological prevention and control of soil-borne diseases. In this study, we ...
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Article
Sources and intensity of CH4 production in paddy soils depend on iron oxides and microbial biomass
A paddy soil, with microbial biomass considerably reduced by chloroform fumigation, was treated with low-crystalline ferrihydrite and high-crystalline goethite and with 13C-labeled acetate. In the first 10 days o...
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Article
Contrasting response of organic carbon mineralisation to iron oxide addition under conditions of low and high microbial biomass in anoxic paddy soil
In contrast to what is observed in aerobic uplands, microbial biomass and the presence of electron acceptors, such as iron oxides, play a crucial role in regulating soil organic C (SOC) mineralisation in paddy...
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Article
C:N:P stoichiometry regulates soil organic carbon mineralization and concomitant shifts in microbial community composition in paddy soil
Stoichiometric control of input substrate (glucose) and native soil organic C (SOC) mineralization was assessed by performing a manipulation experiment based on N or P fertilization in paddy soil. Glucose mine...
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Article
Nitrogen fertilization alters the distribution and fates of photosynthesized carbon in rice–soil systems: a 13C-CO2 pulse labeling study
Although nitrogen (N) fertilization is widely used to increase rice yield, its impact on the distribution, transformation, and fates of photosynthetic carbon (C) in rice–soil systems is poorly understood. To a...
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Article
Nitrogen fertilization increases rice rhizodeposition and its stabilization in soil aggregates and the humus fraction`
Rhizodeposited-carbon (C) plays an important role in regulating soil C concentrations and turnover, however, the distribution of rhizodeposited-C into different soil organic carbon (SOC) pools and how regulate...
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Article
Assimilate allocation by rice and carbon stabilisation in soil: effect of water management and phosphorus fertilisation
Water and nutrient management influences the allocation and stabilisation of newly assimilated carbon (C) in paddy soils. This study aimed to determine the belowground allocation of C assimilated by rice and t...
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Article
Carbon and nitrogen availability in paddy soil affects rice photosynthate allocation, microbial community composition, and priming: combining continuous 13C labeling with PLFA analysis
Carbon (C) and nitrogen (N) availability in soil change microbial community composition and activity and so, might affect soil organic matter (SOM) decomposition as well as allocation of plant assimilates. The...
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Article
Expansion of rice enzymatic rhizosphere: temporal dynamics in response to phosphorus and cellulose application
The rhizosphere has ecological importance as a microbial hotspot to understand the ‘real’ processing rates of element cycles without being misled by inactive bulk soil. It is thus essential to estimate the rhi...
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Article
Correction to: Split N and P addition decreases straw mineralization and the priming effect of a paddy soil: a 100-day incubation experiment
The author regret that the above article originally published with an error in the equation under “Calculation of GHG emission, PE, C-mineralization, microbial C use efficiency, and enzyme activity” section. T...
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Article
Split N and P addition decreases straw mineralization and the priming effect of a paddy soil: a 100-day incubation experiment
The effect of mineral fertilization and its application pattern on microbial activity and the subsequent CO2 and CH4 emissions arising from soil organic matter (SOM) or added substrate remains unclear. We quantif...
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Article
C/P stoichiometry of dying rice root defines the spatial distribution and dynamics of enzyme activities in root-detritusphere
As the primary microbial substrate after shoot cutting, the element stoichiometry of root-detritus (dying or dead roots) influences the enzyme activity in root-detritusphere. However, the effect of the C/P rat...
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Article
Effect of P stoichiometry on the abundance of nitrogen-cycle genes in phosphorus-limited paddy soil
Previous studies have shown that phosphorus addition to P-limited soils increases gaseous N loss. A possible explanation for this phenomenon is element stoichiometry (specifically of C:N:P) modifying linked nu...
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Article
Fate of rice shoot and root residues, rhizodeposits, and microbial assimilated carbon in paddy soil - part 2: turnover and microbial utilization
The turnover of plant- and microbial- derived carbon (C) plays a significant role in the soil organic C (SOC) cycle. However, there is limited information about the turnover of the recently photosynthesized pl...
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Article
Rice rhizodeposition and carbon stabilisation in paddy soil are regulated via drying-rewetting cycles and nitrogen fertilisation
This study aimed to better understand the stabilisation of rice rhizodeposition in paddy soil under the interactive effects of different N fertilisation and water regimes. We continuously labelled rice (‘Zhong...
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Article
Belowground carbon allocation and dynamics under rice cultivation depends on soil organic matter content
The cycling of photosynthate carbon (C) released in the rhizosphere has significant implications for C sequestration, microbial activities, and nutrient availability in the soil. It is known that the soil orga...
