Effects of straw management and nitrogen application rate on soil organic matter fractions and microbial properties in North China Plain

Li, Zengqiang; Li, Dandan; Ma, Lei; Yu, Yueyue; Zhao, Bingzi; Zhang, Jiabao

doi:10.1007/s11368-018-2102-4

Cited by 59 publications

(28 citation statements)

References 50 publications

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“…In the present study, the application of straw and biochar had no significant effect on urease activity as compared with the CK/CNPK treatment. This was inconsistent with previous reports, in which the application of biochar/straw had a positive or negative effect on the urease activity 51,52 . The possible reason was that the feedstock type, pyrolysis conditions, production method, application rate, and soil types are the governing factors that will influence the nitrogen cycling and urease activity in the soil 53,54 .…”

Section: Discussioncontrasting

confidence: 99%

“…In the present study, S, SNPK, and CNPK treatments increased the invertase activity as compared with the CK and NPK treatments. However, straw acts significant role in controlling hydrolytic enzyme activities, which are significantly affected by substrate concentrations, and the release of carbohydrate and protein components from straw may stimulate invertase activity 46,52 . Moreover, the application of biochar can increase enzyme activity through increasing the SOM, microbial activity, and microbial biomass or through co-location of enzymes and their interaction with biochar surface 55 .…”

Section: Discussionmentioning

confidence: 99%

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Effects of Biochar and Straw Application on the Physicochemical and Biological Properties of Paddy Soils in Northeast China

Zheng

Han

Li³

et al. 2019

Sci Rep

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Applying biochar to soil has been proposed as a strategy to enhance soil quality and crop productivity. To further evaluate the influence of biochar and straw application on soil fertility and crop yield, a five-year fixed site field experiment was conducted in a paddy field in Northeast China. The experimental design included six treatments: control (CK), biochar (C), straw (S), chemical fertilizers (NPK), biochar with chemical fertilizer (CNPK) and straw with chemical fertilizer (SNPK). The results showed that compared with the NPK treatment, CNPK and SNPK significantly increased soil total porosity, soil air permeability coefficient, soil organic carbon (SOC), C/N ratio, soil microbial biomass carbon (SMBC)‚ soil microbial biomass nitrogen (SMBN), invertase activity and rice yield. Furthermore, amendment of biochar had a better effect on SOC, C/N ratio, SMBC, and SMBN than that of straw. In addition, SMBC, SOC, and total nitrogen (TN) had significant correlations with soil enzyme activities. Therefore, amendment of biochar with chemical fertilizer is an effective measure to improve rice production and soil quality in the northeast of China.

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Section: Discussioncontrasting

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Effects of Biochar and Straw Application on the Physicochemical and Biological Properties of Paddy Soils in Northeast China

Zheng

Han

Li³

et al. 2019

Sci Rep

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“…The production of residues associated with 27 food crops has been evaluated at 3758 × 10 6 Mg yr -1 [1]. Returning crop residue to the soil can avoid the greenhouse gas emissions caused by burning it [2] while improving the soil organic matter content, soil physical properties, water use efficiency (WUE), soil structural stability, soil expansion, and capacity expansion, as well as reducing soil bulk density [3,4,5]. Moreover, crop residue return can increase crop yields and quality [6,7].…”

Section: Introductionmentioning

confidence: 99%

A meta-analysis of the effects of crop residue return on crop yields and water use efficiency

Lü

2020

PLoS ONE

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After harvesting agricultural crops, the residue can be returned to the soil as mulch. This study performed a meta-analysis of previous research to investigate the effects of crop residue return and other factors on crop yields and water use efficiency (WUE). Overall, the results show that crop residue return increases crop yields by 5.0% relative to crops grown without it. The greatest increases in yield for crops grown with returned residue were associated with average annual temperatures < 10˚C (yield increase = 7.6%), rainfall � 800 mm (9.5%), plowing depth � 20 cm (6.5%), corn crops (8.0%), growth of a single crop per year (10.1%), no irrigation (11.9%), nitrogen (N), and potassium (K) fertilization (20.0%), and low nitrogen application rates of 0-100 kg N ha-1 (10.8%). The effects of crop residue return on crop yields were found to vary according to the following soil properties: organic matter content � 15 g kg-1 (yield increase = 9.4%), available nitrogen content � 100 mg kg-1 (10.3%), and pH � 6.5 (11.2%). The greatest magnitudes of increase in WUE associated with crop residue return were associated with corn (yield increase = 13.7%), medium nitrogen content (100-150 kg ha-1 ; 23.3%), high soil organic matter (� 15 g kg-1 ; 25.5%) and low air temperatures (< 10˚C; 19.9%). In addition, our results suggest that crop residue return might be most effective in increasing crop yields and WUE in corn crops, crops with a tillage depth � 20 cm, crops grown with moderate nitrogen fertilization (0-150 kg ha-1), growth of a single crop per year, high soil organic matter content (� 15 g kg-1), and cold conditions (< 10˚C). Overall, the results of this meta-analysis suggest that crop residue return can increase crop yields and WUE, with the relationship being mainly affected by climatic conditions, plowing depth, fertilization management, crop types, and soil properties.

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“…The injector temperature was 230°C and the GC-MS interphase temperature was 280°C. Helium was used as carrier gas (Kang et al 2018;Li et al 2019).…”

Section: Experimental Materials and Methodsmentioning

confidence: 99%

“…Optical density (OD) was measured every 12 h for 480 h at 590 nm. The metabolic activity of microorganisms was determined by average well color development (AWCD) (Li et al 2019).…”

Section: Experimental Materials and Methodsmentioning

confidence: 99%

Assessing the Microbial Communities in Four Different Daqus by Using PCR-DGGE, PLFA, and Biolog Analyses

Ling

Tong

et al. 2020

Polish Journal of Microbiology

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Daqu made from raw wheat, barley or pea is used as an inoculum for the fermentation of Chinese Baijiu. In this study, the microbial communities of four different types of Daqus (sauce-flavor Wuling Daqu, sauce and strong-flavor Baisha Daqu, strong-flavor Deshan Daqu, and light-flavor Niulanshan Daqu) were analyzed by polymerase chain reaction-denaturing gradient gel electrophoresis (PCR-DGGE), phospholipid fatty acid (PLFA) analysis, and Biolog EcoPlates analysis (Biolog). Clear differences were seen between the microbial communities of the four Daqus. PCR-DGGE showed differences in the number and brightness of bands between the Daqus, indicating the presence of unique bacterial species in Deshan Daqu, Wuling Daqu, and Niulanshan Daqu. Lactobacillus sanfranciscensis, Bacillus thermoamylovorans, and some unclassified bacteria were unique to Wuling Daqu, Deshan Daqu, and Niulanshan Daqu, respectively. Moreover, some bacterial species were observed in all four Daqus. A total of 26 PLFAs between C12 to C20 were detected from the four Daqus by PLFA analysis. Wuling Daqu had the highest total and fungal biomasses, Baisha Daqu had the highest bacterial biomass, and Niulanshan Daqu had the highest ratio of fungal biomass to bacterial biomass. The Biolog results indicated differences in the carbon source use and mode of the four Daqus, and also demonstrated that each Daqu had varying abilities to utilize different types of carbon sources. The cluster analysis of the three methods showed that the microbial communities of the four Daqus were different. This study also demonstrates the applicability of the three analytical methods in the evaluating of the microbial communities of Daqus.

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Effects of straw management and nitrogen application rate on soil organic matter fractions and microbial properties in North China Plain

Cited by 59 publications

References 50 publications

Effects of Biochar and Straw Application on the Physicochemical and Biological Properties of Paddy Soils in Northeast China

Effects of Biochar and Straw Application on the Physicochemical and Biological Properties of Paddy Soils in Northeast China

A meta-analysis of the effects of crop residue return on crop yields and water use efficiency

Assessing the Microbial Communities in Four Different Daqus by Using PCR-DGGE, PLFA, and Biolog Analyses

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