Temporal dynamics and compartment specific rice straw degradation in bulk soil and the rhizosphere of maize

Maarastawi, Sarah A.; Frindte, Katharina; Geer, Romy; Kröber, Eileen; Knief, Claudia

doi:10.1016/j.soilbio.2018.09.028

Cited by 38 publications

(20 citation statements)

References 61 publications

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“…This variability was explained by several factors related to soil type (p < 0.05), soil chemical characteristics (p < 0.05) and sampling times (p < 0.05) along a growing period of wheat. In accordance with our findings, several authors have reported the significant effects of these factors as well as spatiotemporal heterogeneity of microbial communities in soil [44][45][46][47].…”

Section: Effect Of Crop Successions On Microbial Abundances and Enzyme Activitiessupporting

confidence: 93%

Impacts of the Winter Pea Crop (Instead of Rapeseed) on Soil Microbial Communities, Nitrogen Balance and Wheat Yield

et al. 2020

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Due to legume-based systems improving several aspects of soil fertility, the diversification of agrosystems using legumes in crop succession is gaining increasing interest. The benefits of legumes aroused the interest of farmers in the association of the Economic and Environmental Interest Group (EEIG), who introduced the idea of using the winter pea instead of rapeseed in their crop succession. The aim of this study is to evaluate the effects of the winter pea compared to those of rapeseed, as a head crop of the rotation, on soil microbial communities, enzyme activities, nitrogen (N) balance and yields. The field experiment involved two farmer plots that were selected within the EEIG. In each plot, two crop successions, including winter pea–wheat and rapeseed–wheat with fertilized and unfertilized strips, were examined for two years. Three times a year, under the wheat crop, composite soil samples were collected at depths of 0–20 cm, for microbial abundance and enzyme activity analyses, and twice a year at a depth of 0–60 cm, for the measuring of the mineral N. The results showed that the rapeseed–wheat succession maintained or enhanced soil bacterial and fungal biomasses and their enzyme activities. The winter pea–wheat succession enriched the soil’s mineral N content more consistently than the rapeseed–wheat succession. The mineral N enhancement’s effect was maintained under the wheat crop. Overall, the impact of the winter pea was positive on the soil’s N dynamics, but wheat yields were equivalent regardless of the previous crop (winter pea or rapeseed with and without fertilization). In the Normandy region, as rapeseed requires a large amount of N fertilizer and pesticide to maintain the yield and quality of crop products, it is suitable to favor the introduction of the winter pea as the head crop of the rotation, which indirectly allows for a reduction in the costs of input production and use, the working time of farmers and environmental pollution.

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Section: Effect Of Crop Successions On Microbial Abundances and Enzyme Activitiessupporting

confidence: 93%

Impacts of the Winter Pea Crop (Instead of Rapeseed) on Soil Microbial Communities, Nitrogen Balance and Wheat Yield

et al. 2020

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“…In addition, an increase in microbial metabolism could be a reason for the increased soil humus and its components. This is because studies have reported that the decomposition of fresh straw increases the activity and abundance of soil microbial communities, which promotes the metabolism of microbial communities and the accumulation of their products [33,34]. Soil microbial residues and their products are important carbon sinks.…”

Section: Discussionmentioning

confidence: 99%

“…Soil microbial residues and their products are important carbon sinks. The amino sugars (AS) in the microbial cell wall are composed of 2%-7% carbon, which is closely related to the turnover of carbon-containing organic matter, such as soil organic matter [33]. The increase in microbial activity, in turn, promotes the decomposition of straw, and it is generally believed that fungi are more effective in the decomposition of straw [35].…”

Section: Discussionmentioning

confidence: 99%

Effects of Returning Granular Corn Straw on Soil Humus Composition and Humic Acid Structure Characteristics in Saline-Alkali Soil

Chen

Opoku-Kwanowaa

2020

Sustainability

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Returning straw plays an important role in protecting the environment and maintaining the sustainable development of agriculture. In this research, we explored the effects of returning granular corn straw on soil humus composition and humic acid structural characteristics in a typical saline-alkali soil. This study was conducted in Jilin province. A randomized block design consisting of nine plots with three treatments in three replicates was used for this study. The treatments were granular corn straw (GS), coarse corn straw (CS), and control (CK). The results show that treatments GS and CS both increased the contents of soil humus and its components in the soil compared to CK. However, treatment GS recorded the highest significant increase in soil humus carbon (HEC), fulvic acid carbon (FAC), and humic acid carbon (HAC) by 17.59%, 8.32%, and 26.51%, respectively. Comparing the two straw treatments, it was found that the relative intensities of treatment GS at 2920 and 2850 cm−1 were higher than treatment CS by 1.58% and 72.49%, respectively. The relative intensities of treatment GS at 1720 cm−1 and 1620 cm −1 were lower than treatment CS by 52.2% and 30.43%, respectively. Moreover, an analysis of soil humic acid (HA) through an infrared spectrum, fluorescence spectrum, and principal components analysis (PCA) showed that the application of straw makes the structure of HA aliphatic, simple, and younger, and also promotes the continuous renewal of humus. In this study, the application of granular corn straw effectively improved the soil humus content and humic acid structural characteristics and is thus highly recommended.

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“…com/, last access: 12 July 2021). Raw sequences were merged using FLASH version 1.2.7 (Magoc and Salzberg, 2011) and processed using Quantitative Insights Into Microbial Ecology (QIIME v.1.9.0; http://www.qiime.org/, last access: 10 December 2020) (Quast et al, 2013). Poor-quality sequences (average quality score < 25) and short sequences (< 200 bp) were removed.…”

Section: S Rrna Amplification For Illumina Sequencing and Data Processingmentioning

confidence: 99%

Changes in soil physicochemical properties and bacterial communities at different soil depths after long-term straw mulching under a no-till system

Zhou

Chen

et al. 2021

SOIL

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Abstract. Conservation tillage has attracted increasing attention over recent decades, mainly due to its benefits for improving soil organic matter content and reducing soil erosion. However, the effects of long-term straw mulching under a no-till system on soil physicochemical properties and bacterial communities at different soil depths are still unclear. In this 12-year experiment of straw removal (CK) and straw mulching (SM) treatments, soil samples were collected at 0–5, 5–10, 10–20, and 20–30 cm soil depths. The results showed that the contents of organic carbon (C), nitrogen (N), and phosphorus (P) fractions, and bacterial abundance significantly decreased, whereas pH significantly increased with soil depth. Compared with CK, SM significantly increased total N, inorganic N, available P, available potassium, and soil water content at 0–5 cm, total organic C content at 0–10 cm, and dissolved organic C and N contents at 0–20 cm. Regarding bacterial communities, SM increased the relative abundances of Proteobacteria, Bacteroidetes, and Acidobacteria but reduced those of Actinobacteria, Chloroflexi, and Cyanobacteria. Bacterial Shannon diversity and Shannon's evenness at 0–5 cm were reduced by SM treatment compared to CK treatment. Furthermore, SM increased the relative abundances of some C-cycling genera (such as Terracidiphilus and Acidibacter) and N-cycling genera (such as Rhodanobacter, Rhizomicrobium, Dokdonella, Reyranella, and Luteimonas) at 0–5 cm. Principal coordinate analysis showed that the largest difference in the composition of soil bacterial communities between CK and SM occurred at 0–5 cm. Soil pH and N and organic C fractions were the major drivers shaping soil bacterial communities. Overall, SM treatment is highly recommended under a no-till system because of its benefits to soil fertility and bacterial abundance.

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Temporal dynamics and compartment specific rice straw degradation in bulk soil and the rhizosphere of maize

Cited by 38 publications

References 61 publications

Impacts of the Winter Pea Crop (Instead of Rapeseed) on Soil Microbial Communities, Nitrogen Balance and Wheat Yield

Impacts of the Winter Pea Crop (Instead of Rapeseed) on Soil Microbial Communities, Nitrogen Balance and Wheat Yield

Effects of Returning Granular Corn Straw on Soil Humus Composition and Humic Acid Structure Characteristics in Saline-Alkali Soil

Changes in soil physicochemical properties and bacterial communities at different soil depths after long-term straw mulching under a no-till system

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