Long-term straw and plastic film mulching have divergent effects on maize rhizosphere enzyme activity and bacterial community structure

Li, Yan; Zhang, Xuechen; Yang, Na; Hao, Hongyu; Bilyera, Nataliya; Zhang, Xucheng; Li, Tingliang; Yue, Shanchao; Zhai, Bingnian; Zamanian, Kazem; Li, Ziyan; Razavi, Bahar S.

doi:10.1016/j.agee.2024.108894

Cited by 6 publications

(5 citation statements)

References 96 publications

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“…The experimental site is located in a region with a typical semi-arid climate. The physicochemical properties of the topsoil (0-20 cm) before planting were as follows: pH 8.4, bulk density = 1.3 g cm −3 , SOC = 9.5 g kg −1 , total N (TN) =1.1 g kg −1 , total P (TP) = 0.9 g kg −1 , available N = 28.8 mg kg −1 and Olsen P = 20.7 mg kg −1 (Li et al, 2024).…”

Section: Site Descriptionmentioning

confidence: 99%

“…When applying topdress fertilizer, the required quantity for each row was determined and then applied next to each maize plant with a spreader. Both phosphate and potassium fertilizers were dispensed as foundational fertilizers before planting (Li et al, 2024). In the field, the maize seeds were sown at a depth of 5 cm, and to maintain a plant density of 65,000 plants ha −1 , seedlings were thinned.…”

Section: Experimental Design and Soil Samplingmentioning

confidence: 99%

“…Each fraction was subdivided into two portions, with one portion of the sample maintained at 4°C to evaluate enzyme activity and microbial biomass, while another portion underwent airdrying for the examination of its physicochemical properties. The methods for determining soil pH, soil organic carbon (SOC), total nitrogen (TN) and total phosphorus (TP) content can be found in our research procedures (Li et al, 2024;Ma et al, 2021).…”

Section: Soil Aggregate and Physicochemical Analysismentioning

confidence: 99%

“…Various mulching measures, such as straw and plastic film mulching, were widely used in these areas (Bu et al, 2013;. Various mulching methods influence the environmental conditions of the soil surface, which in turn impacts the availability of nutrients and has diverse effects on the activity of microorganisms and enzymes (Li et al, 2022(Li et al, , 2024Ma et al, 2021;Zhao et al, 2023). Straw mulching (SM) could regulate the limitation of soil microbial resources caused by the use of straw containing carbon (C), nitrogen (N) and phosphorus (P) (Wang et al, 2022;Zhao et al, 2022).…”

mentioning

confidence: 99%

“…Straw mulching (SM) could regulate the limitation of soil microbial resources caused by the use of straw containing carbon (C), nitrogen (N) and phosphorus (P) (Wang et al, 2022;Zhao et al, 2022). Straw mulching as a widely adopted mulching measure in dryland agriculture (Dong et al, 2018;Jia et al, 2021;Luo et al, 2015) enhances soil fertility by increasing the content of soil organic matter, total nitrogen, alkali-hydrolysable nitrogen, readily available phosphorus and potassium (Dhaliwal et al, 2019;Zhang et al, 2019Zhang et al, , 2020, while also promoting the enhancement of soil enzyme activity (Huo et al, 2023;Li et al, 2024). Furthermore, straw mulching plays a crucial role in promoting soil organic carbon accumulation (Ghimire et al, 2017), enhancing soil carbon sequestration capacity (Wang et al, 2018) and improving the efficacy of soil carbon and nitrogen nutrients (Wang et al, 2021).…”

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confidence: 99%

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Long‐term straw mulching alleviates microbial nutrient limitations and increases carbon‐use efficiency within aggregates

Li,

Zhang,

et al. 2024

Soil Use and Management

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Long‐term straw mulching was known to change soil nutrient content, aggregate distribution and extracellular enzyme activities. However, the impact of long‐term straw mulching on microbial nutrient limitations and carbon‐use efficiency (CUEst) within aggregates remains unclear. To fill the gap, we conducted a 10‐year field experiment in a semi‐arid region and used an ecoenzymatic stoichiometry model to quantify microbial resource limitations in soil aggregates under long‐term mulching. We studied the effects of two mulching measures (plastic film mulching [FM] and straw mulching [SM], with no mulching as the control [CK]) on the nutrient content and limitations within aggregates. The results show that compared with FM, SM increased the proportion of aggregates to larger >2 mm and decreased the proportion of aggregates in the 2–0.25 mm classes. Additionally, FM resulted in carbon (C) and phosphorus (P) limitations in the soil, particularly in the >2 mm class, while SM alleviated these constraints. This effect was primarily attributed to the increase in soil organic carbon (SOC) and microbial biomass carbon content (Cm), especially the enhanced carbon content associated with larger aggregates (>2 mm) and the increased activities of carbon–nitrogen (C–N)‐acquiring enzymes. SM also resulted in high CUEst by influencing microbial P limitation. Random forest analysis indicates that soil abiotic factors, particularly SOC and total nitrogen (TN), were the main drivers of microbial resource limitations within the aggregates. These findings suggest that the mulching material determines the development of soil aggregates and resource allocation within these aggregates. Thus, the study provides valuable insights for formulating effective carbon management strategies in semi‐arid regions.

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Section: Site Descriptionmentioning

confidence: 99%

Section: Experimental Design and Soil Samplingmentioning

confidence: 99%

Section: Soil Aggregate and Physicochemical Analysismentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

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Long‐term straw mulching alleviates microbial nutrient limitations and increases carbon‐use efficiency within aggregates

Li,

Zhang,

et al. 2024

Soil Use and Management

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Can dual mulching outperform single mulching in arid agriculture—Loess Plateau? A meta‐analysis based on crop yield and water use efficiency

Li,

Fan,

Liu

et al. 2024

Land Degrad Dev

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Field mulching is an important technique for dryland crop cultivation in the Loess Plateau (LP) of China, which alleviates the local agricultural water shortage. However, under different precipitation and temperature conditions, the effects of mulching on moisture conservation and yield enhancement are not consistent. A meta‐analysis was conducted to assess the variations of mulching across various variables (mulching types, rainfall precipitation and annual average temperature) based on data from 203 peer‐reviewed publications, including 1466 yield and 991 water use efficiency data points. The results indicated that compared with no mulching (CK), plastic mulching (PM), straw mulching (SM), and dual plastic and straw mulching (SPM) significantly increased both yield and water use efficiency (WUE), with SPM demonstrating the most substantial yield improvement. Under conditions of low temperature (<7°C), PM significantly improved both crop yield and WUE. Similarly, when temperatures were below 7°C and rainfall ranged from 400 to 600 mm, SM also significantly enhanced yield and WUE. Compared with PM, SM does not enhance yield and WUE under high‐temperature low‐precipitation (>12°C, ≤400 mm) and low‐temperature high‐precipitation (≤7°C, >600 mm) conditions. SPM outperforms SM and PM in enhancing yield and WUE under diverse hydrothermal conditions. Furthermore, we conducted green development assessment using the DPSIR model, and after 20 years of development, we found that green development potential of SM and SPM is greater than that of PM. Overall, SPM not only enhances crop yield and WUE but also serves as an effective replacement for PM, thereby boosting crop production in dryland agriculture. Its crucial role in advancing regional green development has been validated by scientific research.

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Supplementary irrigation with ceramic emitter promotes Platycladus orientalis growth by enhancing soil bacterial α diversity under extremely high-temperature

Zhang,

Liu

2024

Agricultural Water Management

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Long-term straw and plastic film mulching have divergent effects on maize rhizosphere enzyme activity and bacterial community structure

Cited by 6 publications

References 96 publications

Long‐term straw mulching alleviates microbial nutrient limitations and increases carbon‐use efficiency within aggregates

Long‐term straw mulching alleviates microbial nutrient limitations and increases carbon‐use efficiency within aggregates

Can dual mulching outperform single mulching in arid agriculture—Loess Plateau? A meta‐analysis based on crop yield and water use efficiency

Supplementary irrigation with ceramic emitter promotes Platycladus orientalis growth by enhancing soil bacterial α diversity under extremely high-temperature

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