Ammoniated straw returning: A win-win strategy for increasing crop production and soil carbon sequestration

Li, Jinchao; Li, Yue; Lin, Nanping; Fang, Yanxin; Dong, Qin’ge; Zhang, Tibin; Siddique, Kadambot H.M.; Wang, Naijiang; Feng, Hao

doi:10.1016/j.agee.2023.108879

Cited by 5 publications

(3 citation statements)

References 58 publications

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“…However, beyond this point, nitrogen can suppress microbial metabolic functions. Stalk material, with its high carbon-to-nitrogen ratio, decomposes slowly in soil [16]. Nitrogen application, therefore, plays a pivotal role in modulating soil microbial activity and, consequently, the decomposition of stalks [17].…”

Section: Introductionmentioning

confidence: 99%

Effects of Fertilization Practices on the Metabolic Functions of Soil Microbial Communities under Subsurface Irrigation with Stalk Composite Pipe

Wu,

Li,

Liu

et al. 2024

Agronomy

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To investigate the effect of nitrogen application and soil microbial activity on the decomposition process of stalk material in stalk composite pipes (SCPs) under subsurface irrigation with stalk composite pipes (SSI), in this study, a field experiment was conducted with two fertilization strategies—banding fertilization and SCP fertigation—at three nitrogen doses (126, 168, and 210 kg/ha), and the Biolog Ecoplate™ was employed to determine soil microbial activity. The results showed that under banding fertilization, the soil microbial activity at 20 cm subsoil and at the SCP wall increased with the increase in nitrogen dosage, ranging from 37.6% to 54.3% and from 21.5% to 23.7%, respectively. Under SCP fertigation, the soil microbial activity at 20 cm subsoil first showed a 58% surge, followed by a 3.9% decrease, with no significant variation in soil microbial activity at the SCP wall. Forty-five days later, the crude fiber content in the SCP wall under SCP fertigation was 17.6–26.3% lower than that under banding fertilization. Based on the comprehensive analysis of the soil microbial activity, SCP fertigation combined with high nitrogen application can accelerate the decay rate of straw in SCPs. This research can provide a reference for formulating irrigation and fertilization regimes for SSI.

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Section: Introductionmentioning

confidence: 99%

Effects of Fertilization Practices on the Metabolic Functions of Soil Microbial Communities under Subsurface Irrigation with Stalk Composite Pipe

Wu,

Li,

Liu

et al. 2024

Agronomy

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“…This region has mainly sandy soil with poor soil fertility and limited rainfall, which negatively affect soil quality and crop productivity [2]. Soil organic carbon (SOC) sequestration has been considered a potential pathway to improve soil quality and enhance the sustainability of dryland farming [3,4].…”

Section: Introductionmentioning

confidence: 99%

“…C concentration for bentonite was 0.4% 3. Roots estimated equal to 20% of oat straw biomass[33] 4. Stubble estimated equal to 10% of oat straw biomass 5.…”

mentioning

confidence: 99%

Soil Amendment Combining Bentonite and Maize Straw Improves Soil Quality Cropped to Oat in a Semi-Arid Region

Zhang,

Mi,

Zhao

et al. 2024

Agronomy

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Soil amendments have been proposed as an effective way to enhance soil carbon stocks on degraded soils, particularly in dryland farming areas. Soil organic carbon (SOC) plays an important role in improving soil quality, and soil aggregates are known to be crucial in sequestering and protecting SOC. However, how aggregation and protection of SOC by aggregates respond to a single application of bentonite combined with maize straw remains unknown, especially in the sandy soil of a semi-arid region. A three-year field experiment with four treatments [no amendment (CK), maize straw amendment addition only (T1, 6 Mg ha–1), bentonite amendment addition only (T2, 18 Mg ha–1), and maize straw combined with bentonite amendment (T3, 6 Mg ha–1 maize straw plus 18 Mg ha–1 bentonite)] was conducted in the Loess Plateau of China to assess the effects of bentonite and maize straw on aggregation and SOC. The results indicated that soil bulk density decreased by 2.72–5.42%, and soil porosity increased by 3.38–8.77% with three years of T3 application, especially in the 20–40 cm layer, compared with CK. T3 increased the amount of C input, SOC stock, and SOC stock sequestration rate by 1.04 Mg ha−1 y−1, 0.84–1.08 Mg ha−1, and 0.49 Mg ha−1 y−1, respectively, and it increased the mass proportions and aggregate-associated C stock of >0.25 mm aggregates by 1.15–2.51- and 1.59–2.96-fold compared with CK. Correlation analysis showed a positive correlation of total SOC stock with the C concentration of >2 mm, 0.25–2 mm, and 0.053–0.25 mm aggregates. Aggregates of various sizes in sandy soils have the potential for greater SOC stock. Our findings suggest that the application of maize straw (6 Mg ha–1) combined with bentonite (18 Mg ha–1) would be an effective management strategy to enhance the bulk soil C pools by improving the soil structure and thereby improving soil fertility.

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Crop rotation and green manure type enhance organic carbon fractions and reduce soil arsenic content

Kama,

He,

Nabi

et al. 2025

Agriculture, Ecosystems & Environment

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Ammoniated straw returning: A win-win strategy for increasing crop production and soil carbon sequestration

Cited by 5 publications

References 58 publications

Effects of Fertilization Practices on the Metabolic Functions of Soil Microbial Communities under Subsurface Irrigation with Stalk Composite Pipe

Effects of Fertilization Practices on the Metabolic Functions of Soil Microbial Communities under Subsurface Irrigation with Stalk Composite Pipe

Soil Amendment Combining Bentonite and Maize Straw Improves Soil Quality Cropped to Oat in a Semi-Arid Region

Crop rotation and green manure type enhance organic carbon fractions and reduce soil arsenic content

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