Effects of tillage on contents of organic carbon, nitrogen, water-stable aggregates and light fraction for four different long-term trials

Andruschkewitsch, Rouven; Geisseler, Daniel; Koch, H.; Ludwig, Bernard

doi:10.1016/j.geoderma.2012.07.005

Cited by 72 publications

(31 citation statements)

References 63 publications

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“…NT increased the proportion of large macroaggregates (>2 mm), and this may be mainly due to the low rate of macroaggregate turnover (Six et al 2000). Additionally, the high proportion of large macroaggregates may be attributed to dynamic equilibrium, which balances the formation and destruction of aggregates over time (Bronick and Lal 2005;Yoo and Wander 2008;Andruschkewitsch et al 2013). Residue C input can also promote soil macroaggregation (Bravo-Garza et al 2010;Zhang et al 2017).…”

Section: Soil Aggregation and Aggregate Stabilitymentioning

confidence: 99%

“…This is consistent with previous observations that no-tillage increases microaggregate formation within macroaggregates (Angers et al 1997;Six et al 1998;De et al 2008). The higher proportion of the <0.053 mm fraction under continuous CT may cause physical disruption of macroaggregate structures and increase the decomposition rate of formerly incorporated organic material (Andruschkewitsch et al 2013).…”

Section: Soil Aggregation and Aggregate Stabilitymentioning

confidence: 99%

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Inter-annual changes in the aggregate-size distribution and associated carbon of soil and their effects on the straw-derived carbon incorporation under long-term no-tillage

Yin

Zhao

Yan

et al. 2018

Journal of Integrative Agriculture

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Converting from conventional tillage to no-tillage influences the soil aggregate-size distribution and thus soil organic carbon (SOC) stabilization. However, the dynamics of soil aggregation and the straw-derived carbon(C) incorporation within aggregate fractions are not well understood. An experiment was established in 2004 to test the effects of two treatments, no-tillage with residue (NT) and conventional tillage without residue (CT), on the soil aggregate-size distribution and SOC stabilization in a continuous maize (Zea mays L.) cropping system located in the semiarid region of northern China. Soil samples were collected from the 0-10 cm layer in 2008, 2010 and 2015, and were separated into four aggregate-size classes (>2, 0.25-2, 0.053-0.25, and <0.053 mm) by wet-sieving. In each year, NT soil had a higher proportion of macroaggregates (i.e., >2 and 0.25-2 mm) and associated SOC concentration compared with CT. Additionally, to compare straw-derived C incorporation within NT and CT aggregate fractions, 13 C-labeled straw was incubated with intact NT and CT soils. After 90 days, the highest proportion of 13 C-labeled straw-derived C was observed in the >2 mm fraction, and this proportion was lower in NT than that in CT soil. Overall, we conclude that long-term continuous NT increased the proportion of macroaggregates and the C concentration within macroaggregates, and the physical protection provided by NT is beneficial for soil C sequestration in the continuous maize cropping system in semiarid regions of northern China.

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Section: Soil Aggregation and Aggregate Stabilitymentioning

confidence: 99%

Section: Soil Aggregation and Aggregate Stabilitymentioning

confidence: 99%

Inter-annual changes in the aggregate-size distribution and associated carbon of soil and their effects on the straw-derived carbon incorporation under long-term no-tillage

Yin

Zhao

Yan

et al. 2018

Journal of Integrative Agriculture

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“…Intercropping is also an efficient method to increase the amount of soil organic matter compared with conventional tillage systems (Fan et al, 2006;Beedy et al, 2010). Further research on animal compost, mulch-till and rotation has revealed that the enhancement of soil organic carbon storage is an important factor that influences the soil macro-aggregate content (Andruschkewitsch et al, 2013;Spaccini & Piccolo, 2013;Ba et al, 2014;Aksakal et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

Infiltration and Runoff Generation Under Various Cropping Patterns in the Red Soil Region of China

et al. 2015

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Soil and surface water runoff are the major causes of cropland degradation in the hilly red soil region of China. Appropriate tillage practices are urgently needed to reduce erosion and protect the soil surface. In this study, five tillage systems [manure fertiliser (PM), straw mulch cover (PC), peanut–orange intercropping (PO), peanut–radish rotation (PR) and traditional farrow peanut (PF)] were compared in terms of soil infiltration and the capacity to generate runoff. Based on field‐plot monitoring and simulated experiments, this study revealed that the organic content of the soil in the PO (19.43 g kg−1), PC (18·63 g kg−1) and PM (18·18 g kg−1) treatments increased compared with those of the PF (15·64 g kg−1) and PR (17.17 g kg−1) treatments. Moreover, the three tillage practices also enhanced the soil's aggregate stability and infiltration capacity. The average annual runoff generation rates of the treatments were as follows: PR (3,141 m3 ha−1 a−1) > PF (2,189 m3 ha−1 a−1) > PC (755 m3 ha−1 a−1) > PM (514 m3 ha−1 a−1) > PO (388 m3 ha−1 a−1). The PO treatment reduced the runoff generation rate by approximately 82·3% compared with that of the PF treatment. Among the treatments, the PO treatment had the highest threshold rainfall depth (22 mm) for runoff generation. Regression analysis revealed that the threshold rainfall depths linearly increased with the infiltration rates. The results of this study could benefit local soil management and cropland conservation. Copyright © 2015 John Wiley & Sons, Ltd.

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“…Burning crop residues in situ and as household fuel is a prevalent practice in many countries including China, either because the residues are no longer required as soil fertilizer (chemical fertilizers being readily available) or because rising labor costs make the other two options too expensive (Ma et al, 2010). Crop residues, a natural resource containing abundant organic C and mineral nutrients, can be returned to the soil for nutrient recycling and optimizing soil properties (Kumar and Goh, 1999; Andruschkewitsch et al, 2013; Choudhury et al, 2014; Yin et al, 2018). At the same time, crop residues can protect surface soil from the direct impact of rainfall and reduce evaporation of soil moisture by breaking the network of capillaries from subsoil to surface soil and by moderating the turbulent exchange between the air close to the soil surface and the atmosphere (Sharma et al, 2011).…”

mentioning

confidence: 99%

Yield Responses of Wheat to Crop Residue Returning in China: A Meta‐Analysis

Kang

Yin

et al. 2019

Crop Science

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Crop residue returning (CRR) is known to improve the soil environment and thus increase crop production. However, the impacts of CRR on wheat (Triticum aestivum L.) yield have been contrary at times due to the differences in climatic conditions, soil traits, and management practices. These effects were evaluated using 351 paired observations published in 161 papers comprising studies conducted in 19 provinces (autonomous regions) of China. No publication bias or extreme values were found in the data, indicating that the analysis results are highly reliable. Compared with the practice of no crop residue returning (NCRR), the practice of CRR increased wheat yield significantly, on average by 8.29%, and proved more beneficial in Northwest China and in regions with average annual precipitation of 200 to 400 mm, average annual temperatures >11°C, sandy loam soil, and rotation with legumes (soybean [Glycine max (L.) Merr.]–wheat and pea [Pisum sativum L.]–wheat). The following aspects of CRR and crop management conferred greater benefits in yield: continuing the practice for 3 to 6 yr (compared with 1–2, 7–10, and ≥11 yr), using the residues at 3 to 6 t ha−1 (compared with <3, 6–9, and > 9 t ha−1), chopped straw (compared with intact straw), rainfed conditions (compared with irrigated conditions), and applying N at 200 to 300 kg ha−1 (compared with <100, 100–200, and >300 kg ha−1). The yield increase was significantly higher when the residues were returned in the form of mulch (12.56%) and for spring wheat (11.90%) than plowing them back into soil (4.53%) and for winter wheat (7.09%). The meta‐analysis thus confirms the benefits of CRR in higher wheat yields in China and also suggests that the benefits of CRR are site specific.

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Effects of tillage on contents of organic carbon, nitrogen, water-stable aggregates and light fraction for four different long-term trials

Cited by 72 publications

References 63 publications

Inter-annual changes in the aggregate-size distribution and associated carbon of soil and their effects on the straw-derived carbon incorporation under long-term no-tillage

Inter-annual changes in the aggregate-size distribution and associated carbon of soil and their effects on the straw-derived carbon incorporation under long-term no-tillage

Infiltration and Runoff Generation Under Various Cropping Patterns in the Red Soil Region of China

Yield Responses of Wheat to Crop Residue Returning in China: A Meta‐Analysis

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