Long-term tillage and irrigation effects on aggregation and soil organic carbon stabilization mechanisms

Ferro, Nicola Dal; Stevenson, Bryan; Morari, Francesco; Müller, Karin

doi:10.1016/j.geoderma.2023.116398

Cited by 14 publications

(4 citation statements)

References 81 publications

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“…Higher values of both parameters were in CT compared to RT (Figure 4a,b), while the statistically significantly lower contents of HA1 and FA1 (fractions of free acids) were recorded in CT compared to RT (Figure 5). Non-complexed organic carbon was not only unprotected from decomposition, but also it was not a part of the mechanisms of protection of the soil structure [81]. Overall, the influence of tillage manifested more in the parameters of the soil structure in more productive soils (EF, MF, and MF) than in less productive ones (HL, ER, and EG), with the exception of the DS (Table 7).…”

Section: Differences In the Parameters Of Soil Structure With Depende...mentioning

confidence: 96%

Suitability of Various Parameters for the Determination of the Condition of Soil Structure with Dependence to the Quantity and Quality of Soil Organic Matter

et al. 2023

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Soil structure (SS) plays an important role in relation to climatic change, with the most important task the decreasing of CO2 in the atmosphere by carbon sequestration in the soil and the prevention of floods by better water infiltration into the soil. However, the evaluation of its condition is very different because of the various parameters and their inappropriate uses. The aim of this study was to determine the responses of the parameters of SS on the soil type and tillage system as the most important factors that influence it through changes in the soil organic matter and soil texture. The soil factor, which was represented by seven soil types (EF, Eutric Fluvisol; MF, Mollic Fluvisol; HC, Haplic Chernozem; HL, Haplic Luvisol; ER, Eutric Regosol; EG, Eutric Gleysol; DS, Distric Stagnosol), should be included in all evaluations of SS because of the specifics of each soil type. The tillage factor (shallow non-inversion-reduced, RT; deeper with inversion-conventional, CT) was chosen because of a high sensitivity of SS to soil disruption by cultivation, which represents high potential for the mitigation of climate change. The study included 126 sampling places in different parts of Slovakia on real farms (7 soil types × 3 localities × 3 crop rotations × 2 tillage systems × 2 soil depths). The soils were analysed for the aggregate fraction composition, particle size distribution, and parameters of organic carbon. The data of different parameters of SS were calculated and evaluated. The most sensitive parameter of the tested ones was the coefficient of structure (Kst), which manifested up to the level of the fractions of humus substances and indicated a better condition of SS in more productive soils than less productive soils. The coefficient of soil structure vulnerability (Kv) and mean weight diameter in water-resistant macroaggregates (MWDw) showed a worse condition of SS in the soils, which developed on Neogene sediments. A better condition of SS in RT was predicted particularly by the primary parameters (index of crusting, Ic; critical content of soil organic matter, St), and in CT, they were mainly the secondary parameters (Kst; water-resistant of soil aggregates, Kw). Overall, the suitability of the parameters of SS should be evaluated in relation to a specific soil type with its characteristics and should not be used universally.

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Section: Differences In the Parameters Of Soil Structure With Depende...mentioning

confidence: 96%

Suitability of Various Parameters for the Determination of the Condition of Soil Structure with Dependence to the Quantity and Quality of Soil Organic Matter

et al. 2023

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“…Relationships between soil organic matter and water-stable aggregates SOM is an important factor in uencing the formation of soil aggregates because it binds soil particles into aggregates and maintains their stability (Bronick and Lal 2005;Ferro et al 2023;Six et al, 2000;Tisdall and Oades, 1982). Overall, the SOM content is higher in the macro than in the microaggregates (Elliott 1986;Six et al 2000;Tisdall and Oades 1982).…”

Section: Soil Organic Matter In Water-stable Aggregatesmentioning

confidence: 99%

“…Soil management practices signi cantly interfere to the turnover of SOC (Jakab et al 2023) which alternates soil structure (Bronick and Lal 2005;Ferro et al 2023). Intensive tillage reduces the SOC content (Jakab et al 2023) and also degrades soil structure (Eze et al 2020) including vineyard soils (Šimanský et al 2016; 2022).…”

Section: Introductionmentioning

confidence: 99%

A field study on the management practices in a productive vineyard for efficient C sequestration and improved water resistance of soil structure

Šimanský,

Jonczak,

Bordoloi

et al. 2023

Preprint

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The current study explores the soil management practices in a productive vineyard in Slovakia from the viewpoint of soil organic matter and water resistance of soil structure. Five distinct management practices - Intensive tillage system (T); Intensive tillage system with poultry manure (T + M); Strip grass (G); Fertilization in lower rates of NPK (NPK1); and Fertilization in higher level of NPK (NPK2) - were adopted to observed growth of vine. During a period of 14 years, the soil samples were characterized to measure soil parameters including soil organic matter (SOM) and size fractions of water-stable aggregates. The application of NPK1 to grass strips appeared to result in highest improvements in SOM and soil structure while G between vines rows most effectively improved soil structure and C sequestration. Based on principal component analysis, soil organic carbon had a more significant influence on the content of water-stable aggregates than labile carbon. Intense changes in SOM took place in larger size fractions of water-stable macroaggregates more than 2 mm, while smaller water-stable macroaggregates below 2 mm and water-stable microaggregates were more stable.

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“…There is a growing agreement among experts that conservation tillage practices, such as minimum tillage and residue mulch, have significant benefits for soil health. For instance, minimum tillage leads to improved soil water and carbon storage, better aggregate stability, and increased saturated hydraulic conductivity while reducing bulk density compared to conventional tillage (Jalota et al, 2001;Hati et al, 2015;Dal Ferro et al, 2023). In addition, retaining crop residues in the field has a direct or indirect positive impact on soil quality by reducing soil erosion, conserving soil moisture, maintaining hydrothermal conditions, and increasing soil porosity and infiltration (Zhu et al, 2023).…”

Section: Introductionmentioning

confidence: 99%

Tillage-based nutrient management practices for sustaining productivity and soil health in the soybean-wheat cropping system in Vertisols of the Indian semi-arid tropics

Meena

Sharma

Singh

et al. 2023

Front. Sustain. Food Syst.

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To achieve higher crop production in a soybean-wheat cropping system, comprehensive knowledge of soil fertility status and its variability is crucial. However, a significant gap exists between the potential and actual productivity of this system in the Vertisols of Indian semi-arid tropics. Therefore, 2 years of field research were conducted to investigate how different crop management practices affect soil fertility in this cropping system. The trial was conducted using a randomized complete block design (RCBD) with five crop management practices: CAO (conservation tillage + organic nutrient and weed management), CAC (conservation tillage + chemical nutrient and weed management), CTC (conventional tillage + chemical nutrient and weed management), OCT (conventional tillage + organic nutrient and weed management), and PoPs (package of practices). Results showed that CAO significantly (p < 0.05) increased soil organic C (6.8 g kg−1), available N (129.5 mg kg−1), P (11.0 mg kg−1), K (232.6 mg kg−1), Fe (9.17 mg kg−1), and Mn (10.48 mg kg−1) at topsoil (0–15 cm) and deeper layers (15–60 cm). In contrast, CAC had significantly (p < 0.05) higher soil availability of Ca (5,072 mg kg−1) and Mg (901 mg kg−1) and Cu (0.84 mg kg−1). On the other side, PoPs resulted in the highest S (10.05 mg kg−1) and Zn (0.85 mg kg−1) availability in the topsoil. Our results evidently suggested S and Zn availability as key indicators of soil health sustenance in the present agroecosystem. Notably, CAC had significantly (p < 0.05) higher system productivity (4.62 t ha−1) than the other treatments, showing a 14.0, 6.3, and 18.2% increase over CAO, CTC, and OCT, respectively. Based on the results, it is recommended that CAC is a better option for achieving higher system productivity, while CAO is the best option for ensuring long-term sustainability of soil fertility. The findings of this study could be useful for farmers and agricultural researchers in designing efficient crop management practices to improve the productivity and sustainability of soybean-wheat cropping system in arid to semiarid ecology.

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Long-term tillage and irrigation effects on aggregation and soil organic carbon stabilization mechanisms

Cited by 14 publications

References 81 publications

Suitability of Various Parameters for the Determination of the Condition of Soil Structure with Dependence to the Quantity and Quality of Soil Organic Matter

Suitability of Various Parameters for the Determination of the Condition of Soil Structure with Dependence to the Quantity and Quality of Soil Organic Matter

A field study on the management practices in a productive vineyard for efficient C sequestration and improved water resistance of soil structure

Tillage-based nutrient management practices for sustaining productivity and soil health in the soybean-wheat cropping system in Vertisols of the Indian semi-arid tropics

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