Impact of no tillage and crop sequence on selected soil quality attributes of a vertic
calcixeroll soil in Morocco

Saber, Najib; Mrabet, Rachid

doi:10.1051/agro:2002026

Cited by 7 publications

(3 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…3). Likewise, these results are supported by previous studies (Saber and Mrabet, 2002;Shaver et al, 2002;Álvaro-Fuentes et al, 2008) that conclude that, in NT soils, the suppression of long fallowing can significantly increase surface OC and WAS.…”

Section: Resultssupporting

confidence: 88%

Dynamics of aggregate destabilization by water in soils under long-term conservation tillage in semiarid Spain

Blanco-Moure

Moret‐Fernández

López

2012

CATENA

View full text Add to dashboard Cite

Due to particular soil and climate conditions and inappropriate agricultural practices, Aragon (NE Spain) is a region prone to land degradation by water erosion. For this reason, the adoption of conservation tillage systems has been encouraged as an alternative to preserve soil and water in this region. However, little information concerning soils on which these techniques are applied is available. The main objectives of this study were to assess the effect of long-term no tillage (NT) on water aggregate stability in five different cereal production areas of Aragon and identify the main mechanisms involved on aggregate breakdown. The study was conducted under on-farm conditions where pairs of adjacent fields under NT and conventional tillage (CT) were compared. In all cases, a nearby undisturbed soil under native vegetation was included. Soils were slightly to highly calcareous with medium textures ranging from sandy loam to silty clay loam. Results indicate that NT increased surface aggregate stability with respect to CT systems through lower soil disturbance and higher organic carbon (OC) content at the soil surface (0-5 cm depth). Slaking was the dominant disaggregation process of the cultivated soils, representing 40-80% of total soil disruption, and was strongly and negatively affected by aggregate-associated OC. This soil property together with the silt content (weak and positive effect) explained more than 80% of the slaking variation. Swelling and clay dispersion were less frequent processes and their occurrence seemed to be associated with high silt and CaCO 3 contents. This study shows that, under the rainfed conditions of semiarid Aragon, NT reduces the susceptibility of soil surface to crusting and water erosion as compared to CT systems.

show abstract

Section: Resultssupporting

confidence: 88%

Dynamics of aggregate destabilization by water in soils under long-term conservation tillage in semiarid Spain

Blanco-Moure

Moret‐Fernández

López

2012

CATENA

View full text Add to dashboard Cite

show abstract

“…In Egypt, Labib et al (2001) observed that the SOC concentration was greater in soils growing cotton than those being intercropped. Several experiments conducted in northwest Africa have demonstrated the positive effects of conservation tillage systems on enhancement of the SOC pool (Mrabet, 2000;Mrabet and Franzluebbers, 2002;Mrabet et al, 2001aMrabet et al, , 2001bBessam et al, 2001;Saber and Mrabet, 2002). The data in Table IV from semiarid regions of Morocco show a SOC sequestration rate of 305 kg C ha À1 y À1 upon conversion from plow tillage to no tillage, and 102 to 270 kg C ha À1 y À1 upon adoption of continuous cropping, which including forages/legumes in the rotation cycle (Mrabet et al, 2001a(Mrabet et al, , 2001b.…”

Section: Conservation Agriculture and Soc Sequestrationmentioning

confidence: 97%

Carbon sequestration in soils of central Asia

Lal

2004

Land Degrad Dev

View full text Add to dashboard Cite

Problems of frequent drought stress, low soil organic carbon (SOC) concentration, low aggregation, susceptibility to compaction, salinization and accelerated soil erosion in dry regions are accentuated by removal of crop residues, mechanical methods of seedbed preparation, summer clean fallowing and overgrazing, and excessive irrigation. The attendant soil degradation and desertification lead to depletion of SOC, decline in biomass production, eutrophication/pollution of waters and emission of greenhouse gases. Adoption of conservation agriculture, based on the use of crop residue mulch and no till farming, can conserve water, reduce soil erosion, improve soil structure, enhance SOC concentration, and reduce the rate of enrichment of atmospheric CO 2 . The rate of SOC sequestration with conversion to conservation agriculture, elimination of summer fallowing and growing forages/cover crops may be 100 to 200 kg ha À1 y À1 in coarse-textured soils of semiarid regions and 150 to 300 kg ha À1 y À1 in heavy-textured soils of the subhumid regions. The potential of soil C sequestration in central Asia is 10 to 22 Tg C y À1 (16 AE 8 Tg C y À1 ) for about 50 years, and it represents 20 per cent of the CO 2 emissions by fossil fuel combustion.

show abstract

“…These include no-tillage, which involves sowing crops in undisturbed soil, without ploughing or turning the soil, leaving crop residues in the field and adopting crop rotation [20][21][22]. This agricultural technique offers a number of advantages, such as reducing costs and fuel consumption, as well as preserving soil quality [23][24][25], improving nitrogen levels [26][27][28], and increasing cereal crop yields [29][30][31].…”

Section: An Indispensablementioning

confidence: 99%

Nitrogen Use Efficiency Using the 15N Dilution Technique for Wheat Yield under Conservation Agriculture and Nitrogen Fertilizer

Maher,

Moussadek,

Zouahri

et al. 2023

Nitrogen

View full text Add to dashboard Cite

Conservation agriculture (CA), which could contribute to sustainable agriculture, maintains or improves soil nitrogen fertility by eliminating tillage (no-tillage). Quantitative assessment of soil constituents is enhanced by stable isotope techniques such as 15N, which are used to better understand nitrogen dynamics. This study was therefore carried out to assess the impact of tillage type and fertilizer application on soil and plant nitrogen fractionation. The trial consisted of two tillage types: no-tillage (NT) and conventional tillage (CT). Three nitrogen doses (82, 115, and 149 kg ha−1) were applied. The experimental design was a randomized complete block with three replications. The Louiza variety of durum wheat was used in this study. Soil nitrogen sequestration was assessed using the stable nitrogen isotope (15N) method. The statistical analysis (ANOVA) showed that, overall, there was no significant difference between tillage types and nitrogen doses for grain and straw yields and grain total nitrogen. In contrast, the effect of both factors and their interaction were significant for straw total nitrogen. There was no difference between tillage types for grain nitrogen use efficiency (NUE), even though NT was superior to CT by 3.5%, but nitrogen doses had a significant effect and a significant interaction with tillage type. When comparing nitrogen doses for each tillage type separately, results showed that the average NUE for grain was 20.5, 8.4, and 16.5%, respectively, for the three nitrogen doses for CT compared with 26.8, 19.0, and 30.6% for NT, indicating clearly the better performance of NT compared to CT. Regarding straw, the NUE is 3.2, 3.5, and 5.4% for CT compared with 3.4, 4.9, and 9.2% for NT. NUE in grain and straw under no-tillage was higher than under conventional tillage in all three nitrogen doses. These results show that soil conservation techniques such as no-tillage and the integrated application of nitrogen fertilizer can be good strategies for reducing soil nitrogen losses.

show abstract

Impact of no tillage and crop sequence on selected soil quality attributes of a vertic calcixeroll soil in Morocco

Cited by 7 publications

References 0 publications

Dynamics of aggregate destabilization by water in soils under long-term conservation tillage in semiarid Spain

Dynamics of aggregate destabilization by water in soils under long-term conservation tillage in semiarid Spain

Carbon sequestration in soils of central Asia

Nitrogen Use Efficiency Using the 15N Dilution Technique for Wheat Yield under Conservation Agriculture and Nitrogen Fertilizer

Contact Info

Product

Resources

About