Bentonite clay combined with organic amendments to enhance soil fertility in oasis agrosystem

Karbout, Nissaf; Brahim, Nadhem; Mlih, Rawan; Moussa, Mouhamed; Bousnina, Habib; Weihermüller, Lutz; Bol, Roland

doi:10.1007/s12517-021-06765-5

“…This result is supported by Vidal et al's [49] viewpoint that the addition of the montmorillonite mineral additive with organic amendments might promote plant-derived OC transfer to the soil and thus enhance soil C stocks in the longer term. Similarly, Karbout et al (2021) [50] observed high SOC stock (2862 ± 3.4 g m −2 ) in oasis soil amended with bentonite clay combined with organic amendments (manure and compost) in the Fatnassa oasis in Tunisia. In the present study, the SOC sequestration efficiency in the maize straw combined with bentonite treatment was higher than that of other treatments.…”

Section: Effect Of Maize Straw Combined With Bentonite On C Input And...mentioning

confidence: 80%

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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“…Soil amendments by adding organic fertilizer as well as irrigation and crop rotation increased soil C-organic content and water-holding capacity [48]. Combining organic matter and clay minerals as sandy soil amelioration also increases the soil N content, improves soil fertility by forming microaggregates, influences soil acidity, and controls microbial activities [49], [50].…”

Section: B Experiments 1: Land Suitability Analysismentioning

confidence: 99%

Double Production of Shallot (Allium cepa L var. aggregatum) based on Climate, Water, and Soil Management in Sandy Land

Sutardi¹,

Pramono²,

Widodo³

et al. 2022

Int. J. Adv. Sci. Eng. Inf. Technol.

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The objective of this study was to double production by True Shallot Seed (TSS) in sandy land agro-ecosystems, widely adapted especially in temperate climate regions. Even though vegetative planting has been carried out using tubers in rice fields and dry land in Indonesia, not much has been done on sandy land. Another research gap also presents from the considerably low actual productivity (10-15 t ha -1 ) that still can be doubled (>20 -30 t ha -1 ) in sandy land. The study used three varieties (Lokananta, Bima, and Trisula) and carried out in three stages: characterization and identification of soil biophysical properties, an in-site study of the seed nursery system of TSS, and an assessment of cultivation development based on plant populations increasing production. This study resulted in TSS productivity 30.66-236.00% higher than average national productivity for all three varieties; this is a novel finding. TSS productivity on sandy land ranging from 14.831 to 28.178 t ha -1 was above the national average production at 10.48 t ha -1 of bulb-seed originated shallots. Thus, this result indicates that TSS seed planting system is more profitable, particularly for shallot seed producers (traders and farmers), aside from saving transportation costs. Another benefit is supporting planning and agronomy development, especially the progress of planting shallot from seeds in Indonesia.

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“…The majority of research regarding clay addition has been conducted on sandy soils, mostly in semi-arid and arid climates. Addition of clay to soils is reported to enhance their water-use efficacy (Al-Omran et al 2005;Suzuki et al 2007), increase the soil water content (Mi et al 2021), reduce the hydrophobicity of sandy soils (Blackwell 2000;Cann 2000;McKissock et al 2002;Shanmugam and Abbott 2015), foster the formation of organo-mineral complexes (Reuter 2001), reduce soil erosion and restrain land degradation (Pi et al 2021), and increase CEC and soil organic matter content (Hall et al 2010;Karbout et al 2021;Schapel et al 2018). Clay amendment also led to improved plant nutrition, in particular for K, and enhanced water infiltration and water distribution (Hall et al 2010).…”

Section: Introductionmentioning

confidence: 99%

Amending a tropical Arenosol: increasing shares of biochar and clay improve the nutrient sorption capacity

Beusch

¹

,

Melzer

²

,

Cierjacks

³

et al. 2022

Biochar

3

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Tropical Arenosols may be challenging for agricultural use, particularly in semi-arid regions. The aim of this study was to evaluate the impact of the addition of increasing shares of biochar and clay on the nutrient sorption capacity of a tropical Arenosol. In batch equilibrium experiments, the sorption of ammonium-N ($$\hbox {NH}_{4}^{+}{\text{-N}}$$ NH 4 + -N ), nitrate-N ($$\text {NO}_{3}^{-}{\text{-N}}$$ NO 3 - -N ), potassium ($$\text {K}^{+}$$ K + ), and phosphate-P ($$\text {PO}_{4}^{3-}{\text{-P}}$$ PO 4 3 - -P ) was quantified for mixtures of an Arenosol with increasing shares of biochar and clay (1%, 2.5%, 5%, 10%, 100%) and the unmixed Arenosol, biochar, and clay. The mid-temperature biochar was produced from Prosopis juliflora feedstock; the clayey material was taken from the sedimentary parent material of a temporarily dry lake. Only the Arenosol–biochar mixture with 10% biochar addition and the biochar increased the $$\text {NH}_{4}^{+}{\text{-N}}$$ NH 4 + -N maximum sorption capacity ($$q_{max}$$ q max ) of the Arenosol, by 34% and 130%, respectively. The $$q_{max}$$ q max of $$\text {PO}_{4}^{3-}{\text{-P}}$$ PO 4 3 - -P slightly increased with ascending biochar shares (1–10%) by 14%, 30%, 26%, and 42%, whereas the undiluted biochar released $$\text {PO}_{4}^{3-}{\text{-P}}$$ PO 4 3 - -P . Biochar addition slightly reduced $$\text {NO}_{3}^{-}{\text{-N}}$$ NO 3 - -N release from the Arenosol but strongly induced $$\text {K}^{+}$$ K + release. On the other hand, clay addition of 10% and clay itself augmented $$q_{max}$$ q max of $$\text {NH}_{4}^{+}{\text{-N}}$$ NH 4 + -N by 30% and 162%; ascending clay rates (1–100%) increased $$q_{max}$$ q max for $$\text {PO}_{4}^{3-}{\text{-P}}$$ PO 4 3 - -P by 78%, 130%, 180%, 268%, and 712%. Clay rates above 5% improved $$\text {K}^{+}$$ K + sorption; however, no $$q_{max}$$ q max values could be derived. Sorption of $$\text {NO}_{3}^{-}{\text{-N}}$$ NO 3 - -N remained unaffected by clay amendment. Overall, clay addition proved to enhance the nutrient sorption capacity of the Arenosol more effectively than biochar; nonetheless, both materials may be promising amendments to meliorate sandy soils for agricultural use in the semi-arid tropics.

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Bentonite clay combined with organic amendments to enhance soil fertility in oasis agrosystem

Cited by 8 publications

References 66 publications

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

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

Double Production of Shallot (Allium cepa L var. aggregatum) based on Climate, Water, and Soil Management in Sandy Land

Amending a tropical Arenosol: increasing shares of biochar and clay improve the nutrient sorption capacity

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