Variation of the hydraulic properties and solute transport mechanisms in a silty-clay soil amended with natural zeolites

Colombani, Nicolò; Mastrocicco, Micòl; Giuseppe, Dario Di; Faccini, Barbara; Coltorti, Massimo

doi:10.1016/j.catena.2014.08.003

Cited by 37 publications

(22 citation statements)

References 56 publications

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“…A variety of applications have been examined for natural zeolites, including use as soil conditioners and slow release fertilizers (SRF) (Ming & Allen 2001). It is undeniable that the use of zeolites enhances the plant conditions by increasing the total CEC of the soil and its adsorption ability, retaining water and some of the most important plant nutrients such as nitrogen and potassium in the rizosphere to be used by plants as needed (Colella 2005;Li et al 2013;Colombani et al 2014). It also leads to a much more efficient use of fertilizers, reducing extensive losses, particularly in sandy soils (Lai & Eberl 1986;Eberl et al 1995;Polat et al 2004;Bernardi et al 2013;Manikandan & Subramanian 2014).…”

Section: Introductionmentioning

confidence: 99%

Characterization and evaluation of chabazite- and mordenite-rich tuffs, and their mixtures as soil amendments and slow release fertilizers

Stamatakis

Stamataki

Giannatou

et al. 2016

Archives of Agronomy and Soil Science

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In the present study, zeolite tuffs of diverse chemistry, mineralogy and origin were characterized and tested for their efficiency as slow release fertilizers (SRF) through a series of leaching tests. Mixtures of zeolite tuffs were created and tested as loamy soil additives, in order to evaluate any synergistic effect on their cation exchange capacity (CEC) and SRF properties. The studied materials were a chabazite-rich tuff (SOR), a mordenite-rich tuff (KIM), 3 mixtures of them (SOR/KIM 30/70, 50/50 and 70/30) and a commercial clinoptilolite-rich tuff (BLG). CEC (sodium acetate method) was 95.7 for BLG, 100.9 for KIM and 92.2 cmol kg -1 for SOR, while their mixtures displayed intermediate values. SRF values vary, with the SOR/KIM 30/70 exhibiting the slowest NH 4 + release in 29 days (1.7%) compared to the control sample (19%). Zeolites promoted PO 4 -3 release, while their selectivity for Mg 2+ and K + was clearly affected by their different structure and chemistry. BLG exhibited the strongest selectivity for Mg 2+ , having the lowest release (39%). The results demonstrate that mixtures of zeolite tuffs could have a potential use in agricultural processes, by improving parameters like: chemistry, mineralogy, CEC and SRF efficiency,and resulting in the production of a competitive and functional soil additive.

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Section: Introductionmentioning

confidence: 99%

Characterization and evaluation of chabazite- and mordenite-rich tuffs, and their mixtures as soil amendments and slow release fertilizers

Stamatakis

Stamataki

Giannatou

et al. 2016

Archives of Agronomy and Soil Science

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“…In this way, zeolitites can increase nitrogen use efficiency (NUE) and behave as slow-releasing fertilizers, resulting in a more sustainable agriculture, where the amount of fertilizers can be decreased without lowering the production yield [6][7][8][9][10][11][12]. Due to their physic-chemical characteristics, zeolitites can be used as soil conditioners, carriers of fertilizers, antibacterial agents, insecticides, pesticides, as enhancer of soil biological activity and additional reducer of the Sodium Adsorption Ratio (SAR) index [13][14][15][16][17][18][19]. A yield increases of up to 65% in several crops (sorghum, wheat, corn, rice, marrow, chard, basil, tomato, radish, watermelon, lettuce, sunflower) in soils amended with natural or NH 4 + -enriched zeolitite (NEZ) were reported by several studies [6,20,21].…”

Section: Introductionmentioning

confidence: 99%

15N Natural Abundance, Nitrogen and Carbon Pools in Soil-Sorghum System Amended with Natural and NH4+-Enriched Zeolitites

et al. 2019

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The use of rocks containing high amounts of natural zeolites (zeolitites) as soil amendment has been found as a valuable method for increasing agriculture sustainability. However, the potentialities and the effects of zeolitites on the biogeochemical cycles of nitrogen (N) and carbon (C) have still not been clearly addressed in the literature. The objective of this study was therefore to investigate the N and C pools and 15 N distribution in an agricultural soil amended with both natural and NH 4 + -enriched zeolitites with the aim of understanding their effects on the soil-plant system, during sorghum cultivation, under fertilization reductions. Zeolitites were applied to an agricultural soil both at natural state (5 and 15 kg m −2 ) and in an enriched state with NH 4 + ions from pig slurry (7 kg m −2 ). Both zeolitites at natural and enriched state increased soil cation exchange capacity and affected microbial biomass, causing an initial decrease of microbial C and N and then a possible increase of fungal population. N-NO 3 − content was lower in natural zeolitite treatments, that lead to a lower NO 3 − availability for denitrifying bacteria. Zeolitites slightly affected the fixed N-NH 4 + pool. δ 15 N turnover indicated that N from NH 4 + -enriched zeolitites remained in the soil until the growing season and that fertilizers partially substituted the fixed pool. Leaf δ 15 N content indicated that plants assimilated N from NH 4 + -enriched zeolitites and evidenced a higher fertilization recovery in natural zeolitite treatments. Organic C tended to be higher in all zeolitite treatment rhizospheres. In soils amended with zeolitites at natural state (at both application rates) sorghum yield was similar (+3.7%) to that obtained in the control while it was higher (+13.9%) in the plot amended with NH 4 + -enriched zeolitites.

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“…PAVLOVIĆ, KROGSTAD and RAJIĆ Different soil amendments have been reported to reduce the nutrient leaching, to increase the nutrient holding capacity and water retention 2,3 as well as to improve the drainage control of soils. 4 Among them, natural zeolites attract great attention due their unique adsorption, ion-exchange, and molecular sieving properties.…”

mentioning

confidence: 99%

“…8,9 The NH 4 -enriched natural zeolite was found to influence the physical and hydraulic properties of the soil and its use has been suggested as an adequate method for decreasing the chemical fertilizer application rates. 2 Also, due to a high water storage capacity, the use of zeolite contributes to water storage in soil, reducing the surface run-off and protecting soil from erosion. 10 The aims of the present work were to study the influence of the addition of natural zeolite -clinoptilolite (NZ) and its iron(III)-modified form (FeZ) to three different types of soils on the leaching of potassium and nitrate ions using the columns of amended soils.…”

mentioning

confidence: 99%

Applicability of zeolites in potassium and nitrate retention in different soil types

Pavlović

Krogstad

Rajić³

2017

JSCS

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Environmental protection and sustainable agricultural production require the use of inexpensive and environmentally acceptable soil supplements. Objectives of this study were to investigate the influence of the addition of the natural zeolite-clinoptilolite (NZ) and its iron(III)-modified form (FeZ) on the potassium and nitrate leaching from sandy, silty loam and silty clay soils. The zeolites were added in two amounts: 0.5 (FeZ) and 1.0 wt. % (NZ and FeZ). The experiments were carried out in columns organized in eight experimental systems containing unamended (control specimens) and amended soils. The concentration of K + and NO 3-N in the leachates was monitored during 7 days. The obtained results indicate that the K + and NO 3-N leaching mainly depends on the soil type and pH of the soil. The NZ and FeZ addition has the highest impact on the K + retention in the acidic sandy soil. The highest NO 3-N retention is obtained with FeZ in acidic silty loam soil. The K + leaching kinetics for all the studied soils follow the Avrami kinetics model with the parameter n < 1. This study demonstrates that NZ and FeZ can be a good soil supplement for the K + retention for all studied soils and in the NO 3-N retention for silty loam and silty clay soils.

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Variation of the hydraulic properties and solute transport mechanisms in a silty-clay soil amended with natural zeolites

Cited by 37 publications

References 56 publications

Characterization and evaluation of chabazite- and mordenite-rich tuffs, and their mixtures as soil amendments and slow release fertilizers

Characterization and evaluation of chabazite- and mordenite-rich tuffs, and their mixtures as soil amendments and slow release fertilizers

15N Natural Abundance, Nitrogen and Carbon Pools in Soil-Sorghum System Amended with Natural and NH4+-Enriched Zeolitites

Applicability of zeolites in potassium and nitrate retention in different soil types

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