Use of a zeolite synthesised from alkali treated kaolin as a K fertiliser: Glasshouse experiments on leaching and uptake of K by wheat plants in sandy soil

Zwingmann, Naoko; Mackinnon, Ian D.R.; Gilkes, Robert

doi:10.1016/j.clay.2011.06.004

Cited by 42 publications

(14 citation statements)

References 20 publications

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“…Other studies showed that zeolites served as stabilization agent in soybean growth, prevention of salinization (Khan et al ., ) and improved water availability in strawberry fields (Abdi et al ., ). Additions of synthetic zeolites saturated with K in Australia improved significantly the size of wheat in treated pots compared with control pots mainly due to slow release of K from the zeolites (Zwingmann et al ., ). Perlites mixed with zeolites exhibited a significant increase in lettuce yield due to increased N availability and decrease in K loss via leaching (Gul et al ., ).…”

Section: Introductionmentioning

confidence: 97%

The influence of compost and zeolite co‐addition on the nutrients status and plant growth in intensively cultivated Mediterranean soils

Litaor

Katz

Shenker

2017

Soil Use and Management

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The main objective of the study was to test the benefits of compost and zeolite co-addition on the fertility of organic-rich Mediterranean soils. Previous pot study in greenhouse found that zeolites mixed with compost significantly improved potassium availability as well as exchangeable potassium capacity in the soils. To further test this finding, a field experiment was conducted using potatoSolanum tuberosum L., desiree cultivar in peat soils of the Hula Valley, Israel. Adhering to the protocol of the greenhouse experiments, the treatments included 5% compost addition with no zeolites, 2% zeolite addition without compost, co-addition of 5% compost mixed with 2% zeolites and control. We found that compost addition increased significantly the potatoes yield and the number of large tubers; however, the zeolite addition had no impact on yield. Co-addition of compost and zeolites did not improve total crop yield or number of large tubers compared with compost addition only. The results are consistent with nutrients availability (N, P, K) across the treatments. In a commercialized field using the experiment conditions, the 2% zeolite addition would amount to 18 ton of zeolites per hectare. Hence, we conclude that soil amendment with the tested zeolite might be beneficial to improve soil retention for cationic nutrients (e.g. K + ) under high leaching systems such as plant culture in pots, but in the field with high loads of compost, its effect is minor.

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Section: Introductionmentioning

confidence: 97%

The influence of compost and zeolite co‐addition on the nutrients status and plant growth in intensively cultivated Mediterranean soils

Litaor

Katz

Shenker

2017

Soil Use and Management

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“…In controlled glasshouse trials, Zwingmann et al [7] showed that the exchange performance of zeolite N is 11 times higher than natural zeolite clinoptilolite under the same conditions. In other trials, Zwingmann et al [8] showed that K from zeolite N is available for plants and is released by cation exchange, particularly when NH 4 + , Ca 2+ and Mg 2+ are present in a nutrient solution.…”

Section: Introductionmentioning

confidence: 99%

The Exchange Mechanism of Alkaline and Alkaline-Earth Ions in Zeolite N

Khosravi

Murthy

2019

Molecules

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Zeolite N is a synthetic zeolite of the EDI framework family from the more than 200 known zeolite types. Previous experimental laboratory and field data show that zeolite N has a high capacity for exchange of ions. Computational modelling and simulation techniques are effective tools that help explain the atomic-scale behaviour of zeolites under different processing conditions and allow comparison with experiment. In this study, the ion exchange behaviour of synthetic zeolite N in an aqueous environment is investigated by molecular dynamics simulations. The exchange mechanism of K+ extra-framework cations with alkaline and alkaline-earth cations NH4+, Li+, Na+, Rb+, Cs+, Mg2+ and Ca2+ is explored in different crystallographic directions inside the zeolite N structure. Moreover, the effect of different framework partial charges on MD simulation results obtained from different DFT calculations are examined. The results show that the diffusion and exchange of cations in zeolite N are affected by shape and size of channels controlling the ion exchange flow as well as the nature of cation, ionic size and charge density.

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“…Nanomaterial-enhanced fertilizers may increase plant-uptake efficiency of nutrients and/or reduce the adverse impacts of conventional fertilizer application (Liu and Lal, 2015). Nutrient-augmented-zeolites are an important example for this group (Malekian et al, 2011; Perrin et al, 1998; Zwingmann et al, 2011). Nano-porous properties of zeolites confer a high specific surface area and a high selection toward plant macronutrients, which may be slowly released for specific plant uptake, thus reducing nutrient loss and environmental risks and improving their efficacy.…”

Section: Nanotechnology Enabled Agrochemicalsmentioning

confidence: 99%

Nanotechnology in agriculture: Opportunities, toxicological implications, and occupational risks

Iavicoli

Leso

Beezhold

et al. 2017

Toxicology and Applied Pharmacology

397

140

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Nanotechnology has the potential to make a beneficial impact on several agricultural, forestry, and environmental challenges, such as urbanization, energy constraints, and sustainable use of resources. However, new environmental and human health hazards may emerge from nano-enhanced applications. This raises concerns for agricultural workers who may become primarily exposed to such xenobiotics during their job tasks. The aim of this review is to discuss promising solutions that nanotechnology may provide in agricultural activities, with a specific focus on critical aspects, challenging issues, and research needs for occupational risk assessment and management in this emerging field. Eco-toxicological aspects were not the focus of the review. Nano-fertilizers, (nano-sized nutrients, nano-coated fertilizers, or engineered metal-oxide or carbon-based nanomaterials per se), and nano-pesticides, (nano-formulations of traditional active ingredients or inorganic nanomaterials), may provide a targeted/controlled release of agrochemicals, aimed to obtain their fullest biological efficacy without over-dosage. Nano-sensors and nano-remediation methods may detect and remove environmental contaminants. However, limited knowledge concerning nanomaterial biosafety, adverse effects, fate, and acquired biological reactivity once dispersed into the environment, requires further scientific efforts to assess possible nano-agricultural risks. In this perspective, toxicological research should be aimed to define nanomaterial hazards and levels of exposure along the life-cycle of nano-enabled products, and to assess those physico-chemical features affecting nanomaterial toxicity, possible interactions with agro-system co-formulants, and stressors. Overall, this review highlights the importance to define adequate risk management strategies for workers, occupational safety practices and policies, as well as to develop a responsible regulatory consensus on nanotechnology in agriculture.

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Use of a zeolite synthesised from alkali treated kaolin as a K fertiliser: Glasshouse experiments on leaching and uptake of K by wheat plants in sandy soil

Cited by 42 publications

References 20 publications

The influence of compost and zeolite co‐addition on the nutrients status and plant growth in intensively cultivated Mediterranean soils

The influence of compost and zeolite co‐addition on the nutrients status and plant growth in intensively cultivated Mediterranean soils

The Exchange Mechanism of Alkaline and Alkaline-Earth Ions in Zeolite N

Nanotechnology in agriculture: Opportunities, toxicological implications, and occupational risks

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