Formulation of a slow-release fertilizer by mechanical activation of smectite/glauconite and urea mixtures

Rudmin, Maxim; Banerjee, Santanu; Yakich, Tamara; Tabakaev, Roman; Ibraeva, Kanipa; Buyakov, A. S.; Соктоев, Булат Ринчинович; Ruban, Alexey

doi:10.1016/j.clay.2020.105775

Cited by 26 publications

(17 citation statements)

References 57 publications

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“…The results of this research are comparable with the data obtained by the mechanochemical activation of smectite [29,[55][56][57], glauconite [27,36,58], palygorskite [19,59], and kaolinite [39,40,60] for application as modern polyfunctional fertilizers. Nitrogen is released from the composites at different rates for the duration of the experiments (Figure 6), which is probably due to various forms of nitrogen.…”

Section: Usefulness Of Composites As Smart Fertilizerssupporting

confidence: 87%

“…The creation of clay-based smart fertilizer is performed using different approaches, including milling [24,33,34,41], aqueous suspension technique [29], premixing the components, followed by extrusion and drying [52,54], mixing of bentonite and liquefied urea [55], and using irradiation method [35]. The previous mechanochemical activation tests were conducted with a mixture of smectite and urea in a 2:3 ratio [36]. It led to the creation of composites with different forms of nitrogen.…”

Section: Nanocomposites Made Up Of Smectite and Urea Mixturementioning

confidence: 99%

“…Compared to most synthetic products, clay minerals are cheap and easily available. Smectite (montmorillonite), kaolinite, and, to a lesser extent, palygorskite or attapulgite, vermiculite, and chrysotile, as well as glauconite, are found to be potential CRFs [5,28,30,[33][34][35][36].…”

Section: Introductionmentioning

confidence: 99%

“…The high surface charge and exchangeable structural sites (interlayer) in smectite facilitate nutrient exchange. Therefore, this geomaterial shows good sorption and ion-exchange properties [27,29,35,36,42]. It is used for "smart" fertilizer preparation by physical and mechanochemical methods involving dispersion and/or encapsulation techniques [21,40,43,44].…”

Section: Introductionmentioning

confidence: 99%

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Mechanical Activation of Smectite-Based Nanocomposites for Creation of Smart Fertilizers

et al. 2022

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This research presents the mechanical creation of smart fertilizers from a mixture of smectite and urea in a 3:2 ratio by using the planetary milling technique. The smectite–urea composites show intercalation between urea and mineral, which increases steadily with increasing activation time. A shift of X-Ray Diffraction basal reflections, intensities of Fourier transform infrared spectroscopy (FTIR) peaks, and weight losses in thermogravimetric analysis (TG) document the systematic crystallo-chemical changes of the composites related to nitrogen interaction with activation. Observations of the nanocomposites by scanning electron microscopy (SEM) and transmission electron microscopy (TEM) corroborate the inference. Nitrogen intercalates with smectite in the interlayer space and remains absorbed either within micro-aggregates or on the surface of activated smectites. Soil leaching tests reveal a slower rate of nitrogen than that of traditional urea fertilizers. Different forms of nitrogen within the composites cause their differential release rates to the soil. The formulated nanocomposite fertilizer enhances the quality and quantity of oat yield.

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Section: Usefulness Of Composites As Smart Fertilizerssupporting

confidence: 87%

Section: Nanocomposites Made Up Of Smectite and Urea Mixturementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Mechanical Activation of Smectite-Based Nanocomposites for Creation of Smart Fertilizers

et al. 2022

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“…Although FANA's are more stable, there needs to be more research on incorporating them within current agricultural practices such as with slow-release clays, chemical penetrants or surfactants similar to slow release fertilizers and pesticides (Ghosh et al, 2018;Hunter and Sinisterra-Hunter, 2018;Rudmin et al, 2020;Vega-Vásquez et al, 2020). Advances in medical applications includes nanoparticle-assisted delivery is rapidly developing a wide variety of molecules (Hammond et al, 2021;Mendonça et al, 2021).…”

Section: Future Directionsmentioning

confidence: 99%

Improving Suppression of Hemipteran Vectors and Bacterial Pathogens of Citrus and Solanaceous Plants: Advances in Antisense Oligonucleotides (FANA)

Hunter

Cooper²,

Sandoval-Mojica

et al. 2021

Front. Agron.

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We report on the development, evaluation, and efficient delivery of antisense oligonucleotide FANA (2′-deoxy-2′-fluoro-arabinonucleotide) RNA-targeting technology into citrus trees and potato plants for management of bacterial pathogens and arthropod pests. The FANA ASO technology is a single nucleotide strand of 20–24 nt in length that incorporates 2′F- chemically modifications of nucleotides, along with a phosphorothioate backbone and modified flanking nucleotides, in their structure called “gapmers,” produced by AUM LifeTech., Inc. These unique modified structures of FANA “triggers” enables gymnotic activity that self-delivers into cells, moving systemically in treated plants and insects, with significant suppression of their RNA targets. Reported is the FANA suppression of two plant-infecting bacterium Candidatus Liberibacter asiaticus, CLas (in citrus trees), and C. Liberibacter solanacearum, CLso (in potato and tomato). The CLas pathogen is associated with huanglongbing (a.k.a. Citrus Greening Disease), which causes severe loss of citrus trees, threatening global citrus production. The CLas bacterium is transmitted during feeding by the Asian citrus psyllid, Diaphorina citri (Hemiptera: Liviidae). CLso causes Zebra-Chip disease in potato and is transmitted by the potato psyllid, Bactericera cockerelli (Hemiptera: Triozidae). Infected citrus trees or potato plants were treated with aqueous FANA solutions applied as a soil drench, root-infusion, topical spray, tree trunk injection or by absorption into cuttings, detached leaves, and leaf disks. Plants showed significant reduction of each pathogen or symptom development in response to FANA treatments. Similarly, ingestion of FANA solutions designed specifically to CLas by insects via artificial diets produced significant titer reductions in infected citrus psyllid adults that resulted in reduction of CLas transmission. The unique properties of FANA ASO solves many of the problems of stability, cell entry, and binding affinity that plagues exogenous RNAi strategies. Breakthroughs in production methods are reducing costs enabling these ASO to expand beyond medical applications into agricultural treatments. Thus, FANA ASO may provide viable treatments in the response to crop pandemics, like huanglongbing in citrus that threatens global food production.

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Preparation of pH/temperature-responsive semi-IPN hydrogels based on sodium alginate and humic acid as slow-release and water-retention fertilizers

Hua

Wei

et al. 2023

Polym. Bull.

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Formulation of a slow-release fertilizer by mechanical activation of smectite/glauconite and urea mixtures

Cited by 26 publications

References 57 publications

Mechanical Activation of Smectite-Based Nanocomposites for Creation of Smart Fertilizers

Mechanical Activation of Smectite-Based Nanocomposites for Creation of Smart Fertilizers

Improving Suppression of Hemipteran Vectors and Bacterial Pathogens of Citrus and Solanaceous Plants: Advances in Antisense Oligonucleotides (FANA)

Preparation of pH/temperature-responsive semi-IPN hydrogels based on sodium alginate and humic acid as slow-release and water-retention fertilizers

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