Use of Diatomaceous Earth as a Silica Supplement on Potted Ornamentals

Mills-Ibibofori, Taylor; Dunn, Bruce L.; Maness, Niels O.; Payton, Mark E.

doi:10.3390/horticulturae5010021

Cited by 8 publications

(4 citation statements)

References 25 publications

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“…2A and B) is probably due to the application of Si as ASF and the low Si content of the soil. Previous studies have confirmed the increased availability of Si in soils amended with amorphous silica-based fertilizers (Mills-Ibibofori et al 2019;Oliva et al 2020;Prakash et al 2016). Jeer et al (2020) found that the Si available in the soil increased between 33 and 44% after amending150 and 300 kg ha −1 of ASF to a clay loam soil.…”

Section: Discussionmentioning

confidence: 81%

Amorphous Silica-Based Fertilizer Increases Stalks and Sugar Yield and Resistance to Stalk Borer in Sugarcane Grown Under Field Conditions

Oliva

Silva

Araújo

et al. 2021

J Soil Sci Plant Nutr

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Silicon (Si) fertilization can mitigate biotic and abiotic stresses and increase the yield of sugarcane. Considering the low availability of Si in tropical soils and the large amounts of fertilizer required by Si accumulating crops, concentrated sources of Si with good solubility may lead to more profitable fertilization management. In this context, we assessed the potential of an amorphous silica-based fertilizer (ASF) on increasing the soil availability and uptake of Si by sugarcane, the growth parameters, the stalk and sugar yields, and the damage caused by stalk borer (Diatraea saccharalis F.). Additionally, Si effects on the accumulation of nutrients by sugarcane were evaluated. The field trial was carried out in a randomized block design with four replications. The ASF was applied at five rates (0, 125, 250, 500, and 750 kg ha −1 ). The evaluation of the plants was performed 12 months after planting. Silicon available content in the soil layers assessed (0.0-0.2 m and 0.2-0.4 m) increased with Si fertilization. The Si concentrations in leaves and stalks were up to 5-and eightfold higher in ASF-amended plants than the control. The Si fertilization increased N, P, K, Ca, Fe, Mn, Cu, and Zn concentrations. Sugarcane growth parameters showed a positive relationship with Si in plants; the height and stalk diameter and the dry leaf biomass were 50, 58, and 71% higher in the 750 kg ha −1 ASF compared to the control, respectively. ASF also increased the contents of fiber, total sugar, and recoverable sugar. The accumulation of Si in the stalk reduced significantly the damage caused by the stalk borer. The ASF rates increased the yield of stalks, total and recoverable sugar, and the stalk borer's resistance, having great potential to boost sugarcane performance in Si-depleted soils in northeast Brazil.

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Section: Discussionmentioning

confidence: 81%

Amorphous Silica-Based Fertilizer Increases Stalks and Sugar Yield and Resistance to Stalk Borer in Sugarcane Grown Under Field Conditions

Oliva

Silva

Araújo

et al. 2021

J Soil Sci Plant Nutr

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“…Therefore, the resulting polysicilic polymer, the amorphous biosilica, SiO 2 xnH 2 O, is in a metastable state and rapidly releases silicic acid in an aqueous environment [73]. Due to this characteristic, DE-based products were used to provide soluble silicon species, i.e., silicic acid and its dimers and trimers, to the plants by treatment in the rhizosphere [74][75][76] and phyllosphere [77]. Zeolites also release soluble silicon species.…”

Section: Discussionmentioning

confidence: 99%

“…A commercial DE product (Perma-Guard, Inc., Kamas, UT, USA), used as a soluble silicon supplement to the growing medium, increased the tolerance to water stress of potted ornamentals-black-eyed Susan, Rudbeckia hirta, dahlia, Dahlia Cav. × hybrid, and daisy, Gerbera jamesonii [76].…”

Section: Discussionmentioning

confidence: 99%

Effects of Siliceous Natural Nanomaterials Applied in Combination with Foliar Fertilizers on Physiology, Yield and Fruit Quality of the Apricot and Peach Trees

Moale¹,

Ghiurea

Sîrbu³

et al. 2021

Plants

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Siliceous natural nanomaterials (SNNMs), i.e., diatomaceous earth and natural zeolites, have a nanoporous structure with large active surfaces that adsorb cations or polarized molecules. Such nanoporous feature determines the effects related to SNNM utilization as low-risk plant protectants and soil improvers. This work used SNNMs from Romanian quarries as carriers for foliar fertilizers applied to stone-fruit trees, apricot and peach. We determined the effects of SNNMs on the physiology, yield and fruit quality of the treated stone-fruit trees. SNNM application determined impacts specific to the formation of particle films on leaves: reduced leaf temperature (up to 4.5 °C) and enhanced water use efficiency (up to 30%). Foliar fertilizers’ effects on yield are amplified by their application with SNNMs. Yield is increased up to 8.1% by the utilization of SNNMs with foliar fertilizers, compared to applying foliar fertilizer alone. Diatomaceous earth and natural zeolites promote the accumulation of polyphenols in apricot and peach fruits. The combined application of SNNMs and foliar fertilizer enhance the performance of peach and apricot trees.

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“…Rice hulls have been used to supplement Si (Boldt et al 2018;Frantz et al 2010;Jayawardana et al 2016;Sistani et al 1997;Somapala et al 2016), but their release rate is not well-studied. Diatomaceous earth has been used for pest control, but is not well-studied as a Si supplement (Mills-Ibibofori et al 2019;Pati et al 2016). Wollastonite is a naturally occurring calcium silicate mineral (CaSiO 3 ) that is approximately 51% SiO 2 (Vanderbilt Minerals, LLC 2018) and has shown promise as an Si amendment (Haque et al 2019(Haque et al , 2020.…”

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confidence: 99%

Dissolution of Silicon from Soilless Substrates and Additives

Dey,

Boldt,

Bugbee

2023

horts

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Silicon (Si) is a beneficial element that is usually ample in mineral soil solution, but it is minimally bioavailable from soilless substrates. Several Si additives are commercially available, but the rate of dissolution of Si is not well-characterized. The ideal additive would steadily release bioavailable Si over the crop lifecycle. We report the long-term (120 days) dissolution of Si from soilless substrates and substrate additives. Studies involving gently agitated containers with deionized water indicated that perlite, sphagnum peat, vermiculite, and coconut coir released less than 0.03 mmol Si per liter of substrate per day. Rice hulls and wollastonite (CaSiO3) had 7- to 130-times faster rates of dissolution in this system; therefore, they were further studied in peat-based media. Dissolution of Si from the addition of 1 g wollastonite per liter of peat peaked at day 10 at 2.1 mmol Si per liter of media per leaching event (15% by volume); then, it gradually decreased over 120 days. The peak dissolution of Si amended with 12% rice hulls was similar, but it gradually increased over time. The concentrations of nine heavy metals in plant tissue were compared with untreated control plants to determine wollastonite and steel slag. The concentration of some elements statistically increased, but all concentrations were well below the legal concentration limits of these elements for human consumption in the United States. These results indicate that both wollastonite and rice hulls steadily release Si for up to 4 months; therefore, they are good sources of Si for container-grown crops in soilless media.

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Use of Diatomaceous Earth as a Silica Supplement on Potted Ornamentals

Cited by 8 publications

References 25 publications

Amorphous Silica-Based Fertilizer Increases Stalks and Sugar Yield and Resistance to Stalk Borer in Sugarcane Grown Under Field Conditions

Amorphous Silica-Based Fertilizer Increases Stalks and Sugar Yield and Resistance to Stalk Borer in Sugarcane Grown Under Field Conditions

Effects of Siliceous Natural Nanomaterials Applied in Combination with Foliar Fertilizers on Physiology, Yield and Fruit Quality of the Apricot and Peach Trees

Dissolution of Silicon from Soilless Substrates and Additives

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