Effects of Soluble Silicate and Nanosilica Application on Rice Nutrition in an Oxisol

Alvarez, Rita de Cássia Félix; Prado, Renato de Mello; Felisberto, Guilherme; Deus, Angélica Cristina Fernandes; Oliveira, Raimundo Leonardo Lima de

doi:10.1016/s1002-0160(18)60035-9

Cited by 22 publications

(9 citation statements)

References 28 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…1), with maximum accumulation (greater maximum value of 142.32 mg plant −1 , corresponding to silicon concentration of 1.34 g L −1 ) in comparison to the other sources. These results can be explained by the size of nanosilica particles, which is mostly (70%) 100 nm (Félix Alvarez et al 2018). This facilitates its foliar absorption in comparison to the other sources.…”

Section: Discussionmentioning

confidence: 92%

Different Sources of Silicon by Foliar Spraying on the Growth and Gas Exchange in Sorghum

Oliveira

Prado

Felisberto

et al. 2019

J Soil Sci Plant Nutr

Self Cite

View full text Add to dashboard Cite

The efficiency of silicon (Si) foliar spraying in sorghum plants can be increased with new sources that may enhance the uptake of the beneficial element with reflexes in physiology. This study investigated the effect of foliar application of Si on different sources of absorption, gas exchange, and growth in sorghum plants, based on the hypothesis that there is a differential response to specific sources and concentrations of Si. An experiment was conducted in a completely randomized design with three replicates (in triplicate). The treatments consisted of five Si sources (nanosilica, silicic acid, stabilized sodium, potassium silicate, and potassium silicate) and four concentrations of Si (0, 0.5, 1.0, and 1.5 g L −1 of Si). Foliar spraying of Si on sorghum plants was effective at increasing the absorption of the beneficial element and the gas exchange of the plant. Nanosilica stood out as an alternative source of Si, and a promising option for foliar spraying in sorghum crops, as it promoted high uptake of the element by the plant. This source also promoted a high photosynthetic rate for both potassium silicate and alkaline silicate. In this study, spraying of 0.88 g L −1 (Si-alkali) and 0.84 g L −1 (Si-potassium) on sorghum at the phenological stages V 4 and V 8 (four and eight fully expanded leaves respectively) and R 1 (beginning of flowering) was promising because it increased plant growth, reduced water loss through transpiration, and had a positive impact on gas exchange.

show abstract

Section: Discussionmentioning

confidence: 92%

Different Sources of Silicon by Foliar Spraying on the Growth and Gas Exchange in Sorghum

Oliveira

Prado

Felisberto

et al. 2019

J Soil Sci Plant Nutr

Self Cite

View full text Add to dashboard Cite

show abstract

“…The authors, citing some of their previous studies, concluded that the Si foliar application was not as performing as the application to soil, although confirming most of the findings despite to a lesser extent. The indirect influence of nano Si on plant nutrition was not confirmed on rice [86].…”

Section: Si Nanoparticles As Plant Nutrient Carriermentioning

confidence: 91%

Tools for Nano-Enabled Agriculture: Fertilizers Based on Calcium Phosphate, Silicon, and Chitosan Nanostructures

et al. 2021

View full text Add to dashboard Cite

The Green New Deal requires a profound transformation of the agricultural sector, which will have to become more sustainable and ensure universal access to healthy food. Thus, it will be essential to introduce radical technological innovations. Nanotechnologies have the potential to produce a significant boost to the improvement of the food system. Within this context, in the next years, a strong challenge will need to be faced regarding developing new and more efficient uses of nutrients in agriculture, being the nutrient use efficiency (NUE) paramount in sustaining high crop productivity without depleting biodiversity, and altering both the natural and agricultural systems. Nutrients leaching causes environmental pollution and water eutrophication, while nutrient excess favors pest and weed widespread. Therefore, it will be mandatory to improve plant nutrition efficiency without affecting agricultural productivity and economic sustainability. A promising alternative consists of the introduction of the so-called nanomaterial enhanced fertilizers and plant growth stimulators. Such innovation includes nanotechnological solutions that can improve nutrient delivery for a more finely tuned, accurate, and saving-resources distribution of nutrients. This review provides a critical view of the latest advances in nanofertilizer research, mainly referring to nano-hydroxyapatite, silica nanoparticles, and chitosan-derived nanostructures.

show abstract

“…Sideficient soils can be corrected by several sources that vary widely in total and plant-available silicon (Keeping 2017). Most research in Brazil tested calcium silicates and steel slag as Si fertilizers (Alvarez et al 2018;Camargo et al 2013;Deus and Büll 2013;Preston et al 2020). Such sources pose some drawbacks, such as low content of plant-available Si or high levels of heavy metals, requiring large amounts of fertilizer to reach the crop demand, or increase soil contamination risk.…”

Section: Introductionmentioning

confidence: 99%

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

View full text Add to dashboard Cite

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.

show abstract

Effects of Soluble Silicate and Nanosilica Application on Rice Nutrition in an Oxisol

Cited by 22 publications

References 28 publications

Different Sources of Silicon by Foliar Spraying on the Growth and Gas Exchange in Sorghum

Different Sources of Silicon by Foliar Spraying on the Growth and Gas Exchange in Sorghum

Tools for Nano-Enabled Agriculture: Fertilizers Based on Calcium Phosphate, Silicon, and Chitosan Nanostructures

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

Contact Info

Product

Resources

About