Can silicon in glacial rock flour enhance phosphorus availability in acidic tropical soil?

Gunnarsen, Klara Cecilia; Schjøerring, Jan K.; Gómez‐Muñoz, Beatriz; Neergaard, Andreas de; Jensen, Lars Stoumann

doi:10.1007/s11104-022-05399-0

Cited by 6 publications

(5 citation statements)

References 71 publications

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“…These changes could be the cause of the higher maize yield with glacial rock flour but absence of effect of reference K addition (Fig. 1), although soil physical effect or effects on the soil microbiome cannot be ruled out (Gunnarsen et al 2022).…”

Section: Glacial Rock Flour Increases Yieldmentioning

confidence: 99%

“…The plants may have also benefitted from Si released upon rock weathering (Gocke et al 2013;Cornelis and Delvaux 2016;Gunnarsen et al 2022). This is a field of growing interest, as Si can improve both plant nutrient uptake and nutrient use efficiency (Neu et al 2017;Aqaei et al 2020) as well as resistance to abiotic and biotic stressors, although the mechanisms are not yet fully understood (Tubana et al 2016;Puppe and Sommer 2018).…”

Section: Glacial Rock Flour Increases Yieldmentioning

confidence: 99%

“…The application of ground silicate minerals to agricultural soils has been proposed as a mechanism for improving crop yields and soil fertility through the addition of mineral nutrients and soluble silica, in addition to sequestering CO 2 through enhanced mineral weathering (Song et al 2014;Ramos et al 2017;Beerling et al 2018;Haque et al 2019Haque et al , 2020aAmann and Hartmann 2019;Kelland et al 2020;Jariwala et al 2022). The weathering of these minerals can be accelerated by incorporation into soils through the action of soil acids as well as root exudates and biologic activity in the rhizosphere (Harley and Gilkes 2000;Violante and Caporale 2015;Gunnarsen et al 2022). Though the fertilizing effect of the application of local minerals at lower application rates has been extensively studied in Brazil (Manning and Theodoro 2020;Ramos et al 2021), to date there have only been a limited number of studies examining the degree to which large applications of silicate minerals aimed at sequestering CO 2 through enhanced weathering will improve crop yields (Haque et al 2019(Haque et al , 2020bKelland et al 2020;Jariwala et al 2022).…”

Section: Introductionmentioning

confidence: 99%

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Greenlandic glacial rock flour improves crop yield in organic agricultural production

Gunnarsen

Jensen

Rosing

et al. 2023

Nutr Cycl Agroecosyst

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The application of mechanically crushed silicate minerals to agricultural soils has been proposed as a method for both improving crop yields and sequestering inorganic carbon through enhanced mineral weathering. In Greenland, large quantities of finely grained glacial rock flour (GRF) are naturally produced by glacial erosion of bedrock and deposited in easily accessible lacustrine and marine deposits, without the need for energy-intensive grinding. To determine if this material can improve crop yields, we applied 10 and 50 t GRF ha−1 to a sandy, organic agricultural field in Denmark. Two field trials were carried out to test the first-year yield response to GRF in both maize and potatoes, residual effects on potato yields in the year after application, and second and third-year residual effects on spring wheat. Reference-K treatments were included for comparison to determine if the beneficial effects of GRF were primarily due to its K content (3.5% K2O). This alternative source of silicate minerals improved crop yields in the year of application. Though there was no improvement in yield with the reference-K treatments, for each additional ton of GRF applied, maize dry yield increased by 59 kg ha−1 and potato tuber yield by an additional 90 kg ha−1. No residual effects on crop yields were observed in the following years, but we suspect that benefits might persist over multiple seasons at sites with lower initial fertility. The increase in yields achieved with GRF could offset some of the costs of applying silicate minerals as a CO2 sequestration scheme.

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Section: Glacial Rock Flour Increases Yieldmentioning

confidence: 99%

Section: Glacial Rock Flour Increases Yieldmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Greenlandic glacial rock flour improves crop yield in organic agricultural production

Gunnarsen

Jensen

Rosing

et al. 2023

Nutr Cycl Agroecosyst

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“…Silicon application in planting furrows and total pot area promoted P uptake in the maize plants. Recently, some reports have shown the role of Si in nutrient availability, mainly due to soil acidity correction [40][41] and competition by adsorption sites with anions (e.g., phosphate). However, due the limited diffusion of P in the soil and low use-e ciency in tropical soils (~ 10-20%), it is possible that Si application increases the physiological traits of crops.…”

Section: Discussionmentioning

confidence: 99%

Silicon Application Methods Influence the Nutrient Uptake of Maize Plants in Tropical Soil

Silva

Deus

et al. 2023

Silicon

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The bene ts of applying silicon to plants under stressful conditions are recognized. However, few studies have shown the effect of supply and form of application of silicon on the nutrition of plants grown under ideal conditions. This study aimed to verify the effects of different methods of silicon application on the nutrient uptake of maize in two tropical soils. MethodsSilicon was supplied in three application methods (in the planting furrow, in the total pot area, and spraying) at two rates in maize plants in two tropical soil types. Thirty days after emergence, the contents of macronutrients, micronutrients, and silicon were evaluated. ResultsIn sandy soil, potassium silicate application contributed to an increase in N, P, K, Mg, Si, and Cu contents, whereas in clay soil, there was an increase in the plant contents of P, K, Ca, Mg, S, Cu, Si, and Mg. ConclusionIt was concluded that silicon application contributed to greater nutrient uptake in maize plants. Our study suggests that silicon application could be an important tool for increasing mineral fertilization in tropical soil conditions.

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“…Too low pH reduces the effectiveness of secondary macronutrients and increases the effective micronutrients in the soil. In addition, too low pH inhibits plant growth and not only reduces the uptake of macronutrients by the plant, but also hinders the utilization of micro-nutrients by the plant [9,10].…”

Section: Introductionmentioning

confidence: 99%

Effect of Soil pH on the Uptake of Essential Elements by Tea Plant and Subsequent Impact on Growth and Leaf Quality

Jia,

Wang,

Zhang

et al. 2024

Agronomy

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Tea plant is an acidophilic plant, and soil pH has an important effect on the absorption and enrichment of elements, tea plant growth and quality. In this study, rhizosphere soils and leaves of tea plants from 30 tea plantations were collected to determine soil pH and multi-element content of soil and leaves of tea plants, to obtain and validate key elements that are enriched by pH affecting tea plants, and to analyze the effects of pH on the growth and quality of tea plants. The results showed that soil pH significantly affected the enrichment of 15 elements by tea plants, and the enrichment coefficients of 11 elements (C, Mg, Si, N, P, Mn, Sr, Cd, S, Ca and Sb) tended to increase significantly with the increase of soil pH, while the opposite was true for the other four elements (Cu, Rb, Ba and Al). TOPSIS analysis showed that soil pH had the greatest effect on tea plant enrichment of seven elements, namely N (100%), Mn (43.32%), C (39.22%), P (27.66%), Sr (15.30%), Mg (13.41%) and Ba (10.47%). Pot experiments with tea seedlings also verified that soil pH significantly affected the enrichment of tea leaves for seven key elements. Moreover, with the increase of soil pH, the growth indexes, photosynthesis indexes and quality indexes of tea seedlings showed a significant upward trend. Interaction analysis showed that the enhanced enrichment of N, Mn, C, P, Sr and Mg by tea plants was beneficial to increase the photosynthetic capacity of tea plants, promote the growth of tea plants and improve the quality of tea leaves. This study provides an important theoretical basis for the cultivation and management of tea plants.

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Can silicon in glacial rock flour enhance phosphorus availability in acidic tropical soil?

Cited by 6 publications

References 71 publications

Greenlandic glacial rock flour improves crop yield in organic agricultural production

Greenlandic glacial rock flour improves crop yield in organic agricultural production

Silicon Application Methods Influence the Nutrient Uptake of Maize Plants in Tropical Soil

Effect of Soil pH on the Uptake of Essential Elements by Tea Plant and Subsequent Impact on Growth and Leaf Quality

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