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Design of a Novel Fertilizer Made from Steelmaking Slag Using the Glassy Phase of the CaO–SiO 2 –FeO System. Part II: Evaluation of the Novel Fertilizer in a …
Silicate fertilizer derived from iron slag (hereafter, silicate fertilizer) as a soil amendment has been added to Korean and Japanese rice paddies to improve soil pH and supply nutrients to the crop. However, the consequences of silicate fertilizer application to soil organic carbon (SOC) stocks remain unclear.
The results showed that both slag-based Si fertilizers tested significantly increased rice growth and yield, but decreased brown spot incidence, with steel slag showing a stronger effect than iron ...
The steel slag fertilizer was applied as the basic fertilizer in each season before rice transplanting. First, steel slag fertilizer was incorporated well with 5.0 kg soil in each plastic pot. These pots were incubated for 30 days after addition of slags and watered daily with distilled water to maintain 2–3 cm submergence throughout the ...
This study investigated the long-term (31 years) effects of mineral slag fertilizer (fused magnesium phosphate [FMgP] and calcium silicate [CaSi]) application on changes in the main soil chemical ...
The feasibility of steel slag used as an iron fertilizer was studied in a pot experiment with corn. Slag alone or acidified slag was added to two Fe-deficient calcareous soils at different rates. Results showed that moderate rates (10 and 20 g kg −1 ) of slag or acidified slag substantially increased corn dry matter yield and Fe uptake.
Gordon's Liquid Lawn and Pasture Fertilizer with Micronutrients 20-0-0, 2.5 Gallon SKU: 420103099 Product Rating is 4.3 4.3 (56) $49.99 Was $49.99 Save Standard Delivery Same Day Delivery Eligible. Add to Cart Buy …
In agriculture, slags can be used as fertilizers and corrective of soil acidity [1]. Slags are calcium and magnesium silicates, which show neutralizing action due to. SiO. 3 2 . base [2 ...
It is well documented that slag-based silicon fertilizers have beneficial effects on the growth and disease resistance of rice. However, their effects vary greatly with sources of slag and are closely related to availability of silicon (Si) in these materials. To date, few researches have been done to compare the differences in plant ...
It is well documented that slag-based silicon fertilizers have beneficial effects on the growth and disease resistance of rice. However, their effects vary greatly with sources of slag and are closely related to availability of silicon (Si) in these materials. To date, few researches have been done to compare the differences in plant performance …
Tarmac AgSlag is a high quality, calcium rich product providing essential nutrients to soils in a slow release form. Used as a high-quality agricultural fertiliser since the 1920s with outstanding results in providing nutrients …
Moreover, the composition of the carbide slag was relatively simplistic, diminishing its value as a fertilizer (Table 1). Following the calcification leaching process, a significant decrease in the content of Ga and K was observed in the calcified residue, as a substantial amount of Ga and K from BCFA entered the alkaline solution and were ...
Abstract To recover degraded paddy fields, low-cost supplies of Ca, Si, and Fe are necessary. Steelmaking slag contains these three elements, which makes it a potential material for amending paddy soil. To simultaneously supply Ca, Si, and Fe to paddy field, the optimum slag chemistry as a fertilizer was found in our previous study …
Slag. A by-product from the industrial processing of iron and other alloys, slag is used as a source of plant silica due to its high solubility and concentration. It is usually a combination of silicon dioxide and metal oxides, but it can also contain metal sulfides and other metals depending on the refining process.
Phosphate slag is a glassy substance created during furnace processing. Because of its physical properties and its high carbonate content, slag is less susceptible to radionuclide leaching than phosphogypsum. However, concentrations of uranium, thorium and radium in phosphate slag have been measured as high as 1.85 Bq/g (50 pCi/g) in …
The preparation of ecological hydraulic brick with steel slag as aggregate not only solves the pollution problem caused by the massive accumulation of steel slag but also reduces the excessive dependence on sand and gravel aggregate. In this paper, the ecological hydraulic brick was prepared by replacing sand aggregate with steel slag after heat …
In this regard, the effect of steel slag based-fertilizer was investigated in the greenhouse durum wheat cultivation in pots under salt-stress conditions. Two slag doses: 10 g slag/ kg soil (D1) and 20 g slag/ kg soil (D2) were evaluated under no salt-stress (0 mM NaCl) and salt-stress conditions (100 mM NaCl) for salinity stress mitigation.
Water-soluble silicon fertilizer with an effective silicon content of 50-60% can be applied with 6-10 kg per acre; Steel slag silicon fertilizer with effective silicon content of 30-40% can be applied with 30-50 kg per acre;If the effective silicon content is less than 30%, 50-100kg can be applied per acre.
Slags are rich in Silicon (Si) and other fertilizer components, such as Ca, Fe, Mn, and P 2, 3, 4. These beneficial properties of the slag can be exploited to …
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Steel slag fertilizers were embedded in epoxy resin. Epoxy resin was ground and polished to expose the cross section of each fertilizer. After the fi rst EPMA analysis, this resin specimen was set ...
Silicate fertilizer made from industrial slag showed great promise in mitigating CH 4 emissions from paddies without scarifying yield, thereby converting a waste into a value-added product. With an understanding of the mechanisms by which slag-based silicate fertilizer suppresses CH 4 emissions, silicate fertilizer can be improved for …
Phosphate is an important nutrient for plants and is a key ingredient in most fertilizers. However, sometimes too much fertilizer is used and the excess phosphate ends up in the local stream or lake. …
Steel slag has been widely used as amendment and silicon fertilizer to alleviate the mobility and bioavailability of heavy metals in soil. The objective of this study was to evaluate the influence of particle size, composition, and application rate of slag on metal immobilization in acidic soil, metals uptake by rice and rice growth. The results …
In agriculture, slags can be used as fertilizers and corrective of soil acidity [ 1 ]. Slags are calcium and magnesium …
slag; (2) Si, Ca, Mg and Al distributed homogeneously in granulated blast furnace slag. X-ray diffraction (XRD) clarified that granulated blast furnace slag was amorphous. The content of plant-available Si in each slag fertilizer was evaluated by the cation exchange resin extraction method. It was the highest in depho-sphorization slag …
Slag-based silicate fertilizer has been widely used to improve soil silicon- availability and crop productivity. A consecutive early rice-late rice rotation experiment was conducted to test the impacts of …
The objective of current study is to evaluate the effectiveness of slag as a biostimulant to enhance drought tolerance of durum wheat (Triticum durum Desf.) plants. A greenhouse study was performed to address this issue. Two slag doses: 10 g/kg (D1) and 20 g/kg (D2) were evaluated under two moisture regimes (75 and 25% field capacity) for …
The effective utilization of slag fertilizer in agriculture to neutralize soil acidity, improve crop productivity, mitigate greenhouse gas emissions, and stabilize heavy metals in contaminated soils turns it into a high value added product in sustainable agriculture.
Coal gasification fine slag (CGFS) is a kind of industrial waste that is generated from entrained-flow coal gasification with a high content of 0.5 M hydrochloric acid (HCl)-extractable silicon (Si). Si fertilizer has been widely used in agriculture to enhance the mechanical properties and yield of crops. An evaluation was actualized by …
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