·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 indicated that application of slag
·The effect of steel slag based fertilizer was investigated on greenhouse durum wheat cultivar under salt stress conditions Two doses of slag 10 g slag/ kg soil D1 and 20 g slag/ kg soil D2
·Each slag fertilizer was crushed with a ball mill to fine powder under 210 μm diameter One tenth of a gram of this fine powder of slag fertilizer and g of cation exchange resin were added into 400 mL of distilled water in a plastic bottle volume 500 mL The screw cap of the bottle was fastened This bottle was shaken at 100 rpm at 25°C
·Phosphorus P is a non replaceable nutrient element for plant growth but its reserves are limited [1] The P supply for agriculture is principally dependent on phosphate fertilizer and approximately 80% of the exploited phosphate rock was used for producing phosphate fertilizer [2] The reserves of easily exploitable high grade phosphate rock is quickly
·Because blast furnace slag contains fertilizer components CaO SiO 2 and MgO it is used in rice cultivation as calcium silicate addition to these three components steelmaking slag also contains components such as FeO MnO and P 2 O 5 and is used for a broad range of agricultural purposes including dry field farming and pastures in
Slag based silicate fertilizers are cost effective but more attention should be paid to their potential environmental risks which may arise from the heavy metals contained in the fertilizers Soluble potassium or sodium silicates are completely water soluble and can be used as foliar fertilizers but are usually too expensive for soil
·The study indicated that an appropriate application of CGFS as a Si resource to an agricultural field could be considered as a viable option for safe disposal of this industrial waste Coal gasification fine slag CGFS is a kind of industrial waste that is generated from entrained flow coal gasification with a high content of M hydrochloric acid HCl extractable
Basic Slag as a Fertilizer By F E Thompson Join Our Community of Science Lovers Sign Up for Our Free Daily Newsletter Email Address
·On the other hand steel slag as silicon fertilizer can not only promote the growth of crops but also inhibit the transport of heavy metal Cd in soil Tong Qian and others used steel slag as silicon fertilizer and calcium magnesium phosphate fertilizer The test showed that the compound fertilizer could greatly inhibit Cd pollution in paddy soil
·Steel slag fertilizer was applied at a rate of 200 and 400 g m −2 which led to an increased yield of about 8% for the rice planted compared with the rice planted without the slag fertilizer application; this increase extended another 4% when the applied amount of slag was doubled Gao et al 2015 Steel slag however contains trace
·The paper presents the basic characteristics of slag analyses and its modification by incorporating some essential plant nutrients and the possibility of its application as fertilizer was studied
·The application of argon oxygen decarburization AOD slag as a mineral fertilizer can be employed as an effective and environment friendly approach
The optimum slag structure which is the coexistence of the CaO SiO 2 FeO glassy phase and 2CaO·SiO 2 soil solution can be obtained by quenching the molten slag from 1573 K In this study to evaluate the effects of the above novel slag fertilizer on soil amendment a column test using an actual paddy soil was conducted
·Steel slag is a by product in the process of refining iron by Blast Furnace BF or Electric Arc Furnace EAF This by product can be used for various fields such as construction industry and agriculture This study aimed to observe the use of steel slag in agriculture as fertilizer lime and ameliorant in the soils
Here we reported the toxicity assessment of Mo slag as a mineral fertilizer for slag recycling in agricultural practices The results showed the following 1 Lower rates of slag % % and % fertilization especially % slag increased the activities of antioxidant enzymes superoxide dismutase catalase and peroxidase the
·Argon oxygen decarbonization AOD slag refers to a byproduct of stainless steel SS production which has caused considerable environmental stress Finding an effective approach for recycling AOD slag is essential to environmental safety In this work batch leaching tests were carried out to explore the leaching behavior of AOD slag and soil Pot experiments
·slag as Si fertilizer for lowland rice of the IR 64 variety on peat soil was conducted in Sanggau Regency West Kalimantan which showed that steel slag increased the production of dry
·Thermomagnesium TM or magnesium Mg silicate MgSiO 3 is a byprod uct of the nickel Ni industry As a fertilizer TM elevates the pH of acidic soils as well as provides Mg and silicon Si
·Calcium silica slag CSS is a highly alkaline residue rich in calcium generated during the chemical pre desilication process of medium and low grade bauxite Direct use of CSS as silica fertilizer could cause soil pH imbalances phosphorus immobilization and reduced dissolution rates of elements such as magnesium manganese and copper
·Potentially toxic element PTE pollution is a major abiotic stress which reduces plant growth and affects food quality by entering the food chain and ultimately poses hazards to human health Currently the use of slag in PTE contaminated soils has been reported to reduce PTEs and toxicity in plants This review highlights the role of slag used as a fertilizer for better
Abstract Fertilizers made of steelmaking slag are important inexpensive materials for recovering degraded paddy fields The results of our previous works showed that essential Ca and Si elements were effectively supplied by the dicalcium silicate phase C 2 S while the glassy phase of the CaO SiO 2 FeO system served as an Fe source In this study we have developed a
·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 steel slag on soil pH silicon availability rice growth and metals immobilization in paddy soil Our results show that application of slag at a rate above higher or
·Historically the effective utilization of phosphorus in steelmaking slag began with Thomas converter slag as phosphorus fertilizer Since the P 2 O 5 content of Thomas slag was as high as 20% it could be directly crushed and used as a
·Application of the slag to paddy rice cultivation — Japan s first use of the general waste slag as fertilizer — Nipponsteel & Sumikin Engineering Technical Report Vol 9 2018 4/14 3 Fertilizer Components of DM Calcium Silicate One type of slag fertilizer for growing paddy rice is slag siliceous fertilizer registration name
