Superphosphate - an overview | ScienceDirect Topics
Superphosphate is a chemical fertilizer produced from rock phosphate ore by treatment with sulfuric acid. It is a source of phosphorus for crops and comes in different forms such as ordinary superphosphate and triple superphosphate. AI generated definition based on: Encyclopedia of Analytical Science (Third Edition), 2019
Effect of superphosphate addition on heavy metals speciation and ...
Sep 1, 2022 · The RI suggested that adding superphosphate at 10% ratio had lower effect on heavy metal risk but superphosphate addition at 10–26% increased 3–4 times potential ecological risk of heavy metals. The previous studies showed that KH 2 PO 4 addition with a wet mass ratio of 2.5% had a strong passivation effect on Zn and Cu by stabilizing Zn 3 ...
Effects of woody peat and superphosphate on compost maturity …
Oct 1, 2017 · Calcium superphosphate drastically reduced the CH 4, NH 3 and H 2 S emissions but increased the N 2 O emission during composting of pig manure with woody peat as the bulking agent. By adding 10% calcium superphosphate, the emission of CH 4, NH 3 and H 2 S was reduced by approximately 35.5%, 37.
Effects of phosphogypsum, superphosphate, and dicyandiamide …
Dec 1, 2018 · Combination of superphosphate and dicyandiamide reduced NH 3, CH 4 and N 2 O emissions by 12.3%, 81.0% and 88.2%, respectively. More importantly, with the addition of 10% initial raw materials, phosphogypsum and superphosphate conserved nitrogen and improved compost quality by introducing additional nutrients.
Superphosphate, biochar, and a microbial inoculum regulate ...
Jun 10, 2022 · Superphosphate directly activated core functional bacteria and increased bacterial diversity and complexity (16 genera and 2 phyla), therefore markedly accelerated humification, decreased the salt (NH 4 + and NO 3 −) and heavy metal ion (Cu 2+, Cd 2+, Cr 3+) contents, formed stable substances, and finally decreased the phytotoxicity and ...
From the 1830's to 2011 and Beyond - ScienceDirect
Jan 1, 2012 · This enabled recycle ratio to be reduced to about 5/1. Modern plants have demonstrated that, with some tweaking of process conditions, this basic process can be operated at a recycle ratio of about 4/1. Figure 3 : Apparatus for ammoniation of superphosphate 169 David M. Ivell / Procedia Engineering 46 ( 2012 ) 166 – 171 3.
Microbial succession and molecular ecological networks response …
Feb 1, 2021 · In addition, superphosphate (SPP) is an acidic fertilizer that contains calcium phosphate, calcium sulfate, and free acid. SPP and PPG have been used widely as additives in composting systems to effectively reduce NH 3 and greenhouse gas emissions, and improve the quality of the final product (Yang et al., 2015; Yuan et al., 2018).
A novel FePO4 nanosized fertilizer is as effective as triple ...
Dec 5, 2023 · 1 Research Article A novel FePO4 nanosized fertilizer is as effective as triple superphosphate in sustaining the growth of cucumber plants Andrea CIURLI 1,5 , Laura GIAGNONI 2 , Davide SEGA 1 , Roberta PASTORELLI 3 , Zeno VARANINI 1, , Giancarlo RENELLA 4 and Anita ZAMBONI 1 1 Biotechnology Department, University of Verona, 37134 …
Chemical Fertilizer - an overview | ScienceDirect Topics
Superphosphate. Superphosphate is the first chemical fertilizer. It was first made in about 1840 from bonemeal and sulfuric acid. Shortly later, superphosphate was made from rock phosphate ore by treatment with sulfuric acid. This material is called ordinary superphosphate or single superphosphate and is 0-20-0-11S.
Superphosphate, biochar, and a microbial inoculum regulate ...
Jun 10, 2022 · Superphosphate markedly accelerated humification and decreased the salt (NH 4 + and NO 3 −) and heavy metal ion (Cu 2+, Cd 2+, Cr 3+) contents, forming stable substances to reduce the key phytotoxic matters, which in turn decreased the compost phytotoxicity and improved the GI. These results provide a new sight for promoting maturity by ...