Release and Sorption Pattern of Monosilicic Acid from Silicon Fertilizers in Different Soils of Louisiana: A Laboratory Incubation Study. Issue 12 (3rd July 2016)

• Record Type: Journal Article
• Authors: Babu, Tapasya; Tubana, Brenda; Datnoff, Lawrence; Yzenas, John; Maiti, Kanchan
• Is Part Of: Communications in soil science and plant analysis. Volume 47:Issue 12(2016)
• Page Start: 1559
• Page End: 1577
• Publication Date: 2016-07-03
• Subjects: Fertilizer -- monosilicic acid -- polymerization -- slag -- sorption; Soil science -- Periodicals; Plants -- Chemical analysis -- Periodicals; Agricultural chemistry -- Periodicals; 631.405
• DOI: 10.1080/00103624.2016.1194995
• Languages: English
• ISSNs: 0010-3624

Abstract

ABSTRACT: The amount of monosilicic acid (H4 SiO4 ), which is the plant-available form of silicon (Si), released from fertilizers can be influenced by Si source and soil properties. A series of laboratory experiments were conducted using six soil series from Louisiana to document the differences in the release characteristics of H4 SiO4 from wollastonite and slag. Monosilicic acid in solution released from slag declined with time while wollastonite consistently increased its concentration across all soil suspensions well above 40 µg mL −1 . Among these soil series, soils high in organic matter and clay were seen to have maximum percent sorption (up to 79%) with minimum polymerization of H4 SiO4 . The presence of ions like aluminum (Al) and magnesium (Mg) enhanced the process of H4 SiO4 polymerization, which led to a decrease in H4 SiO4 concentration in solution. Evident relationships were observed between H4 SiO4 concentration in solution with added Si sources and sorbed quantity from soil solutions.