CONTROLLED RELEASE FERTILIZER COMPRISING PHOSPHATE BASED GLASS
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United States of America Patent
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Issued Date -
Jul 25, 2024
app pub date -
Apr 7, 2022
filing date -
May 5, 2021
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Abstract
A controlled release phosphate-based glass fertilizer composition includes at least one macro element selected from the group consisting of 28-50P2O5, 36>CaO, 25>SiO2, 0.1-10 Al2O3, 20>Na2O, and 20>K2O as a mole percent, an oxide selected from the group consisting of SO3 and MgO, and a microelement selected from the group consisting of Mn, Cu, B, Mo, Zn, and Fe. The controlled release phosphate-based glass fertilizer composition has a glass transition temperature which is adjusted above 230° C.
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