Potassium sulfite/potassium bisulfite (KS/KBS) liquid as starter, side-dress, broadcast, foliar and fertigation fertilizers
US8545591B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 10, 2012 |
| Grant date | Oct 1, 2013 |
| Priority date | — |
| Expiry date | May 10, 2032 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC05G5/23
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The present invention provides a new liquid fertilizer comprised of potassium sulfite and potassium bisulfite, with neutral to slightly alkaline pH, relatively lower salt index and potentially lower phytotoxicity damage compared to other sources of potassium and sulfur products applied in equal amounts as a starter fertilizer. More specifically, the present invention further relates to methods for fertilizing using a composition of potassium sulfite and potassium bisulfite, particularly as a starter fertilizer, in-furrow fertilizer, side dress fertilizer, and for foliar, broadcast, soil injection and fertigation applications. The fertilizer composition is comprised primarily of potassium sulfite and potassium bisulfite (with the fertilizer grade of 0-0-23-8S).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.