Liquid phosphite fertilizer
US9663409B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 27, 2014 |
| Grant date | May 30, 2017 |
| Priority date | — |
| Expiry date | Jun 27, 2034 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC05D9/00
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A water soluble liquid fertilizer concentrate is provided that includes a bio-available phosphorus source, said phosphorus source consisting essentially of a phosphite salt. At least one of a bio-available nitrogen source and a bio-available potassium source are also provided. At least one micronutrient of calcium, magnesium, cobalt, iron, manganese, copper, boron, zinc, or molybdenum is present in the concentrate as an aqueous solute or soluble chelates. In some embodiments, the at least one phosphite salt is present at between 30 to 57 total weight percent dissolved in water and optionally contains a phosphate salt. A process of fertilizing a crop includes diluting the fertilizer concentrate with water to obtain a liquid fertilizer solution. The liquid fertilizer solution is then applied to the crop and after by allowing sufficient time, the fertilizer solution promotes growth of the crop.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.