Stable liquid N-P-K fertilizer composition and method of use
US4318729A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 10, 1980 |
| Grant date | Mar 9, 1982 |
| Priority date | — |
| Expiry date | Jan 10, 2000 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC05B7/00
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A liquid fertilizer composition which is storable for 6-8 months is prepared from an aqueous methylol urea containing solution and dibasic potassium phosphate. The methylol urea containing solution has a nitrogen content of approximately 15-35% by weight. The dibasic potassium phosphate adds the phosphorous and potassium components to form a complete fertilizer having a preferred N-P-K ratio of from about 6:1:1.33 to 18:1:1. It also stabilizes the methylol urea containing solution so that premature gelling and precipitation are avoided. As such, the liquid fertilizer is storable and easily applied through liquid application to a lawn.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.