Soil conditioners
US4985060A · kind A · utility
Assignees
Inventor
Key dates
| Filing date | Oct 24, 1989 |
| Grant date | Jan 15, 1991 |
| Priority date | — |
| Expiry date | Oct 24, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S106/01
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The soil conditioner of this invention is basically composed of 4 to 4.75 parts by weight of coal ash, 4 to 4.75 parts by weight of slag, and 0.5 to 2 parts by weight of zeolite, and is useful for the overall improvement of soil including not only chemical and physical conditioning of the soil but also improvement of its ecological system. In addition to the aforesaid ingredients, this soil conditioner may contain a microorganism having the function of competing with the harmful microorganisms present in the soil or utilizing them as nutrient sources to eliminate the detrimental effects thereof, thereby inducing the propagation of useful microorganisms in the rhizosphere of the desired crop and promoting the growth of the crop, as well as 0.2 to 2% by weight of molasses based on the total weight of the coal ash, slag and zeolite.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.