Urea | Comments |
---|---|
UREA: Description An organic nitrogen which has to be transformed in the root-area and which requires organic activity to do so, the right temperature and some time; Rockwool and Oasis hardly use it up because it is constantly washed out. OA87-201 | 0 |
UREA: Fertilizer A good cheap source of nitrogen ; it does not readily combine with other elements to produce salts nor does excessive amounts cause too much damage to the plants. OR80-185 | 0 |