2024-03-11
urea-Making Your Own Hydroponic Nutrients
Masterblend 4-18-38 Tomato Special will provide our plants with the widest range of nutrients. In fact, this fertilizer can be somewhat used solely where the other can’t. However, there is very little nitrogen and magnesium in this fertilizer and no calcium and sulfur. If you want a general formula that works for all your crops, you’ll need to add the other two fertilizers. Epsom Salt will provide additional magnesium and sulfur. The company Masterblend does not manufacture Epsom Salt. Instead, they outsource to Powergrow for it. You don’t have to use Powergrow’s Epsom salt. But while all Epsom salt is composed of magnesium and sulfate, the ratio can vary, and there are different grades for human and agricultural use. Powergrow’s Epsom salt is 16% magnesium oxide, 9.7% magnesium, 32% sulfate, and 12.8% sulfur. Calcium Nitrate (15.5-0-0) delivers calcium and nitrogen. Again, Masterblend does not produce their own calcium nitrate, relying on Powergrow, but you don’t have to use there’s. Powergrow’s calcium nitrate is 15.% nitrogen (14.5% nitrate nitrogen & 1% ammoniacal nitrogen), 19% soluble calcium, and less than 1% chlorine.