Blackstrap molasses (unsulphered) is the best choice because it is the most nutritionally valuable of the various types of molasses since it contains the greatest concentration of sulfur, potash, iron, and micronutrients from the original cane material. So it's not just the sugar content that makes molasses useful, but its trace minerals.
Molasses is also an excellent chelating agent, which means that it can help convert some chemical nutrients into a form that's easily available for organisms and plants to use.
The blackstrap molasses (unsulphered) is a liquid molasses that can be used alone, or as a component in soil drenches, and can be an important addition to your organic fertilization program.
How To Use
Molasses is excellent when applied to the growing medium in conjunction with organic fertilizers. It feeds the plant root biology and also serve as an organic fungicide.
Application and Rates
1 tablespoon (15g) per 4 liter.
From 4th week of flowring all the way to harvest - With every watering
All other plants - Once a week
Since molasses has no preservatives fresh mixture should be made for every watering.