Incorporating Molasses Into Your Watering/Feeding Schedule:
A typical dosage is to dissolve between one and two tablespoons of molasses per gallon of lukewarm water - cold water is not recommended, as lower temperatures make it more difficult to thoroughly dissolve the viscous syrup. If you are not certain how much to use, begin with only one or two teaspoons per gallon, increasing your dosage as the plant progresses. This prevents plant stress and the occurrence of nutrient burn-like symptoms in the early weeks of the veg phase. As plants generally require more potassium during the flowering phase, it makes sense to gradually increase the dosage once the plant has settled into its final stage of life.
This solution is most commonly fed to Cannabis plants in the final stages of flowering, although many gardeners employ a blackstrap solution from early in the vegetation stage, all the way through to harvesting. Before the plants enter the ground, watering the helpful carbs and micro-nutrients into your chosen plot is a good way to condition the soil and prepare it for nurturing your babies. When growing outdoors, note that molasses is an old hunter's stand-by that is used to attract - not repel - deer. Rodents, bear, moose or wild hogs may also be enticed, depending upon the wild animal population in your area.
Many growers are convinced that the syrup boosts trichome production. However, because the main benefits of molasses result from its soil-conditioning properties, a low-yet-regular dose is often adopted in organics gardens, from veg through flower. Up to one tablespoon (about fifteen mL) per gallon of water is acceptable for regular usage; some experts suggest that sporadic applications can be dosed as high as two tablespoons per gallon, especially during the flowering period. Be forewarned, though, that applying too much molasses to marijuana can cause iron toxicity, calcium lockout and other issues. Overdosing may also cause the taste of molasses to overtake the intrinsic flavor of certain strains, or result in a rotting and terrible-smelling grow room.
Some growers use molasses on their just-water days, or only during flushing periods, as combining new additives to scheduled, measured commercial nutes may cause unexpected pH fluctuations or other problems. Many veteran Cannabis growers insist that flushing should be done with water only - even if your flushing products are 'organic' - to preserve the inherent flavor of each strain and ensure that it dries, cures and smokes properly. However, molasses is a safe additive for the flushing phase and may actually assist the soil in this capacity.
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