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mcgeary organics HORTICULTURAL 5-4-3
Soil-less Media Fertilizer
McGeary's horticultural fertilizer consists of McGeary Organics 5-3-4 blended with micronutrients. This fertilizer will supply plants growing in soil-less medias such as peat, bark, or coir with nutrients that these substrates do not contain.
Note that this fertilizer is not allowed for use is soils by organic certifiers due to NOP regulations requiring a soil test that shows a need for micronutrients before micronutrients are added. Unlike most soil-less medias which are largely inert, it is essentially impossible to find a soil that requires all of the micronutrients contained in McGeary Organics Horticultural 5-3-4.
University of Maryland Study
***NOW OMRI LISTED***
General Recommendations
The guidelines below are general recommendations, for specific recommendations and best results refer to a recent soil test.
McGeary Organics Horticultural is formulated specifically for soil-less medias. Certified organic growers should not use this product in soils. The guidelines below are general recommendations, for specific recommendations and best results refer to a recent soil test.
Transplants
In most transplant applications 16 pounds per cubic yard (9.5 kg per cubic meter) of growing media is a good rate. Trials have shown that nitrogen will diminish at approximately 8 weeks depending on temperature and irrigation. It is therefore advisable to apply a top dress every 6 to 8 weeks at a rate of 1.25 oz per gallon (9.5 g per liter) of media.
Starting seeds
Although McGeary Organics Horticultural 5-3-4 has been successfully used at the transplant rate listed above to start seeds, it might be advisable to halve the rate, particularly with sensitive seeds and in medias containing compost.
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