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0% Ammonical Nitrogen
The pH51 is waterproof to IP65
**Safer than aluminum sulfate due to potential toxic levels of aluminum with continuous use of aluminum sulfate
For Use on: Roses
The World Heath Organization has classified stonewool as a safe-to-use bio-soluble product
Masterblend 4-18-38 Hydroponic Tomato and Vegetable Formula Size:25 Pound Bag 0% Ammonical NitrogenNOTE: Due to international conflicts in countries where minerals are mined and processed for export to the U. S., we have been forced to adjust our prices for fertilizer products. Masterblend Hydroponic Tomato and Vegetable 4 18 38 formula is an all purpose nutrient formula that provides plants in a hydroponic system with essential macro and micronutrients that plants need to grow, bloom and set fruit. The tomato formula is a good, general purpose
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