Yara Liva Greenhouse Grade Calcium Nitrate, Calcinit Available in these sizes: 1 Pound 5 Pounds 20 Pounds 50 Pounds Benefits Benefits of Calcium: Calcium … Greenhouse grade calcium nitrate for plants is … Urban-Hydroponic Calcium Nitrate Fertilizer 15.5-0-0 2 lb. For best results, use only "greenhouse grade" calcium nitrate fertilizer in your hydroponic growing system. Calcium nitrate contains both calcium and nitrogen, which are nutrients plants require to survive. Sold by 5 Gallon Bucket Hydroponics and ships from Amazon Fulfillment. Additionally, Calcium Nitrate fertilizer 15.5-0-0 is largely used in hydroponics growers who use it to dilute it into feeding tubes to nourish plants growing in water indoors. Can be used as a foliar spray. You will have less residue and sediment from mixing and less plugging of your feed lines and drippers. Yara Liva Greenhouse Grade Calcium Nitrate, Calcinit is a water soluble, greenhouse grade fertilizer with an N-P-K of 15.5-0-0. This item: Calcium Nitrate Hydroponics Soluble 15.5-0-0 (1lbs) $8.99 Only 6 left in stock - order soon. This is the fertilizer the professionals trust in increasing nitrogen levels which improves vegetation growth. Calcium Nitrate enhances uptake of potassium, magnesium, and calcium from the soil, as these are positively charged and fixed in the soil. This contents of product and will make approximately 375 gallons of fertilizer. 15.5-0-0. Calcium is vital for some plants to be able to produce seeds, and it also helps a plant to produce a better quality of fruit with a longer shelf life.