Diamond calcium nitrate fertilizer is a 100% water soluble fertilizer that must be fed to the plants, especially fruiting plants. As the very name implies, this fertilizer is a good source of calcium and nitrogen. It is also beneficial in the treatment of certain diseases. It is ideal to be applied in any of the three methods, top dressing, foliar spray, and soil drench. The users must read the instructions to understand the correct dosage of the fertilizer. If your plants are calcium deficient, feed them this fertilizer.