Delta

Fertilizer Name, Nitrate Nitrogen (%), Ammoniacal Nitrogen (%), Amide Nitrogen (%), Total Nitrogen

Sodium Nitrate (Nitrate of Soda), 15 - 16, -, -, 15 - 16
Ammonium Sulphate, -, 20 - 21, -, 20 - 21
Ammonium Nitrate, 17 - 18, 17 - 18, -, 17 - 18
Ammonium Sulphate Nitrate, 6.5, 19.5, -, 26
Ammonium Chloride, -, 25 - 26, -, 25 - 26
Anhydrous Ammonia, -, 99.0, -, 99.0
Urea (Biuret = 1.5%), -, -, 46.0, 46.0
Urea (Coated), -, -, 45.0, 45.0
Calcium Ammonium Nitrate (25%N), 12.5, 12.5, -, 25.0
Calcium Ammonium Nitrate (26%N), 13.0, 13.0, -, 26.0
Calcium Ammonium Nitrate (28%N), 14.0, 14.0, -, 28.0


As you can see, a great source of Nitrate Nitrogen is ‘Nitrate of Soda’ followed closely by Ammonium Nitrate. These are the BEST ionically available sources of Nitrogen available.

Go for the raw salt! (I'll get to why later)
Sodium Nitrate (Nitrate of Soda)

Or, what I like to do, some times, is add Ammonium Nitrate at a rate of 50/50 with Nitrate Nitrogen to skunk varieties. This tends to enhance the skunk flavor. Then flush just the Nitrogen during the final weeks of flowering. This has a leaching effect and will turn your buds a beautiful NEON GREEN … the bottom fan leaves will yellow and drop off.

Using Ureas in practice is fraught with many cons! They have a nasty way of ionically bonding to the soil and becoming incredibly hard to leach. This will cause Nitrogen Toxicity and can kill a plant very quickly. My advice is to make every effort to steer away from these compounds.

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