Re: Fertilizer ingredient disclosure
Posted: Sat Oct 28, 2023 8:28 am
I recommended the FLEX-G, Hijau, and potassium sulfate dilutions per 50 liters of water precisely because the NPK balance and nutrient dosages are correct for your cacti and succulents. Theoretically this is the only feeding regimen you should be using if it weren't for the fact that you don't know what's in the FLEX-G and Hijau. The objection to chloride raised by Mike is a significant concern -- unless you know for sure that there's no chloride in both ferts, IMO GrowMore is a safer bet. The guaranteed analysis:
I'm sure this will be the same for the GrowMore you get in Indonesia. And you see what it's derived from -- first of all, no chloride. Now we'll break down a few things:
By the way, 50 liters is roughly equivalent to a barrel (as in a barrel of oil). I think you said 100-150 liters per watering session -- that's a lot of water! Just out of curiosity, how many cacti and succulents do you have in your collection?
I'm sure this will be the same for the GrowMore you get in Indonesia. And you see what it's derived from -- first of all, no chloride. Now we'll break down a few things:
- Ammonium phosphate is acidic, so it'll provide some acidification of tap water. Maybe not enough to fully neutralize bicarbonates and carbonates, but partial neutralization is helpful. (We can discuss the possibility of further acidification with citric acid later.)
- The potassium sulfate in GrowMore is good, but you'll need to supplement it with additional potassium sulfate.
- Remember these calculations -- %P2O5 x 0.436 = %P, and %K2O x 0.83 = %K. GrowMore 20-20-20 is in fact 20-8.72-16.6.
By the way, 50 liters is roughly equivalent to a barrel (as in a barrel of oil). I think you said 100-150 liters per watering session -- that's a lot of water! Just out of curiosity, how many cacti and succulents do you have in your collection?