Super phosphate 0-20-5. Any one using it?

mr.india

mr.india

Active Member
Hey all,
my plants are growing in smart big pots and they into flowering.
I bought a big bag of super phosphate npk 0-20-5.. I have'nt used this product before..
Anyone else using superphosphate for phosphate ?
How much superphosphate should be given to each plant and in how much intervals?
Pls help i can't find clear information anywhere.. Thnx!!
 
jrinlv

jrinlv

Well-Known Member
9 views in nothing my friend,

No, I have never used it, use half dose of the directions if you feel lucky...Good luck JR
 
bird mcbride

bird mcbride

Well-Known Member
If I was going to use that fertilizer, 0-20-5 for budding I'd have to chuck in something like a 10-0-15 or something close, 50/50. Anything with the correct numbers can be made to work.
 
elduece

elduece

Active Member
rock phospate is used as an soil amendment not a fertilizer or "feed". It's pretty much useless for you at this point. I'd mix it aolng with other amendments into the compost/soil and let it cook for a month and its ready to be used. Microbes in the osil eats it not the plant. Super phospate is a more refined form of rock phosphate.
 
mr.india

mr.india

Active Member
elduece said:
rock phospate is used as an soil amendment not a fertilizer or "feed". It's pretty much useless for you at this point. I'd mix it aolng with other amendments into the compost/soil and let it cook for a month and its ready to be used. Microbes in the osil eats it not the plant. Super phospate is a more refined form of rock phosphate.
Click to expand...
thnx alot for advising.. Can i put superphosphate in fish emulsion(currently fermentating) will it work then?
 
mr.india

mr.india

Active Member
bird mcbride said:
If I was going to use that fertilizer, 0-20-5 for budding I'd have to chuck in something like a 10-0-15 or something close, 50/50. Anything with the correct numbers can be made to work.
Click to expand...
yeah, i will be using fish emulsion for N and banana liquid fert for K
 
Countryfarmer

Countryfarmer

Active Member
Have you been using fertilizer all grow? If so, what ratio? The reason I ask is that nitrogen will move out of the soil relatively quickly in comparison to both phosphorus and potassium. That means if you have been using ... say ... a 20-20-20 ratio throughout vegetative growth, then your soil should already be loaded with P and K.

Keep in mind, high potassium levels have been scientifically shown to have a direct negative correlation to THC production. While K is still needed throughout your grow, once you get within the last 4 weeks of growth I would cut the K down to zero as your soil should easily have enough to carry it through one month.

As to using a super phosphate in the latter stages of the plant's life, I see no issue with it. Personally, I used a triple phosphate (0-45-0) as my last fertilization prior to flushing, but based on my fert schedule this grow I know my plants have enough N and K (and also I wanted the N to begin to become scarce right before harvest).
 
mr.india

mr.india

Active Member
Countryfarmer said:
Have you been using fertilizer all grow? If so, what ratio? The reason I ask is that nitrogen will move out of the soil relatively quickly in comparison to both phosphorus and potassium. That means if you have been using ... say ... a 20-20-20 ratio throughout vegetative growth, then your soil should already be loaded with P and K.

Keep in mind, high potassium levels have been scientifically shown to have a direct negative correlation to THC production. While K is still needed throughout your grow, once you get within the last 4 weeks of growth I would cut the K down to zero as your soil should easily have enough to carry it through one month.

As to using a super phosphate in the latter stages of the plant's life, I see no issue with it. Personally, I used a triple phosphate (0-45-0) as my last fertilization prior to flushing, but based on my fert schedule this grow I know my plants have enough N and K (and also I wanted the N to begin to become scarce right before harvest).
Click to expand...
All you said above is 100% true.. Thnx alot for the advice specialy about stopping the K use in the last month and the THC talk +REP

i have'nt used any serious P and K till the veg stage.. I was using more 'N'
Ratio 15-3-3 (appx)

Please share your results of applying superphosphate with us and Can you tell me how to apply superphosphate to already established plants? and the amount of superphosphate? Frequency of using ?
 
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