Originally Posted by bananafarmer

Mixing my own Fert is mey newest idea.

After reading the forum, realizing that the best ratio of giving fert ist 4-1-6 NPK is I decided to create my own fert.

Another reason is, this way its cheaper than buying ready-fert, that has also not the perfect NPK-ratio for bananas.

The Fert I am feeding the bananas is 10-2,5-15, for creating this I use Ormin-k a organic-potas fert, with 30% K2O it has a ph of 5-7,

My second ingredient ist Urea (here its called Üre) has a N of 46 %.

My third ingredient is 18-46, it has 18%N and 46% 'Fosfor`.

So When I use two bags of Ormin-K I have 15 kg net K, when I use 5,4 kg 18-46 I have about 1,5 kg P,

Whats left is the N I need 10 kg, with the 18-46 I have already 972 gr, to complete the amount I have to add 9kg and 28gr,

I get this from the urea, I have to add about 19,6 kg to the mix to get my formula.


So I have 10 kg of Nitrat, 2,5kg of Phosfor and 15 kg of Kalium.

I give this mix to my plants in one watering every 21 days.

When I have 450 bananas every banana gets 33 gr K, 22g N and 5,5gr with every watering every 21days.

I am using this mix for about six weeks.

What do you thing about this amount and the mix? Any suggestions, any ideas ?