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to prepare nutrient solution
January 23, 2011
7:06 pm
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newgardener
coimbatore
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Hi all i have bought a readymade npk water soluble fertilizer in the ratio 19:19:19.the company name is nagarjuna peek with essential micro nutrients.the shopkeeper told to use 7.5grams/litre of water.but i have  a doubt it is for soil.can anyone tell me how much i should use per litre.if i am to use it for growing tomato in cocopeat.

thanks in advance

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February 1, 2011
11:00 pm
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geekgardener
Bangalore, India
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Hello New gardener,

Using just 2-3grams per litre is sufficient and gives very good results. During fruiting you can boost it up to 5g/lit.
Hope this helps

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February 8, 2011
12:21 pm
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Srikanth
Serilingampally, Hyderabad
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Hi GG,

 

I always had this doubt. If you were going to use soluble NPK and micro nutrients what about the other macro nutrients such as Calcium and Magnesium?

 

Thanks,

Srikanth

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Thanks,

Srikanth

February 8, 2011
7:37 pm
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geekgardener
Bangalore, India
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Srikanth,

Good point. Calcium has to be supplemented via calcium nitrate. Since the mix I suggest is cocopeat+vermicompost(50:50), there is some amount nutrients present in that. That takes care of magnesium and calcium.Again depends on the source of the compost.

An external source of magnesium and calcium is needed if the medium is straight cocopeat.

Some NPK fertilizers contain Mg in the form of MgO though.

GG

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