N Nutrient Question :)

[Tomthehippie]

Hey all! my latest bb grows just under 2 weeks into flower! however blueberry being such a sensitive strain to feeding theyâ??ve got a slight over N prob - im talking no burns but dark green leaves and slightly curly tips.

So my question is this i want to drop out all N feeding and just go with P and K for a bit till things look better and to help bloom.

Iv got some Canna PK 13/14 is it wise to give them a small dose of this till the N retunes to normal levels instead of just giving them water as i donâ??t want to slacken off the PK in flower?

Cheers all! :)

[postmandave]

tom it may not be a nitrogen prob .I had the same problem a while back and after some research and adjustments i found out it was the fluoride in the water .it causes probs with the phosporus.heres some info that may point you in the right directoin.be safe the postman.



Macro-nutrients Nitrogen (N) is primary to plant growth. Plants convert nitrogen to make proteins essential to new cell growth. Nitrogen is mainly responsible for leaf and stem growth as well as overall size and vigor. Nitrogen moves easily to active young buds, shoots and leaves and slower to older leaves. Deficiency signs show first in older leaves. They turn a pale yellow and may die. New growth becomes weak and spindly. An abundance of nitrogen will cause soft, weak growth and even delay flower and fruit production if it is allowed to accumulate.
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Phosphorus (P) is necessary for photosynthesis and works as a catalyst for energy transfer within the plant. Phosphorus helps build strong roots and is vital for flower and seed production. Highest levels of phosphorus are used during germination, seedling growth and flowering. Deficiencies will show in older leaves first. Leaves turn deep green on a uniformly smaller, stunted plant. Leaves show brown or purple spots.
NOTE: Phosphorus flocculates when concentrated and combined with calcium.
-------------------------------------------------------------------------------- Potassium (K) activates the manufacture and movement of sugars and starches, as well as growth by cell division. Potassium increases chlorophyll in foliage and helps regulate stomata openings so plants make better use of light and air. Potassium encourages strong root growth, water uptake and triggers enzymes that fight disease. Potassium is necessary during all stages of growth. It is especially important in the development of fruit. Deficiency signs of potassium are: plants are the tallest and appear healthy. Older leaves mottle and yellow between veins, followed by whole leaves that turn dark yellow and die. Flower and fruit drop are common problems associated with potassium deficiency. Potassium is usually locked out by high salinity

[Tomthehippie]

Cheers man! hum! theres a few things this 1 could be but as of yet! im still not sure what to do! grr! :)