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Hydroponics Ltd.
Copyright © 2006 |
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F.A.Q. TOPICS
General |
Hydroponics |
Lighting |
Growing Medium | Propagation |
Plants |
Pest Control |
Climate Control |
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Topic: Plants F.A.Q.
Quick Links:
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What is N-P-K? |
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Why are my plants dying? |
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What is
N-P-K? |
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N
= Nitrogen
7-9-5
Nitrogen is the first major
element responsible for the
vegetative growth of plants
above ground. With a good supply,
plants grow sturdily and mature
rapidly, with rich, dark green
foliage.
P
= Phosphorus 7-9-5
The second major element in
plant nutrition, phosphorus is
essential for healthy growth,
strong roots, fruit and flower
development, and greater
resistance to disease.
K
= Potassium (Potash) 7-9-5
The third major plant nutrient,
potassium oxide is essential for
the development of strong plants.
It helps plants to resist
diseases, protects them from the
cold and protects during dry
weather by preventing excessive
water loss.
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Why are my plants dying? |
1. Improper mixing of
nutrients or
nutrient deficiencies (read
directions)
2.
Bugs and pests (use
environmentally safe controls)
3. Letting plants dry out (water
manually if necessary)
4. Improper or not enough light
(use 500 to 2000 foot candles)
5. Wrong temperature (keep
between 65F and 95F)
6. Improper humidity (mist or
spray, except cactus)
7.
Improper pH (keep between 5
and 7 for most plants)
8. Toxic elements in water,
system, or growing medium (don't
use galvanized metal, copper or
brass)
9. Bacterial or fungal infection
(keep clean and sterile)
10. Waterlogged roots (no
standing water in grow-beds)
11. Toxic salt buildup (flush
with water every 2 - 3 weeks)
12. Pets urinating, etc. (keep
pets out of growing area)
13. Spilling concentrated
nutrients or pH adjusters
14. Windblown herbicides from
neighbors (wash off)
15. Improper aeration (provide
better drainage, aerate)
16. Experimenting (don't deviate
too far from instructions)
17. Location changes (light,
temp, pH, etc. can stress
plants)
18. Freezing or wind damage (prevent
and protect plants)
There are any number of other
reasons for plants dying or not
doing well. Sometimes you have
to turn into a detective. Don't
be afraid to
ask questions!
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