Demineralised water in soil

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Paul Tergat

Member
When growing in dirt, what makes the chemicals dissolved in tap water so vital for a plant that she can't get straight from the soil?

A friend of mine has been growing some lowryders #2, now they're 4 weeks old and they've been watered with just 2/3 demineralised water and 1/3 tap water. They are perfectly green, healthy, no curlings or yellow spots. (height around 12 inches now).

Soil is bio-bizz light mix, small pots (1 litre each).

Since in water (unless we add fertilizers on purpose), there are no NPK, is it theoretically a feasable and sane idea to water them this way for the whole cycle?

(unless they show clear signs of nuts lack)
 
keico

keico

Well-Known Member
Paul Tergat said:
When growing in dirt, what makes the chemicals dissolved in tap water so vital for a plant that she can't get straight from the soil?

A friend of mine has been growing some lowryders #2, now they're 4 weeks old and they've been watered with just 2/3 demineralised water and 1/3 tap water. They are perfectly green, healthy, no curlings or yellow spots. (height around 12 inches now).

Soil is bio-bizz light mix, small pots (1 litre each).

Since in water (unless we add fertilizers on purpose), there are no NPK, is it theoretically a feasable and sane idea to water them this way for the whole cycle?

(unless they show clear signs of nuts lack)
Click to expand...
Very good and thorough question

bio-bizz light mix does have some nutrients in it. It is designed to work with liquid fertilizers.

So your plants are receiving nutrients.

If your soil did not have any nutrients, or the water, your plant would not last long at all
 
G

growone

Well-Known Member
tap water may contain significant amounts of calcium and/or magnesium
this is usually for harder waters, but these can aid plant growth provided it's not too hard
 
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