Jack middleton
Member
- Joined
- 6 Jan 2009
- Messages
- 171
Hi all
I have heard this mentioned on a forum a few times and i wondered whether it is true as i don't think it is!
This person claims that excess potassium will restrict iron uptake, surely this defeats the whole point in EI?!
This person has an amazon sword with pin holes, potassium deficiency. so i recommended that they buy some potassium phosphate and dose a little every 2 days. And this person claims that the excess potassium would stop iron uptake.
What are your thoughts?
He also claimed that plants can only take certain nutrients through their leaves, such as silicates and chlorides etc, and that iron can only be taken through the roots, Im a bit dubious as to whether this is true as I have read numerous times that plants can easily take up nutrients through leaves and roots, regardless of the nutrient.
I think this may be one for clive.
Cheers, Jack
I have heard this mentioned on a forum a few times and i wondered whether it is true as i don't think it is!
This person claims that excess potassium will restrict iron uptake, surely this defeats the whole point in EI?!
This person has an amazon sword with pin holes, potassium deficiency. so i recommended that they buy some potassium phosphate and dose a little every 2 days. And this person claims that the excess potassium would stop iron uptake.
What are your thoughts?
He also claimed that plants can only take certain nutrients through their leaves, such as silicates and chlorides etc, and that iron can only be taken through the roots, Im a bit dubious as to whether this is true as I have read numerous times that plants can easily take up nutrients through leaves and roots, regardless of the nutrient.
I think this may be one for clive.
Cheers, Jack