Potassium info

4 posts / 0 new
Last post
Beth11
Beth11's picture
Offline
Last seen: 3 years 2 weeks ago
Joined: 2009-01-21 20:51
Potassium info

Hi All,

  Apparently, plants will take up excess potassium with no ill effect.  Here's a quote from the soil class I'm taking:

"The amount of potassium needed by the plant also varies with the stage of growth. For example, lower levels of this nutrient are needed during early growth stages, and higher levels of potassium during fruiting and maturation. If potassium levels are sufficient, stems are stronger, there is less succulent vegetative growth, and fruit quality is improved. However, if there is an abundance of soluble potassium available, plants will take up more than they actually need. This is called luxury consumption and represents a waste of the nutrient because it is beyond the amount needed for optimum growth. "

I need to do some more research.

Beth

0
No votes yet
Orlando Jude (not verified)
Thanks Beth.  This gives even

Thanks Beth.  This gives even more credence to Peat's admonition to change the water regularly.  (therer's always a reason he says what he does ---- lol) 

 

Beth11
Beth11's picture
Offline
Last seen: 3 years 2 weeks ago
Joined: 2009-01-21 20:51
Further info - we still need

Further info - we still need to be careful about our nutes because they are salt based - From the instructor-

"Generally excess potassium will not be toxic to plants.  You are more likely to have a problem with high salts in the soil from the potassium than a potassium toxicity in the plant.  Typically the macronutrients (N, P, K, Ca, Mg and S) do not build up to toxic levels in plants.  The micronutrients, however, can become toxic to plants."
 

Beth

 

 

 

 

Orlando Jude (not verified)
Thanks for that info

Thanks for that info Beth. Good to know.