elektrocute

Hey all, simple question. Is phospheric acid the P in NPK?

Also, would it be a good idea to mix a little phospheric acid in with my standard miraclegro fert solution to help the plant in its flowering stage? Will it burn the plant? Any suggestions on how much phospheric acid to use?

Delta9

Better late than never I guess...
No, phosphoric acid isn't the P... way way too acid.
You can use it to adjust pH tho.. a little P boost as a bonus for adjusting it.
D9

lilbuddie

<BLOCKQUOTE><font size="1" face="Verdana, helvetica, Arial">quote:</font><HR>would it be a good idea to mix a little phospheric acid in with my standard miraclegro fert solution; Will it burn the plant?<HR></BLOCKQUOTE>

1) No, it is a bad idea to mix this in with your MG. Only!!!! If you have a problem with a high soil pH (soil being too alkaline) then you use this stuff not as a normal part of your feeding.

2) It will cause a nutrient lockup of your plant so you will see signs of multiple defs at which point you will probably try and correct with more ferts thus causing to yellow even more then death is right behind

LB