phos def?

dr.greenthumb85

Well-Known Member
im in about the 5th week of flowering and my ladies are telling me that they are lacking P, im using fox farm cha ching 9-50-10 full strength per gallon, ph is correct sitting close to 6.5, and when i test my runoff the P is depleted, is there anyone that has some know how as to why this is happening, only thing i can think of is to add more P but i don't want to over do the nutes. Also is there any benifit to using a fert with no N in it in the last few weeks of flower? any info would be appreciated.
 
Back
Top