yellowing/whiting on leaves

[cloud]

hey i'm currently growing a akr day 49 (from beginning of germ) /day 44-46 from braking soil. its been in flowering now for about a week nd half. i don't think its to do with ph as have had no problems with it for entire grow. i think its ether nute burn or something. im using biobloom and grow but last feed was 3ml of just bloom in 2l of water. my soil is just bnq multipurpose. i think its nute burn as have had a slight amount of browning on the tips of the hairs after the last feed. i just give a huge flush but just thought i would post to ask for some advise. im unable to test ph as the meter i bought came and didnt work so got to wait for a new one.

heres some pics of the yellowing

 

[A4]

That is not nute burn bro. I hate to say it because it sounds like you are convinced there isn't a problem but it does look like your ph is out of whack. Your hairs coloring up is normal during this stage of flowering, that is a good sign. Those white/yellow spots are a sign of a deficiency, probably from lock out. Were you checking the ph and runoff with any other method prior to the meter not working? If so, what were you at then?

 

[cloud]

That is not nute burn bro. I hate to say it because it sounds like you are convinced there isn't a problem but it does look like your ph is out of whack. Your hairs coloring up is normal during this stage of flowering, that is a good sign. Those white/yellow spots are a sign of a deficiency, probably from lock out. Were you checking the ph and runoff with any other method prior to the meter not working? If so, what were you at then?

nope never ph'd once the meter i bought wasnt working when i recieved it so had to send it back off. and used the same water constantly the entire time plus i got a cheese plant (photoperiod) thats in veg on the same nutes (but stronger doses) in and exact same water and theres been no problems at all. this only started about 1-2 days ago really

 

[kendo-san]

im no expert mate but iv just had a BIG nute burn prob and it didnt look anything like that. theres usually leaf curling of some description when its burn. cant help you any more than that though am afraid mate. theyre are bigger and better on here who will(and are) though.
Leaving a karma clou

 

[A4]

nope never ph'd once the meter i bought wasnt working when i recieved it so had to send it back off. and used the same water constantly the entire time plus i got a cheese plant (photoperiod) thats in veg on the same nutes (but stronger doses) in and exact same water and theres been no problems at all. this only started about 1-2 days ago really

Well photos, generally speaking, are much less problematic with ph issues than Autos. So just because your photo is doing fine, that doesn't mean your Auto should be as well. I normally run photos but have ran several Autos as well and in all cases my problems showed up around the same time as yours is. I would try to get an idea of what your ph is, even if you have to go buy some strips at the local store. I would love to tell you it is nute burn but that isn't the case with this one.

Best of luck.

 

[cloud]

im no expert mate but iv just had a BIG nute burn prob and it didnt look anything like that. theres usually leaf curling of some description when its burn. cant help you any more than that though am afraid mate. theyre are bigger and better on here who will(and are) though.
Leaving a karma clou

cheers mate hope i can get it sorted.

 

[cloud]

Well photos, generally speaking, are much less problematic with ph issues than Autos. So just because your photo is doing fine, that doesn't mean your Auto should be as well. I normally run photos but have ran several Autos as well and in all cases my problems showed up around the same time as yours is. I would try to get an idea of what your ph is, even if you have to go buy some strips at the local store. I would love to tell you it is nute burn but that isn't the case with this one.

Best of luck.

thanks only problem is wont be able to pick anything up to test it till at least monday

Edit: i just found a cheap ph meter online that will be delivered to me on tuesday so should know by then if its a ph problem

 

[KUDO]

like all above say bro you need to sort the ph out fist,if they any granden shop near you go and buy some ph test strips mybe it get you over till Monday Kudo

 

[cloud]

like all above say bro you need to sort the ph out fist,if they any garden shop near you go and buy some ph test strips mybe it get you over till Monday Kudo

theres none around my area i know my grand dad has ph tablets up his im going to see him tomorrow and sunday so il pick one or two up from him then get a rough guess of the water + runoff till this cheap ph pen comes so i can get it more precise. also what cheap things can i get to ph up/down water once i find out what the actual ph is?

 

[Hazy]

Hey cloud, 1.5ml per litre of bloom is not enough feed at this age... your def is more than likely caused by under feeding, at this stage you should be using around 1.5m grow 3-4ml bloom per litre. Check out the BioBizz thread, there are some good feeding guides. https://www.autoflower.org/f89/bio-bizz-knowledge-base-21587.html