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Help brown leaves

Kenpowarrior
Kenpowarriorstarted grow question 4 years ago
What happend to them? Left them 2 days without water and nutriens. To dry out a little. Top soil was dry now. Give them water and food again. Was it water and nutriens shortness?
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Leaves. Color - Dark-brown
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Organoman
Organomananswered grow question 4 years ago
When giving nutrients, you should do so onto moist substrate and not dry substrate. Ideally you should water first, wait an hour or two, then give nutrients. This allows the plant, especially if it has been in over dry conditions, to rehydrate itself before having to deal with fertilizers. Giving dry plants fertilizers when they are already under moisture stress (over dry substrate) will cause burning, as you have found out. I don't know the reasons for withholding water for 2 days, cannabis does need good moisture levels when flowering, however giving fertilizers to dry plants has caused the burning. Always apply fertilizers to pre-moistened substrate to prevent this from happening again. Hope this helps,...... Organoman.
Kenpowarrior
Kenpowarrioranswered grow question 4 years ago
@Mr_Cannab1sir my nutriens are for 2,5L = 5plants = 500ml/plant
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Mr_Cannab1sir
Mr_Cannab1siranswered grow question 4 years ago
Did you feed 20ml of bloom per ltr? I'd have a wild stab in the dark at overfeeding if you did, waaaaay overfeeding ; ) . Depends how bad it is all over but usually it's 2-4 ml per ltr. If you put 20ml per ltr in I'd flush it with 3 x volume of the pot you're using, let that dry out then feed again in 5-7 days when it's fully dry
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