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Thread: SERIOUS DAMAGE? DAY 48 FLOWERING dying leaves yellow/brown

  1. #1

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    Default SERIOUS DAMAGE? DAY 48 FLOWERING dying leaves yellow/brown

    AMNESIA HAZE
    7th week of flowering ( DAY 48 )
    fluence leds 70cm from the top of the plant at 98% power
    temp is 29•C/84.2•F by day - 23•C/73.4•F by night
    tap Water is EC 0.2 (tds500 is 100-ECx700 is 140)with temp 18.5 •C /65.3•F
    watering is:
    EC 0.6 (ppm500TDS is 300)(ppmECx700 is 420)
    after nuts and BLOOM A/B water is EC 1.2 =(ppmTDS500 is 600)
    (ppmECx700 is 840)
    PH 6.5 (comes from veg 5.7/5.8 FLOWER 6/6.1/6.2...etc)
    50% soil 50% coco
    humity is below 60%
    CO2 is 1500ppm today
    Extraction runs 15mins per 1 hour lowerong CO2 to 470ppm
    2 fans (ventilation not a issue)

    LAST EC MEASSURE/FLOOD from irrigation water full with A/B+ nuts EC 1.2 in 2 taller and 2 shorter plants result 1.3/1.4/1.6/1.6
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  3. #2

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    Default Potassium deficiency

    FIRST TIME WITH LEDS wondering if POTASSIUM DEFICIENCY is the issue

    Here CLOSER PICTURES
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  5. #3

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    Default EXCESS OF CALCIUM at 1.6 after nuts+A/B bloom blocking potassium intake?

    LED lights got a lack of cal/mag but just rising the EC from 0.2 from the tap to 0.6 to irrigation is so excessive? CO2 running high and on soil/coco 50%

    no mites (is being checked the since day 1) not mold (humity below 60%)

    PHOTOS OF THE MOST DAMAGE
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

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  6. The Following 2 Users Say Thank You to GANG GREEN For This Useful Post:

    GEORGE (20-03-21), scoot (22-03-21)

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