Whats wrong (nute lockout)? Should I feed one more time or do flush straight away?

Hey guys. Ran into some issues with my autoflowers when going in flowering. This is my first grow


Day 41 from sprouting.Tap water ppm 200-240. BIOBIZZ nutes
PPM going in was never above remoended range for vegetation, early flowering. Dont know about ppm coming out, since I usually water until only a few drops start coming from bottom (not the sides, bevcause for airpots water sometimes comes from sides, i dont count that)


3x3x6 tent.
390w light ( 1 kingbrite 240w with cree reds and 1 mars ts1000)
Biobizz nutes
50-70k lux during week 5-6
Temp and humidity more or less optimal (26-28 celsius and 45-55% humidity)


Should I give them one last Hail Mary watering? (Ill add 1-1.3ml/l fish mix, 1ml/l bloom, some algamic and activera for nutrient absorption)
Or go flush straight away?

I ve been feed/water/feed/water schedule. Water feed is when I add some algamic or, sometimes calmag. So its usually never only water.

Nutes from light mix chart.

may 29th - calmag (0.5ml/l) + algamic (1ml/l)
1st June - 1/3 rd of recomennded doses - grow 1ml/l, bloom 0.8-1ml/l, algamic 2ml/l
4th June - calmag 0.5ml/l, algamic 2ml/l
7th June - - 1 m/l grow, 1 ml/l bloom, 2 ml/l algamic, 0.5 ml/l calmag

2 weeks ago I was watering about 1.25-1.5 liters per big bot and 0.8-1 liter for small pot. But slowly increasing water amount.
Last watering - 2.25 litres for big pots and 1.5 for small pot.

Leaves started yellowing on approximately June 1st. I have taken off the leaves that were barely hanging on.
Last days bottom leaves have started drooping. (for 2 plants of 3 ) One of sativas strecthed a lot, dunno why, environment was the same for both.


2 plants are sativas - think different (in 20l pots) They have yellowing bottom/middle leaves and lower leaves droop.
1 is indica (the small 11 litre pot, it started showing deficienciesfirst). It has yellowing leaves and some top leaves curling up
ALL plants have had yellow tips from week 4 - I suppose from nute burn? But I only added 1/4 of biobizz recomennded dose..
I also see some mag deficiency.

P.S. My friend said that both sativas are too strecthed and they will give only popcorn buds. Does it look like it?

Ok
First your friend knows little about sativas
Second you have about 2 months to go so there is no “one last feed”
Tell us how you water and feed in those pots?
While I like them it can be a challenge to water thoroughly which can create the appearance of deficiencies
Just a guess
I may have missed it but what is your medium?
Maybe others have thoughts as well

Herb & Suds said:

Ok
First your friend knows little about sativas
Second you have about 2 months to go so there is no “one last feed”
Tell us how you water and feed in those pots?
While I like them it can be a challenge to water thoroughly which can create the appearance of deficiencies
Just a guess
I may have missed it but what is your medium?
Maybe others have thoughts as well

Click to expand...

Thanks for responding.
Medium - biobizz light mix.
I water in 3 rounds. First round I soak it with sprayer. After 10 mins I pour with a gardening can.

I think I may have underwatered from the start. On day 38 I watered 2.25 litres of water for big pots (20l) and 1.5 litres for little pot (11l) - and I got very small runoff. I suspect bottom is dry and hydrophobic.(have no tools to check) Should my plants at these pot sizes drink more?

By last feed I meant last feed to try tof ix the N deficieny before flush. I gave it Biobizz grow (NPK ratio of 4-3-6), but the deficiency has progressed. Thats why I am thinking about flush...

This another thread which I made for a different purpose but it got sidetracked to my nute problems lol. More info in there.

Just water to 20% runoff. Make sure you water in slowly.

Get a surfactant like aloe, or yucca extract, and use it every watering. If your soil is hydrophobic, it'll help condition it.