Leaves yellowing

This is burning from too much feeding/nitrogen....crispy brown dead leaves, clawing leaf tips She is also showing signs of magnesium and potassium deficiency.....the yellowing. In soil, I use a schedule of plain water/plain water/feed/plain water/plain water/feed...........have done so for over 30 years and it works well for me. Making sure you get decent run off each time you irrigate is essential too.

looks like it needs a bit more. Bump K, maybe a little N too. 212 NPK // 421 KCaMg Ratios. for soil nutes. If nutes are chelated go with 1-1-2 NPK ratios. As long as pH is slightly acidic, probabaly just fine on that. work out a forumula near these suggestions at a concentration that works well and you'll do well.. some trial and error required. if doing every other, i'd guess you may need 10-15% more than 1100ppm (as calculated from gauranteed analysis labels not an EC pen) EC is correlated to ppm... it converts it. The fact they have 3 or 4 different conversion scales should tell you just how accurate they are... they wil be consistent relative to context (precision), but not accurate.

If your going in at 1100ppm 2.2EC on 500 scale and coming out at 300ppm or 0.6EC its suggesting your plants needs more feed. Or feed more often. I agree ph is good to monitor, i don’t focus on it a lot in soil but i would pay attention to how much run off your getting. a EC of 2.2 is high to me, I aim for around 1.8, maybe the runoff is not enough and that why its runoff is only 0.6ec? Or the plants could be very hungry but i feel its nog that. Try to water in slowly vs all at once and calibrate your tools to confirm the numbers your reporting are accurate. You want about 10-20% of the pots volume in runoff. Eg 10L pot 1-2L in runoff. Good Luck!

Are you measuring your runoff? Check your ph, people said that when growing organic you dont need to ph your water, but sometimes ph can get really off.