Nutes too early?

Hello! I started my first grow a month ago and my plants were doing great up until I thought they were getting a little big and needed nutes. I am growing Royal Dwarf Autoflowers in a closet soil grow. I fed them 4ml per liter of House and Garden Bio-1 Component. Woke up the next morning to find a couple of the leaves on two of the plants started to get yellow and eventually that week the yellowing slowly crept up the fan leaves. I guess I fed them too much too early in veg. I was having some trouble before with watering, first watering too much, then watering too little. I stopped feeding them nutes for almost 1 week now and now the same yellow leaves are slowly fading to yellow, not just turning yellow from the tips in. I'm thinking now I need to feed nutes again? Could this be a combination for nute burn and then nute deficiency?


your help is greatly appreciated!

I had similar looking plants, and found out my ph was way too high. I fixed that, flushed, and started using cal/mag plus @ 1/3 strength and no more yellowing. I am a newbie myself though, so I don't know what I'm talking about.

Any recommendations on a Ph tester?

KenTK808 said:

Any recommendations on a Ph tester?

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litmus paper! forget anything digital when growing with soil.

I have spent close to $500 on three digitals. All are ATC (auto temperature compensating) and are good for shit in soil or organic anything for that matter! (except when used for synthetic hydro)

I see a few things wrong.

1. Your leaves are somewhat droopy ad that means you are watering too often. Let the soil dry out mostly, and before you water again lift the pot to see how heavy it is.

2 The plant is generally healthy looking and the problem is starting at the base or older/oldest growth. Nitrogen is a mobile element and can move easily though the plant. Because of this, the plan can/will relocate nutrients stored within the leaves and utilize it when there's a shortage or when pH renders nutrition unavailable. High salts an be another cause, and essentially de-hydrates the plant of nutrients, sucking them out and locking out. In that case you flush the salt out.
Your problem is lack of Nitrogen and that's causing a deficiency in magnesium which is also another mobile element and displays its self in older growth.

Foliar spray with Magnesium Nitrate or cal/mag in some form. Foliar is best and works the fastest

$5 hygrometers that you leave in the plantpot is a great way to determine watering times when you grow in soil. I have found these at Canadian Tire and Lowes.

Thank you guys for the help! It was a cal/mag problem! This site is a life saver! +Rep