Why are my Hydroponic Corn Leaves Turning Yellow?

[waterfarmer]

hi everyone, can somebody tell me why my hydroponics corn leaves are turning yellow

[hydroguy]

Hi and welcome to HG waterfarmer!

A bit information about your system sure would be helpful. There's a lot of things that can cause plants to suffer but if I was a gonna take a guess...based on corn grown in the soil.... it is a heavy feeder on nitrogen so I would venture a guess your nutrients are lacking in that area.

Best of luck to ya,

[hydrolifeCA]

I would try adding some Urea (which is high in Nitrogen) and it helps to restore the nitrogen. It will also lower the pH. It should be safe. I have used it without problems.

Things like miracle grow contain urea but I would not put that in a hydroponic system. You can buy dry urea pellets in Walmart, a hardware store or plant store.

[waterfarmer]

thank you for the tips
I have had a lot of answers and they are all different, so know I'll ask you my new friends,. I'm looking for a hydro fertilizr mix for the following veggies; pole beans, tomatoes, cucumber,cantalope,watermellon,spinach,bell peppers and lettuce.
I have tried so many solutions, I have been close , but no cup of tea yet.
the only thing that I have that is doing PERFECT is my strawberrys.
thanks a bunch.

[hydrolifeCA]

I would say either hydroton pellets which are working good for me OR the other thing I use which works with MANY things is a mix of coir and pumice. Maybe cocunut coir would work okay.

What type of system do you have and what HAVE you tried?

[bren.t]

Pics and more info definitely help. If the yellowing starts at the bottom of the plant and works its way up towards top growth it could very well be a nitrogen deficiency. In that case, hydrolifeCA is right and adding urea could solve your problem. It may just be time to change out your hydro solution with a fresh solution (I never liked just topping off the system since you don't know how much of what nutrients are left in the water).