The Tropical Fruit Forum

Here is one article:https://www.al.com/living/2015/06/the_unnatural_truth_about_fert.html
Could not find any scientific studies but did not look deeply

Try this: http://idtools.org/id/citrus/citrusid/index.php

More information is needed in order to diagnose the problem. Is it in a container or planted in ground? If in container, how much light does it get, what temperature, what soil mix, how often do you water, etc.?

I am planning on getting some citrus cuttings and propagating them. I need to decide whether I should root them or graft them. They will be grown in containers. So, should I root or graft?

How cold do citrus have to be to survive winter in the dark?

@Millet Would cutting off the top 25% inhibit fruit production?

I am not convinced that the grass is a significant competitor for nutrients. Are there any scientific papers about this?

Please provide more information on these containers, e.g., manufacturer, model no..

I tried urea from Alpha Chemicals once and it caused burning and defoliation. Their specification sheet says that biuret is less that 0.5%, which I believe is considered "low"biuret". Their spec sheet is here: https://alphachemicals.com/msds___specs
I do not know if I over applied it because I do not know what is meant by "over applied". I sprayed both sides of leaves until I saw it dripping from leaves. This was done indoors and trees were kept indoors under lights.

My parents were Russian and they have told me what it was like living under Stalin's brutal dictatorship. Some of my friends were Ukrainian. My heart goes out to the Ukrainian people fighting for freedom and democracy. We need to send them more weapons.

This is a pic of Femminello syracusa lemon. The second pic is same tree, new growth. Is this root rot? Nutrient deficiency?

Epoxy paint

After posting, I realized that both rootstock and mandarin scion are juveniles, which means that it will take as long as 7 to 10 years to produce fruit. I do not want to wait that long and so will dispose of the mandarin seedlings.