Can Organics cause Leaf Burn?

I've been using down to earth fertilizers and about two weeks ago I noticed leaf burns and yellowing on leaves throughout the plant. A month ago I added half a cup of alfalfa meal, half a cup of neem seed, and half a cup of langbeneite. In May I added two cups mykos bacteria and 2 tablespoons of great white to help process nutrients for the plants. Any advice about how to resolve the problem would be greatly appreciated. The plants were growing like gangbusters, but have slowed to 2 inches or less per week since the yellowing and leaf burn began 2 weeks ago. The plants were started indoors in March and were full rootbound in 5 gallon pots when placed outside in May. They have been in 32 gallon trash cans since May. There are holes on the bottom and sides.

Yes you can burn your plants with what you used. You're also really heavy on the potassium which can cause nutrient antagonism. Whatever you did the plants didn't like it. It's always best to provide a more balanced feeding than excessively heavy with one nutrient or another. What kind of soil are you using?

langbeinite 0-0-22
neem seed 6-1-2
alfalfa 2.5-0.5-2.5

I made my own mixture. Its 30% perlite, 10% compost, 10% peat moss/ humus (ancient forest), 2.5% chicken manure, 2.5% earthworm castings, and 45% kellogg's patio plus potting soil.

Mycology and Herb said:

I made my own mixture. Its 30% perlite, 10% compost, 10% peat moss/ humus (ancient forest), 2.5% chicken manure, 2.5% earthworm castings, and 45% kellogg's patio plus potting soil.

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I read that as Kellogg’s Cornflakes lol

As xtsho said it’s probably too much K added at once.

Solutions?