For those who do not want to use chemical fertilizers in their orchards, a British company has created a natural fertilizer called Ocean Supermix. It is crab peel and potassium. It is a great protector for growing herbs and cabbage.
The skin of the crabs contains chitin, a substance that helps the anti-herbaceous and anti-parasitic organisms. This new natural fertilizer does not dissolve and helps plants during long periods of growth.