The Risks of Nitrogen- and Phosphorus-Rich Composts and How to Avoid Garden Problems
Compost is essential for building fertile, healthy soil, but not all composts are equal. Some are naturally high in nitrogen (N) or phosphorus (P), which can create problems if applied improperly. Nitrogen-rich compost often comes from fresh or semi-composted manures, poultry litter, blood meal, or protein-heavy kitchen scraps. Phosphorus-heavy compost may originate from bone meal,…