The answer to 'which is better lawn fertilization or' is that both lawn fertilization and aeration can provide benefits for your lawn, but the best approach depends on your specific lawn's needs and goals. Lawn fertilization helps provide essential nutrients to promote healthy grass growth, while aeration helps improve soil compaction and allow better water and air flow to the roots.
In general, lawn fertilization is a more routine maintenance task that should be done 1-2 times per year, while aeration is typically needed every 1-3 years depending on soil conditions and lawn usage. Fertilization is usually less expensive and can be done DIY, while aeration often requires professional equipment and services. Ultimately, a combination of both fertilization and periodic aeration is often the best approach for a lush, healthy lawn.