The answer to 'seeding yellowing' is that there are several common causes, including poor soil conditions, drought stress, disease, or improper mowing. Symptoms include patchy or uneven grass growth, thinning, and a yellow or brown appearance. Solutions may involve improving soil quality, adjusting watering and mowing practices, or treating any underlying diseases.
If the yellowing is widespread or persistent, it's best to consult a professional landscaper or turf specialist to diagnose and treat the issue properly. They can assess the specific conditions of your lawn and recommend the most effective remedies.