My wife and I live in Alto, MI USA. We have about 3 acres, with a creek running through our backyard. The lawn on the other side of the creek (opposite of house) looks great all the time. Very close to the water table, I assume. It's a flood plane, but pretty much remains dry during the summer.
On the house side of the creek (higher side), we get plenty of shade, even after taking down several mature oaks a couple months ago. So I think we have a shade mix right now. There are some parts that look alright and other parts that look terrible (weeds, bare spots, etc.). We have no underground sprinkling. Our soil is very sandy.
What fertilizer should I use if I wanted to eliminate some of these weeds? And what is a cost effective way at re-seeding? What kind of seed should I use?
Howdy J, welcome to permies.
I am not sure you will get too much advise on fertilizers or weed killers here. If you have time you might take a look at some of the other threads in the lawn section .
Two things jump out to me. The grass across the creek looks good, what do you do with it? Mow, graze, nothing?
You have rermoved trees, which means you have changed the environment where the trees used to be. So the plants are reacting to that change. Different plants grow in different conditions. Some may have even been in a relationship with the trees you removed.
You may have to overseed with different grasses and try to out compete the weeds.