i cleared out a small area on my property with a metal rake and hoe in the month of May maybe about 1000-1200 sq ft, and i planted a sample kit from whitetail institute the kit had just about everything, i marked off each area with the coresponding seeds to see what would grow and what wouldn't, well i just went back up last weekend and nothing grew

my property is located in mid michigan, property is mostly trees (acorn trees)except for this opening, the ground is sand/dirt i used one of those ph testers you stick in the ground and it said the ph level was around 6.8-----> I cleared the grass, laid down some lime pellets with a hand spreader along with some 10-10-10 fertilizer and then the seeds.As i was doing this it was actuallyraining. when i went up last weekend the area that i cleared out and seeded was full of ferns and grass and hardly any clover. what happened?????? any advice on what to do?
ps before i came back i cut every thing down real short and sprayed round up on the area what should i do next? thanks