I sprayed a grassy hilltop that was knee high 3 weeks ago, waited a week sprayed again then threw rye grain and ladino on a very dead looking field, it's been two weeks with several rains but nothing turning green?
Yeah, I would have thought by now your rye would be more than evident. Typically in a week rye is germinating and an inch or two tall. Sounds like the seed either never made contact or has yet to make contact with the soil. I've used this method you mention but the couple times I have done it I have been in a position where I could also burn it before throwing down seed. That's disappointing; clover ain't cheap either. I wonder if it would make it any better if you mowed/bushhogged the hill top...but you may have to re-seed too.
My fields that were done the same way on around the same time frame are a few inches high now. I wouldnt expect to see much with clover but would with the rye. Have you looked for any germinated seed?
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If its that thick your seed may not be reaching the soil. Hard to say without being there on site. Have you checked the ground to find seed and see if it has germinated?