I'm new to chufas so I need some advice...

I've studied up on them a little, and here's what I've gathered: 40-50 lbs. per acre from May-July at a depth of 1-1.5 inches with 400-500 lbs. of fertilizer.

I have a food plot that I'm planning on converting to a chufa patch. The field is roughly 1 acre in size and is currently a food plot (wheat, rye, peas, & greens) - this field is not very "weedy". We will be using a hopper-type spreader on the tractor (broadcasting) and will use a 4 wheeler drag (section of chainlink fence) to cover it with.

Here's what I'm wondering about:

When do I need to initially disk?

Do you think I'll benefit very much if I spray the plot prior to disking (since it's not very "weedy")?

What type of fertilizer is best suited for this (I've read triple 13 is ok)?

From what I've noticed, our drag usually covers the seed about .5-1 inch deep. Do you think I'll be alright if I drag it twice?