If the hood is made from ABS plastic, it will be embossed on the underside somewhere, pick up some Ambroid Pro-weld. You can find it online and if you have a good hobby shop they should carry it.
The grill on my truck is ABS, I used the Pro-weld to fix a few cracks it had and it did a great job. I can post before and afters of the grille if you'd like.
I shattered the hood on my jd a few years ago....talked to the mechanic at my local jd dealer , he told me he uses jb weld to glue the pieces back together...I tried it ,it does work... I just re-enforced the back side and sanded the top a little ,then primer and paint and you can't tell it was ever shattered...good thing I did have all the pieces