Does anyone have good dog training company in colorado springs you know of?

What are some ways that I can block my dogs off from a section of the lawn?

I have a small backyard that is fenced in. Unfortunatly, both of my dogs love to play and dig so my backyard went from a partial green grass to a dirt yard. I live in Colorado so the weather is very dry so its super hard to get grass without grass seed/fertilizer. I know for a fact that fertilizer is very dangerous to dogs and cayenne pepper does not keep them away. I was thinking of putting up a temp fence but didn’t know if there was another way that was possible? Like I said, both of my dogs enjoy digging so I would have to put the fence in the ground which would be very trouble some since this ground is like clay and very hard to dig in. And if I don’t put a fence up. How many hours would it take for the fertilizer to take affect? That a way, I know that my dogs can’t go in the backyard for x amount of hours. I just need to know what kind of options I have.
The back yard I have is a very small backyard. It could fit a 10X12 gazeebo with extra 5ft in length (that’s how small it is). If this is too small for dogs, tell the military that because I live on post. I take them for exercise once a week and the days I don’t take them to the dog park is when I play with them via toys. Since I live in a townhouse and both of my neighbors both have dogs, they dig to play with them because the dogs smell is different (I guess because they never leave them alone). So an invisable fence is mostly used for large fenced in areas. So an invisable fence might work. I really like the chicken wire idea. I have 2 puppies (1 is a 1 yr old and the other is 6 months) so both enjoy playing and have this huge energy. They’ll play for 2 hours in the backyard and as soon as the neighbors dogs go in the backyard, they get all excited and dig to get to them.

How can I help stop the ban of pit bulls in California and anywhere else in the United States?

I grew up around Pit bulls and we have have never had a problem with them biting or attacking anyone, while I know that isnt true for all Pit Bull owners I do know it’s all about how you raise up your dog. Just like children you have to train them the right way. Some dogs have problems being around other dogs because they are never around other dogs, some dogs have a problem being around children because they aren’t from a household that has kids. I just think it’s completely unfair to target a whole breed with no real evidence as to why? Cases of dog bites should not justify this because if that were the case there would be a lot more breed specific dog bans including your “loving” Labordors. Unless they can prove that pit bulls are genetically inclined to attack for no reason without the influence or training of an owner they have no right to ban they whole breed.
I’m looking for sincere pit bull lovers and owners to help stop this ridiculous law.