1. First of all, don't use manual pulling unless you want to grow vegetables in a small piece of wasteland in your yard. In this case, you can pull it by hand. If it is a large wasteland, it is simply not feasible.

2. Secondly, if there are no trees but weeds in the wasteland, you can rake it with a harrow machine, then dig deep and dry it, destroying the roots of weeds and planting it in the future.

3. In addition, it can be treated with sterile herbicides, which is also a method that everyone considers more. In the past, paraquat was used more, but now glyphosate and glufosinate can be used after paraquat is banned. If it is a wasteland for many years, the effect may not be good once, but it can be sprayed 2-3 times, depending on the weeds.