No offense but it's a retarded idea to plant you're cannabis in a corn field. By default farmer's keep an eye on their property and are friendly with the local cops. Secondly they spray a lot and I mean a lot of pesticides, insecticides, herbicides, and harvest earlier then you're plant's. Thirdly if you avoid all those issues the simple fact is you would be a lot better off finding public land to plant on. For security, health aspects ie insecticides, and the simple fact you're more likely to be successful.