Bob Tuproq muhofazasi, qabul qilingan qarorlar, chora tadbirlar...................................................................................................58

5.1 Tuproqning inson hayotidagi ahamiyati va insonning unga ta’siri……..58

5.2 Tuproqni ifloslantiruvchi manbalar.........................................................61

5.3Agroekotizimda tuproqning ahamiyati va uning muhofazasi va chora tadbirlari................................................................................................................65