First of all, you can build a rocket turret in the center of this level (pictured), quickly clean up nearby props and make money from scratch;

After cleaning up the props in the middle, you will get turrets hidden in the props, which can be used to continue cleaning up the props around the level. Making money is king. If you have money, upgrade the turret and improve your combat effectiveness;

The following is the 40th crystal radish layout in Defending Radish 2. After the props are cleared, all turrets obtained can be upgraded to full level.