Moisture closure in the spring, after autumn plowing, is a very important agricultural event. But the home-made rotary-zubovaya harrow "AKACIA" for my motoblock can not only loosen the ground, but also distribute plant residues and weeds on the surface. The hard shafts of the harrow perform the function of press rollers, which not only break up the earthy clumps, but also level the surface layer. Rotating teeth mix layers of soil and saturate it with oxygen.