Yearly replanting of tillage crops increases soil erosion. Used instead is shallower ploughing or other less-invasive conservation tillage. It is primary tillage implement for deep ploughing without inversion. Autumn pictures&colon; harvesting, tillage and sowing. These tractors are universal machines, capable of both primary tillage and cultivation of a crop. Chisel ploughs are becoming more popular as a primary tillage tool in row-crop farming areas. A cultivator is any of several types of farm implement used for secondary tillage. Also, center-pivot irrigation can reduce the amount of soil tillage. Both tillage and herbicides are used in its control. Modern agricultural science has greatly reduced the use of tillage. "Tillage" can also mean the land that is tilled. This system has advantages over other common practices for weeds management, such as tillage. Local Kazakhs borrowed from immigrants skills of mowing, tillage, fisheries, veterinary medicine, etc. The crop can be established both by no-till and conventional tillage. The word "cultivation" has several senses that overlap substantially with those of "tillage".