The following patents disclose some other examples of devices which include some mechanism for moving tiller apparatus laterally in relation to the tractor into and out of the area between plants in a row: U.S. Pat. Nos. 2,489,633 issued to Fulgham; 2,664,802 issued to I. Myer; 2,718...
Wires (L) are connected in circuit with a clock switch and a solenoid valve of the watering apparatus. When the soil beneath the tunnel is sufficiently damp to allow a current to flow between the wires (L) through the soil, the solenoid valve is closed and watering stops....