Abstract: An anti-rotation pipe clamp type of apparatus is described for securing a section of gated irrigation pipe thereto. The section of gated irrigation pipe is placed on top of the ground surface. One or more anti-rotation pipe clamps are used, as necessary, to prevent the various sections of gated irrigation pipe from rotating axially as they are periodically heated and cooled. The anti-rotation pipe clamp includes a base that is placed on top of the ground surface and maintains the anti-rotation pipe clamp in a predetermined attitude with respect to the ground surface that is generally parallel thereto. A clamping mechanism is attached to the base that includes a flexible strap which is attached to the base at one end and which surrounds a portion of the gated irrigation pipe.

Abstract: An attachment for forming an irrigation furrow in top soil of a crop-growing field comprises a carriage for towing behind a tractor or the like, the carriage having a forward furrow-forming roller and an aligned aft furrow-forming roller and a suspension assembly with individual spring devices for applying resilient downward pressure on the forward and aft rollers. In use, the aft roller breaks up soil clods and the like which may collect behind the forward roller in the formation of the furrow, thereby producing a smooth and regular furrow enhancing the flow of irrigation water therein.