High-speed system for weed control

A nozzle rod, comprising:

• a plurality of nozzles configured to spray a fluid;
• a plurality of supply lines in fluid communication with the plurality of nozzles;
• and
• a plurality of control lines configured to control spray of the fluid from the plurality of nozzles,
• wherein the nozzle rod is configured for attachment to a support element, and attachment of the nozzle rod to the support element aligns the plurality of nozzles with a railway track bed, a railway rail, or a railway track embankment, or any combination thereof,
• wherein the nozzle rod comprises a group of closure rail nozzles and a group of embankment nozzles, the closure rail nozzles are configured for alignment above the railway rail, or between adjacent railway rails, or both to spray the fluid on the railway track bed between adjacent railway rails, and the embankment nozzles are configured for alignment above the railway track embankment, beside the railway track embankment, or both to spray the fluid on the railway track bed,
• wherein the group of closure rail nozzles comprises first and second subgroups of closure rail nozzles, the first subgroup comprises closure rail nozzles that are closest to railway tracks located diagonally underneath them, the closure rail nozzles of the first subgroup of closure rail nozzles are half-jet nozzles, and the closure rail nozzles of the second subgroup are full-jet nozzles.