a machine for introducing aqua ammonia solution into the soil (during plowing, presowing cultivation, sowing, or top-dressing of row crops) and for spraying with herbicides for chemical weed control.
The ammonia-herbicide applicator is mounted on a tractor or assembled with a cultivator, plow, sower, or other agricultural machine. The main parts of the ammonia-herbicide applicator used in the USSR are reservoirs for the solution, a gear pump driven by the tractor’s power take-off shaft, suction and pressure lines, a vacuum assembly, an intake hose, a mounting system, and 8-m or 15-m spray booms. When waste gases pass through the motor’s exhaust pipe the vacuum assembly creates suction in the solution reservoirs and the machine is refilled. The solution’s rate of flow is regulated by selection of spray caps (nozzles) of various diameters, by establishing a given operating pressure, or by increasing or decreasing the number of sprayers on the boom, as well as by adjusting the machine’s rate of movement. The machine has a range of 1-15 m and its reservoirs hold 560 /. Its output when applying the aqua ammonia solution, depending upon the soil-treating equipment or sower used, is from 0.5 to 3 hectares per hour. The depth at which the fertilizer is inserted is 8—18 cm. The unit is operated by the tractor driver.