| 摘要 |
PURPOSE:To provide a solution feeder which can prevent the fertilizer precipitated while the solution is stopped to feed from blocking the grooves in the dripper by feeding water for a certain time, after the fertilizer solution is fed through a dripper, thereby flowing off the fertilizer solution remaining in the dripper with water. CONSTITUTION:In a fertilizer solution feeder where the fertilizer solution prepared by diluting the concentrate with water is fed through the dripper 14 intermittently to the crop plants, water is fed in a certain time, after the solution is fed. For example, concentrates are fed from the concentrate tanks 2, 3 into the mixing barrel 3 and diluted with water from the tank 1 to prepare the fertilizer solution. Further, the pump 8 and the electromagnetic valve 11 are actuated every a certain time by the indication of the computer controller to feed the diluted fertilizer solution intermittently to the dripper 14, further prior to stopping the pump 8 and the magnetic valve 11, the electromagnetic valves 2a, 3a are used to stop the feed of the solution so that the solution to be fed to the dripper 14 becomes only water, for several seconds before feeding is discontinued. |
