| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To spread a sowing machine capable of performing one grain point-sowing in a high accuracy by a high operational efficiency for seeds having special and irregular forms like those of sunflower, and executing the one grain point-sowing in a high accuracy and high operational efficiency without paying a large sum of initial investment. <P>SOLUTION: This sowing roll 1 is provided by forming a screw groove 10 along a rotational driving direction on the surface of a drum part 1s, and also forming a sowing hole 11 for delivery, housing one grain of seeds on the surface of the drum part 1s in the progressing end side of the screw groove 10. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
