| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an agriculture cooperation technology for contribution to efficient agriculture by collecting narrow individually owned farmlands into one and forming it as a wide coordinated farmland. <P>SOLUTION: On a boundary of an individually owned farmland A1, a boundary point pile a2, a boundary point pile b3, a boundary point pile c4 and a boundary point pile d5 each of which is formed from a corrosion resistant metal are buried. Boundary points are sequentially buried for an individually owned farmland B to an individually owned farmland Z and one wide coordinated farmland 6 is formed by collecting the individually owned farmlands. In the wide coordinated farmland 6, a fundamental triangle point pile X7, a fundamental triangle point pile Y8 and a fundamental triangle point pile Z9 are buried while protruding pile heads from the ground. Thus, the farmlands are used as one wide coordinated farmland 6 superficially but in order to make the individually owned farmland A1 visible, a sonic wave oscillator with a small-sized metal detector is inserted and fixed at an accurate position of each of the buried boundary point piles. Further, a removable sonic wave receiving position measuring instrument is provided in a head portion of each fundamental triangle point pile, and a notebook-sized computer is connected thereto. <P>COPYRIGHT: (C)2012,JPO&INPIT |
