| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide fertilization according to the soil characteristics, and to provide fertilization to be carried out efficiently. <P>SOLUTION: A fertilizer apparatus includes traveling means for traveling on a paddy field, measuring means for measuring the soil characteristics of the mud part thereof, and fertilizing means for applying fertilizer to the mud part. The measuring means includes depth-measuring means, electrical conductivity-measuring means and hardness-measuring means. The fertilizer apparatus (101) acquires "electrical conductivity of the mud part: EC", "depth of the mud part: D" and "hardness of the mud part: H" so as to be related to "position information: P" obtained by the traveling of the traveling means, (107, 108) determines "fertilizing amount: Y" so as to be 0 when "hardness: H" of the mud part is soft, (109) calculates "fertility degree: F" from "electrical conductivity of the mud part: EC" and "depth of the mud part: D", and (111) further calculates "fertilizing amount: Y" based on "fertility degree: F". <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
