| 摘要 |
<p>A computer, that executes processing whereby: a storage unit is browsed that stores predicted outbreak periods for pests, for each pest identification information; a first pest is identified for which at least part of the predicted outbreak period is included in the period until the predicted harvest date for a crop to be sprayed with an agricultural chemical; a storage unit is browsed that stores, for each agricultural chemical name, the number of days before harvest is possible and identification information for the corresponding pest; a first agricultural chemical name is identified that is an agricultural chemical name corresponding to the identification information for the first pest, and for which the number of days before harvest is possible is longer than the period from the predicted outbreak period for the first pest to the predicted harvest date or the end of the predicted outbreak period; the date for spraying for said agricultural chemical name is calculated as the date preceding the predicted harvest date by the number of days before harvest is possible for the first agricultural chemical name; and the first agricultural chemical name and the spraying date are output.</p> |
