広面積薬剤散布の効果に関する一考察

概要

論文の詳細を見る
The effectiveness of the pesticides applicated to partial small area in the large field, e.g. paddy fields, is affected by non-applicated area, from where pests invade every moment. Therefore, the whole large-area application for instance, aerial application or some of large-scale ground appli-cations, seems to be more effective than partial small-area application. In this paper, the authors estimated mathematically the effectiveness of whole large-area application in comparison with partial small-area application, by using the equation derived from the two dimensional diffusion formula applicable to fumigant diffusion. In this equation, deposit of chemicals, as the function of effectiveness, its gradual decrease in the field, and other factors influencing effectiveness are taken into account. The tables are calculated by substituting one or two figures for each factor, which show that the effectiveness of whole large-area appliction is 0〜50% higher than that of partial small-area application. The earlier applied and the later determined, the more distinct the effectiveness of whole largearea application becomes.
日本応用動物昆虫学会の論文
1965-09-25