植物群落制御モデルによる農業生産システムの研究　ＩＶ　　作物生産に関する制御問題

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タイトル別名
  • Studies of Agricultural Production Systems on the basis of Plant Community Control Model (IV)
  • ショクブツ グンラク セイギョ モデル ニヨル ノウギョウ セイサン システム
  • 作物生産に関する制御問題

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In this paper, the Direct Search Method developed by Seinfeld and his co-workers was applied to simulate a control problem for crop production.<br>The example is assumed to be a problem of maximizing profit by picking off one plant, when plant community is composed of two plants, such as crop and weeds. Control decision is on-off control, that is only able to be taken weeding or not weeding. Performance index, evaluate total weight of yield and yield effiency, can be obtained as the sum of its component, each of which is multiplied by weight parameters.<br>Three typical cases, different from weight parameters, are simulated by computer. It is difficult to compare the result to actual crop production, because the model is simplified and has many restrictive condition. But it seems to be reasonable from the point of view of ordinary experience in crop production. General community control model was introduced in the first report of the same title and much argument has been made in the subsequent reports. It seems to be possibile to discuss many problems, not only in modeling of the field ecological systems but also in analizing crop production problems.

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