Mitteilungen der Gesellschaft für Pflanzenbauwissenschaften Band 23

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höheren Skalenebenen zu einer Zunahme der Nutzungseffizienz des einen
Wachstumsfaktors führen, wenn der andere in höherer Menge verfügbar ist. Diese
Interaktion entspricht dem „Optimumgesetz“ Liebschers (Liebscher 1895). De Wit
(1992) hat die nach wie vor relevanten Implikationen dieses Sachverhalts im Hinblick
auf die Diskussion zur optimalen Intensität der Pflanzenproduktion treffend
zusammengefasst: „Therefore strategic research that is to serve both agriculture and
its environment should not be so much directed towards the search for marginal
returns of variable resources, as towards the search for the minimum of each
production resource that is needed to allow maximum utilization of all other
resources“.
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