Vol. 69 No: 3

Title:
ALCEPAS, an Onion Growth Model Based on SUCROS87. I. Development of the Model

Author:
C.L.M. DE VISSER

pp: 501-518

Abstract:
A dynamic simulation model for onion crop growth is presented that is based on SUCROS87, a Simple and Universal Crop Growth Simulator. Onion specific values of parameters and relations of SUCROS87 were established using results from field experiments. The model simulates potential crop growth when weeds, pests, diseases and soil conditions are not limiting growth and there is ample supply of water and nutrients. The model accounts for the influence of sowing date and plant density. The combined influence of environmental factors on leaf growth, bulb initiation and maturity is incorporated. The potential use of the model is discussed.

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