关键词: 知识管理, 土壤容重, 模拟, 棉花根系

Abstract: In order to effectively manage the knowledge of crop roots growth in the soil, aiming  at the problem of different cotton roots morphological features and growth characteristics with different soil bulk density, a method of knowledge management of crop roots-soil system by combined knowledge model with visual simulation is proposed. The mathematical model of the quantitative relationship between the cotton taproot axial growth rate and soil bulk density is developed to build a knowledge management platform of cotton roots as related to soil bulk density  by using SimRoot, the roots architecture geometric simulation model, to simulate the variation of taproot axial growth rate with soil bulk density. The results show that the knowledge management method combined with visual simulation can predict cotton roots growth state in different soil bulk density.

Key words: knowledge management, soil bulk density, simulation, cotton roots