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从理论上分析了描述机械化农业系统的演化模式的基本方程—逻辑斯梯方程，并对其轨线依参数变化的情况做了分析。结果表明逻辑斯梯方程所包含的演化形态，不仅有传统的收敛于均衡和稳定的周期振荡，还有混沌但有界，发散并导致结构解体。结论丰富了数理科学描述真实机械化农业系统的能力，也增强了其解释能力。
The basic equation describing the evolution mode of mechanized agricultural system is analyzed theoretically - Logistic Stair Equation, and its trajectory is analyzed according to the change of parameters. The results show that the evolution of the Lorentz equation contains not only the traditional periodic oscillations that are convergent and stable, but also the chaotic but bounded, divergent and disintegrated structures. The conclusion enriches the ability of mathematical science to describe a truly mechanized agricultural system and enhances its explanatory power.