stage planning
2.Heuristic Algorithms for Multi-stage Production Planning in ERW Pipe Manufacturing
6.This paper introduces the characteristics of Ce 253 and BoA,that are parents of the new combination hybrid rice the late rice Boyou 253,and summarizes the key techniques of choosing the suitable seed production field and the stage of flowering,planning rationally the sowing interval of the parents,culturing the strong tillering seedling,suitable density,culturing the double high-yielding population,predicting and regulating the stage of flowering and appropriate time of spraging GA.

