关键词: 豌豆, 豌豆, 离体, 非离体, 有丝分裂指数, 中期分裂指数

Abstract: Purpose: Through experiment, finding out the best cropping density that reduce cropping cost in order to improve per unit area yield and the economic effect. Method: Adopt the random area group experiment. Result: It is benefit for single plantlet or thicket growing to develop that increase planting space. The cropping density is higher the yield is higher. There are three factors of composing output which are row room, space and single or pair of plants. Among three factors, row room contributes to the most yield, space take the second place, pair of plant contributes less yield than space. The cost of growing seedling and cropping management are composed by three factors: row room > pair of plant > space Conclusion: The best compose of cropping density is 20cm*10cm by row room and space with pair plant.