Abstract:

Aiming at the contradiction between the decrease of labor force and the expansion of rice area, planting time and planting benefit, and costs and benefits in the large-scale rice production of wheat（rape） stubble in Chengdu, based on the advantages and disadvantages of direct seeding, machine transplanting and hand transplanting, the optimization model of sowing and transplanting in large-scale rice production was established by using linear programming, and the simulation application was carried out according to the actual production. The results showed that the unique optimal solution of the model can satisfy all the constraints. The model may solve the contradiction in large-scale rice production of wheat（rape） stubble in Chengdu. At the same time, considering the uncertainty of agricultural production, the setting of parameters in the practical application process needs to be combined with the actual production.

Key words: rice, large-scale cultivation, cultivation method, linear programming, Chengdu

摘要：

针对成都市麦（油）茬规模化水稻生产中存在的劳动力逐年减少与水稻规模化面积扩张间的矛盾、种植时间与种植效益间的矛盾、成本与收益间的矛盾，结合水稻直播、机插、手插的优缺点，运用线性规划构建了水稻规模化生产中播栽环节的优化模型，并结合实际生产进行了模拟应用。结果表明，优化模型得到了唯一最优解，能满足全部约束条件。优化模型在一定程度上解决了成都市麦（油）茬规模化水稻生产中存在的矛盾。由于农业生产中的不确定性，在实际应用过程中模型参数的设置还需结合实际生产情况。

关键词: 水稻, 规模化种植, 栽培方式, 线性规划, 成都