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滇中是云南主要的种植业区，自然条件优越，生产条件较好，生产水平较高，素有精耕细作的传统习惯，各种大田农作物的单产均高于全省平均水平[1]。但由于滇中地区人多耕地少，对粮食、蔬菜等农产品的需求量较大；特别是大中城市所需的粮食、蔬菜供应缺口较大。因此，以市场为导
Yunnan is the main planting area in Yunnan. It enjoys superior natural conditions, better production conditions and higher production levels. It has the traditional habit of intensive cultivation. The yield of all kinds of field crops is higher than the average level of the province [1]. However, due to the small population of cultivated land in central Yunnan, the demand for agricultural products such as grain and vegetables is large. In particular, the supply of grain and vegetables needed by large and medium-sized cities is relatively large. Therefore, guided by the market