山西玉米种植区划研究

A Study on Division of Maize Growing Areas in Shanxi Province

根据山西省不同地域的热量资源,≥10℃年积温、无霜期,生产条件,不同玉米品种对生态环境的反应,以及各地对玉米品种的利用状况等,在普查的基础上,参照山西省综合农业区划,以乡镇为单位,将山西全省玉米种植生态区划分为:春播中晚熟区、春播中早熟区、春播早熟区、春播特早熟区、夏播早熟区和夏播中熟区等六个大的种植生态区。研究结果表明:山西全省各地区玉米种植生态区分布呈多样性,一县多个生态区的县占到68.4%,各生态区玉米生产存在明显的差异,各生态区发展玉米生产应采取不同的对策。

According to sunlight resources,≥10℃ accumulated temperature, non-frost period, production conditions, performance of cultivars in ecological environmentand cultivar utilization in different regions, and with individual township as unit, Shanxi's maize growing ecological areas are redivided into six large growing areas, spring sowing medium late mature area, spring sowing medium early mature area, spring sowing early mature area, spring sowing especiallyearly mature area, summer sowing early mature area and summer sowing medium mature area. The study results show that the distribution of maize growing ecological areas is various in the different part of the province and the number of the counties that has multiple ecological areas amounts to 68.4% of the total. As obvious difference exists in maize production of each ecological area, different strategies should be adopted accordingly.