黑龙江省早熟地区玉米种植中存在越区种植、春旱及玉米生育后期低温冷凉等不利因素,通过分析北方玉米早熟区产业现状、气候因素和农民选种等方面因素,提出了一套相应解决措施。 Heilongjiang Province precocious maize planting there are cross-planting, spring drought and low temperature and cool corn late growth and other unfavorable factors. By analyzing the status of maize premature crop in North China, climate factors and farmers selection and other factors, a set of corresponding solutions Measures.