Division of winter wheat planting area based on climate in Heilongjiang Province

According to the field experiments, production surveys, and the climate data of Heilongjiang Province in the past few years, five agricultural meteorological indexes including the winter cold, depth of snow accumulation, water content in the soil, temperature and wind speed in the turn green period, spring cold are put farward, which affects the safety of winter wheat during wintertime. These five indexes for the main index and other indexes for amending index, three winter wheat bands in Heilongjiang Province are divided including growing band, risk band and undaptable band. The production suggestions to develop the winter wheat are provided also in Heilongjiang Province.