黑龙江省玉米品种布局的农业气候依据

A SYSTEM DICIDING WHICH TYPE OF CORN TO PLANT IN HEILONGJIANG PROVINCE

根据玉米分期播种资料，得出不同品种从播种到出苗、从出苗到抽雄及从抽雄到成熟的热量指标，以地区热量资源的满足程度确定玉米成熟度及成熟概率。根据不同品种的成熟概率及收益状况，利用概率决策方法确定地区的主栽品种，利用线性规划方法求解不同品种最佳搭配的比例。可为充分利用热量资源，获得最佳的经济效益提供气候依据。

Based on data of corn seeded at different times,this paper obtains heat indexes of different types of corn for the periods between seeding and sprouting, between sprouting and heading and between heading and mature. Degree of mature and probability of mature can be determined by satisfaction of regional source of heat.According to probability of mature and benifit,probability decision method can be adapted to determine main type of corn to plant in the area and linear programming can be used to calculate the optimal arrangement ratio among varieties of types of corn.Therefore,powerful proof can be offered for rational using of resource of heat and gaining optimal eonomic benifit.