黑龙江省玉米单产提高的制约因素及应对策略

Restriction Factors and Countermeasures of Increasing Maize Unit Yield in Heilongjiang Province

玉米是黑龙江省第一大粮食作物,种植面积、产量以及商品率位居全国首位。本文从生产布局、种植面积、总产量和单产分析了黑龙江省玉米生产现状,并对黑龙江省玉米单产增长的制约因素进行了分析,提出进一步提高玉米单产的策略。

Maize is the largest grain crop in Heilongjiang Province, and its planting area, yield and commodity rate rank first in China. This paper analyzes the current situation of maize production in Heilongjiang Province from the aspects of production layout, planting area, total yield and yield per unit area, analyzes the restricting factors of maize yield growth in Heilongjiang Province, and puts forward some strategies to further improve maize unit yield.