摘要
通过对3年冬种玉米分期播种资料的统计分析,探讨了冬种玉米产量及其性状与气候条件之间的定量关系。分析表明,热量不足是影响冬种玉米产量的主要气象因子,低温型灾害的出现对冬种玉米的产量产生不利影响;拔节—抽雄期是低温冷害影响冬玉米产量的关键期,另一个次关键期为抽雄—开花时段。
ased on the statistical data of maize sown at different times in winter in three years, the quantitative relationships of yield of wintersowing maize and its character with climate were analyzed. The results showed that the main meteorological factors affecting the yield of wintersowing miaze are the shortage of accumulated temperature and cold damage. Jointingheading was the most critical stadge in which cold damage affected the yield of wintersowing maize. The secondary critical stage affecting the yield of wintersowing maize was headingblossoming.
出处
《中国农业气象》
CSCD
1998年第3期26-31,共6页
Chinese Journal of Agrometeorology
关键词
冬种玉米
气候条件
稳产高产
对策
Wintersowing miaze
Climatic factor
High and stable yield
Countermeasture