摘要
吉林省玉米生产存在一个明显趋势,即当玉米产量连续几年增长后总是要受到各种因素的影响,使得产量下降,并降至在一个较低的水平徘徊,之后又逐渐恢复和上升,如此周期性波动,总体呈现出上升的趋势。由于玉米产量增产和减产都是多种因素长期积累、交互作用的结果,产量的上升和下降具有一定的连续性。本文就吉林省玉米产量波动的规律和原因及玉米增产的潜力进行分析,提出提高吉林省玉米产量的技术措施。
There is a clear trend of maize production in Jilin province.That is,the maize production could continuous growth in several years,however,it is always subject to various factors and makes the production decline and drop to a low level hovering,following by gradually recovery and rise,so cyclical fluctuations,and showing a rise in the overall trend.Due to the increase and decrease of maize production is a result of the accumulation with various factors and the interaction,the production rise and fall has ce...
出处
《玉米科学》
CAS
CSCD
北大核心
2010年第6期148-152,共5页
Journal of Maize Sciences
关键词
玉米
产量
增产因素
Maize
Yield
Factor of increasing yield
