摘要
本文根据１９８８～１９９３年在岭东地区进行的４４个玉米氮磷配合试验和１４个钾肥用量试验结果，分析了旱地玉米氮磷钾肥效及相关的肥力因子。同时进行了肥力分级，建立了相应的施肥模式和肥力判别函数，提出了合理施肥对策。
According to the experimental results of 44 combinations of N. P fertilizer and 14potasium fertilizer application rates in Lingdong region from 1988 to 1993,I analysed the N.P. K efficiency and correlative elements of fertility.At the same time,conducted fertility classification, Set up ralevant model of applying fertilizer and distinguishing function of fertility, and put forward reasonal countermeaure of applying fertilizer.
出处
《黑龙江农业科学》
北大核心
1995年第4期7-10,共4页
Heilongjiang Agricultural Sciences
关键词
玉米
施肥
氮
磷钾
肥效
N. P. K efficiency, Fertility classification, model of applying fertilizer, Distinguishing function.
