摘要
1993年冬季至1994年春季之间，延边地区苹果梨花芽遭受严重冻害。经试验及调查发现，花芽受冻害致死率与氮磷钾不同配合比例明显相关，磷氮比、钾氮比在0．5以下时，高磷、高钾处理花芽受害程度明显比低磷、低钾处理轻，花芽全死率明显减少，结果数明显增多；而磷氮比、钾氮比超过0．5时，虽然也有相同趋势，但不明显。
From winter 1993 to spring 1994, blossom bud of apple-pie in Yanbian area were seriously damaged because of cold. The experiment and investigation showed,lethality of blossom bud cold damage significantly related with the different proportion of N,P and K.When the ratio of P,N and K,N was beiow 0.5, cold danage degree in low P and low K treatment was harder than that in high P and high K treatment;When ratio was over 0.5,the effect was not significant, though the result had the same situation.
出处
《延边大学农学学报》
1997年第2期114-118,共5页
Agricultural Science Journal of Yanbian University
关键词
苹果梨
氮磷钾比例
花芽冻害
Apple-pie
Proportion of N,P and K, Blossom bud cold damage
