摘要
根据陕北榆林仁用杏分布的地理特征和区域气候特点设立了4个试验点,从观测仁用杏物候期与气象条件变化的关系入手,探讨仁用杏晚霜冻害发生规律及其有效预防措施,提出采用灌水(GS)或用植物防冻剂100倍液灌根(ZW1)措施可推迟仁用杏花期3～4d,能有效避开春季晚霜冻害,提高座果率;及时准确的气象预报,可以为熏烟法提供具体的实施时间,减轻冻害,促进丰产;从而为仁用杏的丰产栽培管理提供科学依据。
Four experiment spots were established to find out the phenological period of kernel-apricot in relation to the late frost damage as well as to find the proper approach to prevent and control the damage.Irrigation together with the use of ZW1 at 100 times could postpone the flowering for 3-4 d,which can avoid the late frost damage and enrich the fruit set.Precise prediction can help to decide the time for fumigation so as to minimize the damage caused by late frost.
出处
《陕西林业科技》
2012年第5期63-66,共4页
Shaanxi Forest Science and Technology
关键词
仁用杏
晚霜冻害
防治技术
措施
Kernel-apricot
late frost damage
control techniques
measures
