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枣树“开甲”在我国应用已有悠久历史,远在1400年前的“齐民要术”中就有记载。目前,河北、山东、河南等省仍把“开甲”作为一项主要增产措施。我省是全国重点枣树基地之一,品种多,分布广,由于管理粗放,产量低而不稳。“开甲”技术在我省基本上没有应用。六十年代中期,山西省果树科学研究所曾做过此项研究。1983年,我们在探讨枣树丰产技术试验过程中,发现枣树“开甲”有显著增产效益。鉴于我省枣树品种及气候、土壤条件与外省差异较大,生产上又无实践经验的现状,探索适合我省条件的枣树“开甲”技术
Jujube “open armor” has a long history of application in our country, as far as 1400 years ago, “Qi Min Yao Shu” there are records. At present, Hebei, Shandong, Henan and other provinces still use “open armor” as a major measure for increasing production. The province is one of the key jujube bases in China with a large variety and widely distributed. Due to extensive management, the output is low and unstable. “Open armor” technology in our province basically no application. In the mid-1960s, Shanxi Institute of Fruit Science had done this research. In 1983, we explored the high yield of jujube technology in the process of testing and found jujube tree “open armor” a significant yield increase. In view of the jujube species in our province and climate, soil conditions and other provinces differ greatly, there is no practical experience in the production of the status quo to explore the conditions for our province Jujube “open armor” technology