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吉林省栽培的山楂,长期以来由于管理粗放,生长势弱,产量很低,全省成龄树平均单株产量仅为2.8斤。为了探索成龄树的丰产栽培技术,迅速提高山楂产量。我所于1974年承担了“山楂抗寒品种选育及栽培技术研究”的任务。1979年又正式列出“山楂成龄树丰产栽培技术研究”课题。通过在梨树县叶赫公社新立大队山楂园三年间试验,达到或超过了丰产栽培技术措施的各项衡量指标。这些衡量指标是: 1.树冠外围延长枝平均长度在35厘米以
The hawthorn cultivated in Jilin Province has long been extensively managed, weak in growth and low in output. The average yield of mature trees in the province is only 2.8 kg per plant. In order to explore the cultivation of mature trees, rapid growth of hawthorn production. I was in 1974 to undertake the “hawthorn cold breeding and breeding technology research” mission. In 1979 and officially listed “hawthorn high yield cultivation technology research” subject. Through the trial of Hawthorn Garden, Xinli Faction, Yehe Commune, Lishu County, all the measures of high-yield cultivation techniques have been reached or surpassed. These measures are: 1. Extensions on the periphery of the crown average length of 35 cm