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我校于1996—2000年对新红星苹果进行了优质丰产综合配套技术开发.取得了较好效果,现总结如下。一、基本情况试验园位于冀南曲周县娄寨村,年平均气温12.7～14℃,无霜期210天,年日照时数2900小时,年降水量679.8毫米,7～8月降水量占全年降水量70%～80%。6～8月平均气温25～26℃,土壤为潮土,pH7.5,栽植密度2米×4米,南北行向,授粉品种金矮生,砧木为西府海棠,1993年
Our school in 1996-2000 on the new Red Star apple production of high-quality integrated technology development has achieved good results, are summarized as follows. I. Basic conditions The test park is located in Louzhai Village, Quzhou County, southern Hebei Province. The average annual temperature is 12.7-14 ℃. The frost-free period is 210 days. The annual sunshine duration is 2900 hours. The annual precipitation is 679.8 mm. The precipitation from July to August accounted for the whole year Precipitation 70% ~ 80%. From June to August, the average temperature is 25-26 ℃, the soil is alluvial soil, pH7.5, planting density is 2m × 4m, north-south direction, pollination varieties of gold dwarf, rootstock is Xifu Begonia, 1993