早熟苹果美国８号引种观察美国８号苹果系郑州果树研究所于１９８５年从美国引入。我所于１９９３年引栽于山东省邹城市白塔寺园艺场，同期栽植嘎拉、特早红品种进行对比观察，立地条件均为河滩改造的砾质壤土，土层较浅，５０ｃｍ以下为粗砂，有机质含量为０．７１％。经... Early Apple introduced the United States on the 8th observation The United States on the 8th apple fruit Zhengzhou Institute of Technology introduced from the United States in 1985. I was quoted in 1993 in Zhaocheng City, Shandong Province Baita Temple horticultural field, the same period Gala, especially early red varieties were observed and compared site conditions are gravel loam remodeling, loamy, less than 50cm Coarse sand, organic matter content of 0.71%. through...