为了探讨红富士苹果优质、丰产栽培技术，我们于１９８９～１９９５年在河北省石家庄市郊区大马、正定县小屯、灵寿县小东关、辛集市王口等果园进行了试验与示范。试验示范园均位于平原地带，面积总计３０ｈｍ２，属华北大陆性气候，年平均气温为１２℃左右，年降水量５０... In order to explore the high-quality and high-yield cultivation techniques of Red Fuji apple, we conducted experiments and demonstrations in 1989-1995 in the orchards such as Xiaotun, Zhengding County, Xiaodongguan and Wangkou, Xinji, in the suburbs of Shijiazhuang, Hebei Province. Experimental demonstration park are located in the plain area, a total area of ​​30hm2, is a continental climate in North China, the annual average temperature of about 12 ℃, the annual rainfall of 50 ...