山楂是我县主栽果树树种之一,面积已达三万多亩。为抓好山楂低产园的改造。提高经济效益,及促新建园的管理,特选择我县具有代表性的土层薄、肥水条件差的葛家山岭薄地成龄山楂低产园进行低产变高产的技术开发。从1984年至1987年采取七项关键技术措施,四年来亩产由-99公斤提高到 Hawthorn is one of the main fruit tree species in our county, the area has reached more than 30,000 mu. To do a good job hawthorn low-yielding garden transformation. Improve economic efficiency, and promote the management of new parks, especially the selection of my county representative of the thin layer, poor water and fertilizer conditions Gejiashanyao thin to mature hawthorn garden for low-yield and high yield of technology development. From 1984 to 1987 to take seven key technical measures, four-year yield increased from -99 kg