渭北旱原红富士苹果园不同降水年型水分管理模式研究

于1995年～1997年对渭北旱原红富士苹果园不同降水年型水分管理模式进行了研究。结果表明，在干旱年份，红富士果园水分管理模式以秸秆覆盖方式最佳，在多雨年份，红富士苹果园水分管理模式以果园种植白三叶草方式最佳；并综合分析了不同降水年型不同水分管理模式对红富士苹果产量的影响，不同水分管理模式对果园土壤含水量和土壤有机质的影响及不同水分管理模式对红富士苹果生长状况、外观品质、内在品质的影响。在此基础上，提出了渭北旱地果园各种年型下“果树行间生草 树盘秸秆覆盖”的水分管理新模式。

Research on water management pattern in Fuji apple orchard under different annual precipitations on Weibei rainfed highland

Water management pattern in Fuji apple orchard under differentannual precipitation on Weibei rainfed highland in 1995～1997 was studied. The results showed that the best water management pattern of Fuji apple orchard was wheat straw mulching under low annual precipitation and grass planting under high annual precipitation.The comprehensive analysis was carried out on effects of different water management patters on yield of Fuji apple, soil water conservation and soil organic matter of Fuji apple orchard, growth in various stages and fruit quality of Fuji apple under different annual precipitation. On this base, a new water managemat pattern of orchard on Weibei highland, “grass planting beween apple tree rows + wheat straw mulching on the region of apple tree roots”, was put forward.