摘要
Abstract
In order to explore the effects of chemical fertilizer reduction combined with organic fertilizer on soil fertility and fruit quality of apple orchards,a 10-year-old red Fuji apple orchard in Changdao Town,Xihe County,Longnan City,Gansu Province was used as the test field.Four treatments were set up,including conventional chemical fertilizer(CK),chemical fertilizer reduction 20%combined with organic fertilizer 3 000 kg/ha(T1),chemical fertilizer reduction 40%combined with organic fertilizer 6 000 kg/ha(T2),and total organic fertilizer 12 000 kg/ha(T3).The soil physical and chemical properties,soil enzyme activities and fruit quality were determined.The results showed that the soil organic matter content,available nitrogen content,available phosphorus content,available potassium content and pH value of T2 treatment apple orchard were higher.The soil urease activity,sucrase activity and catalase activity of T2 treatment apple orchard were significantly higher than those of CK.The apple single fruit weight,soluble solids content,sugar-acid ratio and fruit hardness of T2 treatment apple orchard were better than those of CK,T1 and T3.In summary,chemical fertilizer reduction 40%combined with organic fertilizer 6 000 kg/ha of apple orchards in Changdao Town can significantly improve soil fertility and fruit quality.关键词
苹果园/化肥减量/配施有机肥/土壤肥力/果实品质Key words
Apple orchard/Chemical fertilizer reduction/Organic fertilizer/Soil fertility/Fruit quality分类
农业科技
