中国农学通报2025，Vol.41Issue(31)：72-78,7.
陇东旱塬区苹果园土壤养分含量与分布
Soil Nutrition Content and Distribution of Apple Orchards in Loess Plateau of Eastern Gansu Province
摘要
Abstract
Taking the apple orchards in the main apple-producing counties of Jingning,Zhuanglang,Jingchuan and Lingtai in Pingliang City of eastern Gansu Province as the research objects,this study analyzed the distribution characteristics and differences of soil nutrients in the apple orchards in Pingliang.The contents of organic matter,total nitrogen,available phosphorus and available potassium were assayed from 0-100 cm depth soil profile samples of apple orchards in four counties.The results showed that the average content of soil organic matter in 0-100 cm soil layer of orchard in Jingning,Zhuanglang,Jingchuan and Lingtai were 11.61,11.90,10.84 and 12.16 g/kg;the average content of total nitrogen was 0.8724,0.8074,0.8525 and 1.0234 g/kg,respectively;the average content of available phosphorus was 93.85,21.18,33.72,28.49 mg/kg;and the average content of available potassium was 217.11,244.71,296.74,275.22 mg/kg,respectively.Overall,the content of organic matter and total nitrogen in orchards of four counties was relatively deficient,while the available phosphorus was at a moderately abundant level,and available potassium was at an abundant level.Additionally,the nutrients contents in the upper soil layers were higher than those in the lower layers.Based on the current soil nutrient status in the main apple-producing counties of Pingliang City,it is recommended to increase the application of organic and nitrogen fertilizers in production to improve soil fertility,thereby benefiting apple cultivation.关键词
平凉市/果园/土壤养分/氮磷钾Key words
Pingliang/apple orchards/soil nutrient/NPK分类
农业科技引用本文复制引用
张宁,李雅洁,王永栋,李利利..陇东旱塬区苹果园土壤养分含量与分布[J].中国农学通报,2025,41(31):72-78,7.基金项目
甘肃省省青年科技基金项目"黄土高原陇东旱塬区苹果园土壤养分评价及累积特征研究"(23JRRL0004). （23JRRL0004）
