陇东旱地苹果园土壤主要养分调查及肥力质量评价  

Investigation on Main Nutrients and Fertility Quality Evaluation of Soil in Apple Orchard in Longdong Dryland

作　　者：姚志龙[1] 韩萍[1] 王军锋 YAO Zhi-long;HAN Ping;WANG Jun-feng(College of Agriculture and Forestry Science and Technology,Longdong University,Qingyang 745000,Gansu;Qingyang Fruit Industry Development Center,Qingyang 745000,Gansu)

机构地区：[1]陇东学院农林科技学院,甘肃庆阳745000 [2]庆阳市果业发展中心,甘肃庆阳745000

出　　处：《陇东学院学报》2022年第5期1-5,共5页Journal of Longdong University

基　　金：中央引导地方科技发展专项(QNKB2-2)。

摘　　要：研究陇东地区旱地果园土壤主要养分状况及评价土壤的肥力对该地区果园科学管理及果业的持续发展有重要的参考价值。对甘肃庆阳30个果园0~20cm和20~40cm土层土壤主要养分连续3年进行农化分析,并用fuzzy(模糊)综合指标评判法进行肥力质量评价。结果表明,90%以上果园土壤有机质、全氮及碱解氮含量中等偏低,果园间变异较小;80%果园速效磷含量丰富或极丰富,且果园间差异显著;速效钾平均含量较丰富,且呈现两极分化分布态势。绝大多数果园养分在土壤垂直剖面上表现为随深度增加而减少的趋势;90%以上果园土壤肥力质量等级为Ⅲ级以下,即肥力质量较差。This overview has important reference value for the scientific management and sustainable development in the industry of apple in future through the research on soil nutrients.And agricultural chemical analysis was carried out for three consecutive years on the main nutrients in soil layers in 0-20 cm and 20-40 cm of 30 orchards of Gansu Qingyang and fuzzy comprehensive index evaluation method was used to evaluate the quality of fertility.The results showed that the content of soil organic matter,total nitrogen and alkaloid nitrogen in more than 90% orchard was moderately low,and the variation among orchards was small.The content of available phosphorus in 80% orchards was rich or extremely rich,and the difference between orchards was significant.The average content of available potassium was more abundant and showed polarization distribution.Nutrients of most orchards showed a tendency of loss with the increase of depth in the vertical profile of soil.Soil fertility quality grade of more than 90% of orchards was below levelⅢ,as well as the fertility was poor.

关 键 词：苹果园 土壤养分 fuzzy综合指标评判法 肥力质量评价 

分 类 号：S66[农业科学—果树学]