上海郊区不同种植区域桃园土壤养分特征研究  

Soil nutrients characteristics in different cultivation area of peach orchards in Shanghai suburb

作　　者：褚长彬[1] 赵峥[1] 周德平[1] 吴淑杭[1] 金海洋[2] CHU Changbin;ZHAO Zheng;ZHOU Deping;WU Shuhang;JIN Haiyang(Eco-environmental Protection Research Institute,Shanghai Academy of Agricultural Sciences,Shanghai 201403,China;Shanghai Agro-Technology Extension Service Center,Shanghai 201103,China)

机构地区：[1]上海市农业科学院生态环境保护研究所,上海201403 [2]上海市农业技术推广服务中心,上海201103

出　　处：《上海农业学报》2020年第2期108-113,共6页Acta Agriculturae Shanghai

基　　金：上海市科技兴农重点攻关项目[沪农科攻字(2014)第7-2-4号]。

摘　　要：土壤养分状况是影响作物生长的关键因素,采用ASI土壤养分状况系统研究法,分析上海不同种植区域桃园土壤的养分特征和差异,以期为桃园中养分的科学管理提供参考。结果表明:不同种植区域桃园土壤中养分含量存在显著差异,其中,浦东区的土壤有效磷和速效钾含量均显著高于其他种植区。在土壤中微量元素和有机质含量方面,则是金山区普遍高于其他种植区。根据ASI法养分分级标准,上海各种植区桃园的土壤养分含量普遍处于高或极高水平,各桃园应根据当前养分状况适当降低施肥量、调整有机肥施用比例,从而实现土壤养分的平衡供给与高效利用。采用ASI法进行土壤营养诊断并进行按需施肥是实现桃园养分科学管理的有效手段。Soil nutrients status is the key factor that impacts crop growth and productions.Agro Services International(ASI)analysis method was adopted in this study to investigate the soil nutrients characteristics in peach orchards across different cultivation area in Shanghai.The study results were helpful for the scientific fertilization in peach orchards.The study results indicated that soil nutrients characteristics showed great discrepancy across different cultivation area.Soil available P and K contents in Pudong area were significantly higher than the other cultivation areas.However,peach orchard in Jinshan area showed significantly higher soil OM contents and several medium trace elements.According to the grading standard of ASI analysis method,the soil nutrients status in peach orchard across Shanghai generally located in high or extra-high level.Therefore,the current fertilization method in peach orchard of Shanghai should be adjusted base on the soil nutrients status.In order to keep the balance and efficient supply of soil nutrients,the total fertilization amount should be reduced and the application ratio of organic manure should be adjusted base on soil OM contents.The ASI analysis method is an effective approach to estimate soil nutrients status and then guide scientific fertilization in peach orchard.

关 键 词：桃园 土壤养分 科学施肥 种植区域 ASI法 

分 类 号：S158[农业科学—土壤学]