黑龙港流域古河道细质沙土微肥有效性的研究  

Study on the Availabilily of the Micronutrient Application in Fine Sandy Soils in Heilonggang District

作　　者：江荣风[1] 陶益寿[1] 张起刚[1] 

机构地区：[1]北京农业大学植物营养系,北京100094

出　　处：《中国农业大学学报》1995年第S2期81-83,共3页Journal of China Agricultural University

摘　　要：本文采用土壤农化分析手段和田间生物试验方法,评价黑龙港流域古河道细质沙土施用微量元素的有效性。结果表明:该地区土壤肥力低,严重缺乏氮、磷等大量元素;土壤有效微量元素锌、铁和硼含量均低于临界浓度;花生施用锌、铁、硼和钼肥分别增产13.9%。12.0%,8.0%和3.0%,小麦喷施锌、锰肥分别增产16.2%和4.8%。Soil analysis and field experiments were conducted for evaluation of the micronutrient avail- ability in fine sandy soils in Heilonggang District.The results indicated that N、P nutrients were seriously deficient and available Zn、Fe and B concentration were lower than the critical value respectively;ZnSO_4、 Fe-EDTA,Borax and(NH_4)_2MoO_4 fertilization increased yield of peanut by 13.9%,12.0%,8.0% and 3.20%,while ZnSO_4、MnSO_4application increased yield of winter wheat by 16.2% and 4.8% respecfively.

关 键 词：细质沙土 微量元素 有效性 冬小麦 花生 

分 类 号：S143.7[农业科学—肥料学]