天水市麦积区耕地土壤养分状况评价  

Evaluation of Cultivated Soil Nutriend Status in Maiji District of Tianshui City

作　　者：张保田[1] 

机构地区：[1]甘肃省天水市麦积区农业技术推广中心,甘肃天水741020

出　　处：《甘肃农业科技》2014年第3期10-13,共4页Gansu Agricultural Science and Technology

摘　　要：对天水市麦积区17个乡镇的耕地土壤分区域进行了采样、测定,结果表明,麦积区耕地土壤有机质含量11.35 g/kg、全氮含量0.76 g/kg、全磷含量0.78 g/kg、碱解氮含量56 mg/kg、有效磷含量13.2 mg/kg、速效钾含量224 mg/kg、全钾含量20.3 g/kg;铜含量1.10 mg/kg,有效铁含量8.38 mg/kg、有效锌含量1.12 mg/kg、有效锰含量11.77 mg/kg、有效硼含量0.29 mg/kg。总体评价结果为有机质处于较缺水平,速效磷、有效锌、有效铁、有效锰属于中等水平,碱解氮和有效硼处于缺乏水平,速效钾和有效铜处于丰富水平。全氮、全磷、碱解氮与第二次全国土壤普查结果相比均有不同程度的提高,土壤速效磷上升幅度较大,全钾、速效钾基本持平。The cultivated siol nutrient of differend region were collected in 17 township streets offices of Maiji district of Tianshui city . The results showed that the content of organic matter and the total N,total P,total K were 11.35 g/kg,0.76 g/kg,0.78 g/kg and 20.3 g/kg,respectively;the content of available Cu,available N,available P,available K,available Fe,available Zn, available Mn,available B were 1.10 mg/kg,56 mg/kg,13.2 mg/kg,224 mg/kg、8.38 mg/kg,1.12 mg/kg,11.77 mg/kg and 0.29 mg/kg,respectively . The overall evaluation results should be also taken to the content of organic was in the relative lack level available P、Zn、Fe、Mn was in middle level the available B and available N is in deficient level . The content of available K and available Cu is in abundant level、Compared with 1982,there were different degrees of improvement,which available P increase largely,the contents of total K and available K nearly no change .

关 键 词：耕地 土壤养分 测定 评价 麦积区 

分 类 号：S158.3[农业科学—土壤学]