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天水市麦积区耕地土壤养分状况评价
引用本文:张保田.天水市麦积区耕地土壤养分状况评价[J].甘肃农业科技,2014(3):10-13.
作者姓名:张保田
作者单位:甘肃省天水市麦积区农业技术推广中心,甘肃天水741020
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。

关 键 词:耕地  土壤养分  测定  评价  麦积区

Evaluation of Cultivated Soil Nutriend Status in Maiji District of Tianshui City
ZHANG Bao-tian.Evaluation of Cultivated Soil Nutriend Status in Maiji District of Tianshui City[J].Gansu Agricultural Science and Technology,2014(3):10-13.
Authors:ZHANG Bao-tian
Institution:ZHANG Bao-tian (Maiji Distriat Agricultural Technology Extending Conter of Tianshui city, Maiji Gansu 741020, China
Abstract: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 .
Keywords:Cultivated land  The content of soil  Analysis  Evaluation  Maiji area
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