CAJ | 학술논문

为研究吉林中部黑土区营养元素地球化学特征，在研究区进行了系统的野外调查和土壤-玉米籽粒样品的采集。在对数据进行统计对比的基础上，对研究区九种营养元素全量、有效态含量及玉米籽粒中营养元素含量的空间分布特征进行了分析，并对研究区土壤营养状况进行了评价。结果表明：K、Ca、Mg、Fe、Mn、Cu、Zn、B元素有效态含量充足，Mo元素有效态含量缺乏，不同区域营养元素空间分布存在差异；Ca、Mg、Mn、Mo元素全量与有效态呈显著正相关，K、Ca、B元素有效态含量随pH值的升高而升高，Fe、Mn、Mo元素有效态含量随pH值的升高而降低。针对研究区有效Mo缺乏的现象，可以通过施用钼肥、降低土壤pH值等的方法，增加有效态钼的含量。
위연구길림중부흑토구영양원소지구화학특정，재연구구진행료계통적야외조사화토양-옥미자립양품적채집。재대수거진행통계대비적기출상，대연구구구충영양원소전량、유효태함량급옥미자립중영양원소함량적공간분포특정진행료분석，병대연구구토양영양상황진행료평개。결과표명：K、Ca、Mg、Fe、Mn、Cu、Zn、B원소유효태함량충족，Mo원소유효태함량결핍，불동구역영양원소공간분포존재차이；Ca、Mg、Mn、Mo원소전량여유효태정현저정상관，K、Ca、B원소유효태함량수pH치적승고이승고，Fe、Mn、Mo원소유효태함량수pH치적승고이강저。침대연구구유효Mo결핍적현상，가이통과시용목비、강저토양pH치등적방법，증가유효태목적함량。
In order to study the geochemical characteristics of nutrient elements in black soil region of central Jilin,the systematic field investigation was conducted,and the soil and corn seeds samples were col-lected.On the basis of statistical comparison of data,the spatial distribution characteristics of total contents and available contents of nine kinds of nutrient elements in soil in research areas and their contents in corn seeds were analyzed.The nutrient status in research areas was also evaluated.The results showed that the a-vailable contents of K,Ca,Mg,Fe,Mn,Cu,Zn and B were sufficient;the available content of Mo was ab-sent;the spatial distribution characteristics of nutrient elements in different research areas were different.The total contents of Ca,Mg,Mn and Mo were positively significantly correlated with their available contents;the available contents of K,Ca and B increased,while those of Fe,Mn and Mo decreased with the increase of pH.To solve the problem of lack of available Mo in research areas,using Mo fertilizer and bringing down the soil pH were the effective methods to increase the available Mo content.