CAJ | 학술논문

采集宜君县10个乡镇典型代表村0～25 cm层次土样，分别测定土壤pH值、有机质、全氮、全磷、全钾、碱解氮、速效磷、速效钾等指标，并采用改进的内梅罗指数法对各个乡镇的土壤养分进行调查与评价。结果表明：宜君县各个乡镇土壤综合肥力水平整体一般，其中，五里镇、雷塬乡、城关镇、西村乡、彭镇、棋盘镇、云梦乡、太安镇和哭泉乡土壤肥力系数为0．91～1．19（0．9～1．8），属于一般肥力水平；尧生乡土壤肥力系数仅为0．89（＜0．9），土壤肥力属于贫瘠水平。全氮和速效磷是此地区的主要限制因子。总体来看，宜君县土壤养分含量处于中低水平，且存在碱解氮和速效钾含量分布不均匀，全氮、全磷和速效磷含量偏低、pH值偏高等问题，因此土壤的培肥空间比较大。
채집의군현10개향진전형대표촌0～25 cm층차토양，분별측정토양pH치、유궤질、전담、전린、전갑、감해담、속효린、속효갑등지표，병채용개진적내매라지수법대각개향진적토양양분진행조사여평개。결과표명：의군현각개향진토양종합비력수평정체일반，기중，오리진、뢰원향、성관진、서촌향、팽진、기반진、운몽향、태안진화곡천향토양비력계수위0．91～1．19（0．9～1．8），속우일반비력수평；요생향토양비력계수부위0．89（＜0．9），토양비력속우빈척수평。전담화속효린시차지구적주요한제인자。총체래간，의군현토양양분함량처우중저수평，차존재감해담화속효갑함량분포불균균，전담、전린화속효린함량편저、pH치편고등문제，인차토양적배비공간비교대。
The soil samples in 0~25 cm layers were collected ,and pH value ,organic matter content ,total N ,total P ,total K ,alkali-hydrolysable N content ,available P content ,and available K content were measured ,this study were conducted to investigate and evaluate the nutrients of soil of 10 towns of Yijun County using the improved Nemerow index method .As a whole ,the soil fertility of each village and town was moderate in Yijun County .Wuli town ,Leiyuan town , Chengguan town ,Xicun town ,Peng town ,Qipan town ,Yunmeng town ,Taian town and Kuquan town had a soil fertility coefficients between 0 .91~1 .19 (0 .9~1 .8 ) ,indicating a moderate fertility level .However ,the poor soil fertility level of Yaosheng town was reflected by the soil fertility coefficient of 0 .89 (<0 .9 ) .The main limiting factors in this region were total N and available P .In summary ,problems facing Yijun County in terms of soils are low level of nutrient con-tent ,uneven distribution of alkali-hydrolysable N and available K ,inadequate amount of total N ,total P and available P ,and high pH value ,implying a larger space of the improvement of soil fertility .