广西农业科学院里建科研基地土壤养分状况调查分析

【目的】调查分析广西农业科学院武鸣里建科研基地土壤养分状况,为土地的合理利用和科学施肥提供基础数据。【方法】利用GPS定位,根据土壤类型和作物种植情况,采集0～20cm耕层土壤样品,分析其养分含量,并进行土壤养分分级。【结果】基地土壤pH为5.04～7.00,有机质平均含量为14.98g/kg,全量氮、磷、钾平均含量分别0.86、0.50和4.19g/kg;速效氮、磷、钾平均含量分别为67.7、12.0和90.2mg/kg;有效钙、有效镁平均含量分别为1022.0、66.6mg/kg;有效铜、锌、铁、锰、硼的平均含量分别为0.57、0.63、27.7、24.7和0.20mg/kg。【结论】广西...

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Published in南方农业学报 Vol. 43; no. 2; pp. 196 - 199
Main Author 陈桂芬 黄玉溢 熊柳梅 刘斌 汪羽宁 杨绍锷
Format Journal Article
LanguageChinese
Published 广西农业科学院农业资源与环境研究所,南宁,530007 2012
Subjects
分级统计
土壤养分
调查分析
里建科研基地
调查分析
土壤养分
分级统计
里建科研基地
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ISSN2095-1191
DOI10.3969/j:issn.2095-1191.2012.02.196

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Summary:【目的】调查分析广西农业科学院武鸣里建科研基地土壤养分状况,为土地的合理利用和科学施肥提供基础数据。【方法】利用GPS定位,根据土壤类型和作物种植情况,采集0～20cm耕层土壤样品,分析其养分含量,并进行土壤养分分级。【结果】基地土壤pH为5.04～7.00,有机质平均含量为14.98g/kg,全量氮、磷、钾平均含量分别0.86、0.50和4.19g/kg;速效氮、磷、钾平均含量分别为67.7、12.0和90.2mg/kg;有效钙、有效镁平均含量分别为1022.0、66.6mg/kg;有效铜、锌、铁、锰、硼的平均含量分别为0.57、0.63、27.7、24.7和0.20mg/kg。【结论】广西农业科学院武鸣里建科研基地土壤有机质含量偏低,氮、磷、钾含量普遍处于中下水平,土壤有效钙、铜、铁、锰含量较丰富,大部分土壤有效锌较缺乏,有效镁、硼十分缺乏。
Bibliography:45-1381/S
soil nutrient; investigation and analysis; grading statistic; Lijian Scientific Research Base
[Objective]In order to appropriately utilize the land resources at Lijian Scientific Research Base of GXAAS in Wuming（Nanning） and for scientific（soil test based） fertilization,the nutritional status of soils was investigated.[Method]By using GPS location,samples of different types of soils were taken from 0-20 cm soil layer and the nutrient contents were analyzed.[Result]The soils of Lijian Scientific Research Base showed pH in the range of 5.04-7.00 and 14.98 g/kg average organic matter content.The average total N,P and K contents in soils were 0.86,0.50 and 4.19 g/kg,respectively.The average available N,P,K,Ca and Mg contents in soils were recorded as 67.7,12.0,90.2,1022.0 and 66.6 mg/kg,respectively.Amongst micronutrients,the average available Cu,Zn,Fe,Mn and B content weres found to be 0.57,0.63,27.7,24.7 and 0.20 mg/kg,respectively.[Conclusion]The soils at Lijian Base contained lower organic matter,N,P
ISSN:2095-1191
DOI:10.3969/j:issn.2095-1191.2012.02.196