海南主要益智生长区土壤养分调查与分析  被引量:6

Investigation and Analysis of Soil Nutrients in the Main Growing Area of Alpinia oxyphylla in Hainan

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作  者:李榕涛[1] 卢丽兰[1] 甘炳春[1] 许明会[1] 

机构地区:[1]中国医学科学院北京协和医学院药用植物研究所海南分所/海南省南药资源保护与开发重点实验室,海南万宁571533

出  处:《中国农学通报》2011年第13期130-134,共5页Chinese Agricultural Science Bulletin

基  金:"十一五"国家科技支撑计划课题"重点道地南药良种选育及规范化生产关键技术研究"(2007BAI27B03)

摘  要:为了解海南益智土壤养分状况,比较海南益智自然野生区与人工栽培区土壤养分。分别对海南益智生长区土壤养分进行检测,对海南主要天然野生和人工栽培区土壤养分状况进行分析。结果表明,除了海南省少部分地区栽培区的土壤养分比野生区高以外,大部分益智人工栽培区的养分含量比野生区低。海南大部分益智生长区土壤全氮、全钾处于Ⅲ级水平以上,全磷处于Ⅲ级水平以下。大部分地区速效磷和碱解氮含量很低,而速效钾含量较丰富。碱解氮主要以铵态氮为主。土壤有机质与全氮、全磷呈极显著正相关关系(相关系数均为0.789),而与碱解氮呈显著相关关系(相关系数为0.576)。全氮与碱解氮、全磷呈显著正相关关系(相关系数为0.825、0.999)。碱解氮与全磷呈极显著正相关关系(相关系数为0.825),而与速效磷、速效钾呈显著正相关关系(相关系数为0.679、0.622)。全钾与速效钾呈显著正相关关系(相关系数为0.599)。总体来说,益智自然野生区与栽培区各养分水平差异很大。To know about Alpinia oxyphylla soil nutrient status of Hainan,China,and the author compared soil nutrients of the artificial cultivation and uncultivated areas.The objective of the research was to analyze the soil nutrient in wile and cultivated Alpinia oxyphylla areas,by determining the soil nutrient.The results showed that soil nutrient content of Alpinia oxyphylla in artificial cultivated area was higher than that of uncultivated area in a small number of areas,however,as was on the contrary in most of the major producing areas of Alpinia oxyphylla.The levels of total nitrogen and potassium were in most areas of growing Alpinia oxyphylla in Hainan,but total phosphorus was at or below Ⅲ grade.Available phosphorus and nitrogen content was very low,and available K was in the rich.Available nitrogen mainly was in the ammonium.Soil organic matter was significantly positive correlation to total nitrogen and total phosphorus (R 2 =0.789),and was correlated to available nitrogen (R 2 =0.576).Total nitrogen was significantly positive correlation to available nitrogen and total phosphorus (R 2 =0.825,0.999).Available nitrogen were highly significant positive correlation to total phosphorus (R 2 =0.825),and significantly correlated to available P and K (R 2 =0.679,0.622).Total K was significantly correlated to available K (R 2 =0.599).In the whole,there was a significant difference in nutrient levels between uncultivated and cultivated areas.

关 键 词:海南 益智 土壤养分 自然野生区 人工栽培区 

分 类 号:S154.1[农业科学—土壤学] S158.2[农业科学—农业基础科学]

 

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