摘要
通过对海南省大丰、红田、阳江、东太、中建5个橡胶园0～20 cm和21～40 cm土层的86个土壤样品进行测试分析。结果表明,土壤pH偏低,43.84%的土壤样品pH<4.5。全区土壤样品中44.2%的土壤有机质含量低于20 g/kg,45.3%的样品土壤碱解氮含量低于80 mg/kg,95.4%的样品土壤有效磷含量低于5 mg/kg,72.1%的样品土壤交换性钙含量低于2.5 cmol(+)/kg,88.4%的样品土壤交换性镁含量低于0.4 cmol(+)/kg,46.5%的样品土壤阳离子交换量(CEC)含量低于5 cmol(+)/kg,65.1%的样品土壤有效铜含量低于2 mg/kg;全区土壤速效钾和有效锌含量较丰富,83.7%的土壤样品速效钾含量高于60 mg/kg,100%样品土壤有效锌含量高于1.5 mg/kg。整体上海南橡胶园土壤养分肥力较低且各地区土壤养分状况差异明显。
The soil samples from Dafeng,Hongtian,Yangjiang,Dongtiai and Zhongjian rubber plantations in Hainan province were analysised. The results showed that soil pH was low, 43.84% of the soil samples pH lower than 4.5. The organic matter content in 44.2% of soil samples were lower than 20 g/kg,available N content in 45.3% of soil samples were lower than 80 mg/kg,available P content in 95.4% of soil samples were lower than 5 mg/kg,exchangeable Ca content in 72.1% of soil samples were lower than 2.5 cmol （＋）/kg, exchangeable Mg content in 88.4% of soil samples were lower than 0.4 cmol （＋）/kg,the CEC content in 46.5% of soil samples were lower than 5 emol （＋）/kg,available Cu content in 65.1% of soil samples were lower than 2 mg/kg,available K content in 83.7% of soil samples were more than 60 mg/kg, available Zn content in 100% of soil samples were more than 1.5 mg/kg. Overall,soil nutrient ferlility of rubber plantations was low and the soil nutrient fertility situation between different sampling areas were significant difference.
出处
《广东农业科学》
CAS
CSCD
北大核心
2011年第11期73-77,共5页
Guangdong Agricultural Sciences
基金
海南大学"211"工程项目
国家天然橡胶产业技术体系建设专项资金(nycytx-34-GW2-2)
关键词
橡胶园
土壤养分
海南省
rubber plantation
soil nutrient
Hainan province
