摘要
以赣南脐橙18个县(市)果园为采样区,共采集了果园土壤农化样1 405份,测定了土壤有机质含量,并统计分析了果园土壤有机质的区域分布特征、有机质随土壤类型以及种植年限的变化特征。结果表明:不同种植区域果园土壤有机质含量分布存在较大差异,土壤农化样有机质含量变幅在1.01～47.58g/kg之间,81%的果园土壤表现为有机质缺乏;土壤有机质含量与土壤本身的结构和特性紧密相关,紫色土有机质缺乏表现最明显;果园种植年限10年内,土壤有机质含量随园龄增加明显提高,此后稍有下降并趋于稳定。基于土壤有机质变化特征及对果园的现状调查,提出了提高果园土壤有机质的主要技术措施。
1 405 soil samples from navel orange orchards and 229 natural background sou samples from nearby areas were collected from eighteen counties in Ganzhou city, Jiangxi province. These samples were analyzed for the content of soil organic matter, and the factors influencing the content＇ of soil organic matter were also analyzed. The results showed that the differences in soil organic matter content between different counties were significant, ranging from 1.01 g/kg to 47.58 g/kg. 81% of the samples were deficient in organic matter. The organic matter content varied with the soil types classified by soil structure and property, and the lowest content of organic matter was found in purple soil. The soil organic matter content increased obviously during the first ten years after planting, and decreased slightly afterward. The technical measures to increase the amount of soil or- ganic matter were suggested based on the distribution patterns of soil organic matter and the surveys on the methods of orchard management.
出处
《中国南方果树》
北大核心
2012年第4期18-20,共3页
South China Fruits
基金
国家科技支撑计划课题(2007BAD61B03)
江西省教育厅科学技术研究项目(GJJ09580)资助
关键词
土壤有机质
脐橙果园
种植年限
土壤类型
soil organic matter
navel orange orchard
orchard age
soil type
