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龙眼立地土壤中量、微量元素养分状况及其增产效应

EFFECTS OF APPLYING MICRO-SECONDARY ELEMENTS ON LONGAN IN RELATION TO SOIL NUTRIENT SUPPLY IN GUANGDONG PROVINCE

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【作者】 张发宝陈建生徐培智刘国坚

【Author】 Zhang Fabao Chen Jiansheng Xu peizhi Liu Guojian(Soil and Fertilizer Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou 510640)

【机构】 广东省农业科学院土壤肥料研究所

【摘要】 应用土壤养分状况系统研究法对我省26个龙眼园土壤进行中量、微量元素含量测定、土壤养分吸附试验及盆栽诊断试验,并在2个果园进行缺素肥效试验。结果表明,88.5%土壤缺Ca,84.6%土壤缺Mg,57.7%土壤缺S,38.5%土壤缺Zn和Cu,34.6%土壤缺Mo,30.8%土壤缺B和Mn。在施用氮磷钾肥料基础上,根据龙眼园土壤养分状况有针对性补充中量微量元素肥料有明显的增产效果,缺素处理则有不同程度的减产。施用中微肥应有针对性,应了解土壤养分状况,以适宜、安全为原则。

【Abstract】 A systematic approach technique was used for systematically investigating microsecondary nutrients in 26 soils of Longan orchard in Guangdong Province. The approach of investigation included soil test, ion absorption, screen research and orchard trials to study nutritional constraints of the soils and evaluate the effects of fertilization of micro-secondary nutrients .It has been identified that 88.5% of the 26 soils was deficient in Ca, 84.6% in Mg , 57.7% in S, 38.5% in Zn and Cu, 34.6% in Mo, and 30.8% in B and Mn. The results of orchard trials showed that longan fruit yields were increased and fruit quality were improved with application of all suspected deficient micro-secondary nutrients of the soil , based on proper rates of NPK , However , application of micro-secondary nutrient should be depended on the status of soil nutrient .

【基金】 加拿大钾磷研究所资助项目(1993~1995);广东省科委“九五”攻关项目部分内容
  • 【会议录名称】 青年学者论土壤与植物营养科学——第七届全国青年土壤暨第二届全国青年植物营养科学工作者学术讨论会论文集
  • 【会议名称】第七届全国青年土壤暨第二届全国青年植物营养科学工作者学术讨论会
  • 【会议时间】2000-09
  • 【会议地点】中国北京
  • 【分类号】S667.2
  • 【主办单位】中国土壤学会青年工作委员会、中国植物营养与肥料学会青年工作委员会
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