CHAI Zhong- ping,WANG Xue- mei,CHEN Bo- lang,et al.Study on Diagnosis and Recommendation Integrated System Norms Based on Leaves Nutrition Analysis of Korla Fragrant Pear[J].Northern Horticulture,2014,38(02):29-33.
基于库尔勒香梨叶片营养分析的诊断施肥
- Title:
- Study on Diagnosis and Recommendation Integrated System Norms Based on Leaves Nutrition Analysis of Korla Fragrant Pear
- 文章编号:
- 1001-0009(2014)02-0029-05
- Keywords:
- Korla fragrant pear; nutrient diagnosis; DRIS; DRIS standard
- 分类号:
- S 661.2
- 文献标志码:
- A
- 摘要:
- 以低产果园和高产果园的库尔勒香梨叶片为试材,应用诊断施肥综合法(DRIS),测定和统计分析了叶片营养元素含量,以期建立库尔勒香梨营养诊断指标,为指导科学施肥提供参考。结果表明:筛选出N/Mg、N/Mn、N/Cu、P/Mg、P/Fe、P/Mn、P/Cu、K/Mn、K/Cu、Ca/Mg、Ca/Mn、Ca/Cu、Mg/Fe、Mg/Cu、Mg/Zn、Fe/Mn、Fe/Cu、Fe/Zn、Mn/Zn和Cu/Zn作为库尔勒香梨营养元素诊断的DRIS参项,并初步提出DRIS标准;通过DRIS指数计算,20 a树龄库尔勒香梨低产果园的养分平衡总体水平较低,需肥顺序为P>N>Ca>K>Zn>Fe>Mg>Mn>Cu。
- Abstract:
- Taking leaves of Korla fragrant pear in low yield orchard and high yield orchard as materials,with a Diagnosis and Recommendation Integrated System,content of leaf nutrition were determined and analyzed,in order to establish nutrition diagnosis indices of Korla fragrant pear for the purpose of guiding fertilization scientifically.The results showed that,N/Mg,N/Mn,N/Cu,P/Mg,P/Fe,P/Mn,P/Cu,K/Mn,K/Cu,Ca/Mg,Ca/Mn,Ca/Cu,Mg/Fe,Mg/Cu,Mg/Zn,Fe/Mn,Fe/Cu,Fe/Zn,Mn/Zn and Cu/Zn were selected as the DRIS parameters of nutrition diagnosis for Korla fragrant pear,and DRIS norms for nutrient diagnosis were put forward.Through the DRIS index calculation,the nutrient balance level of 20- year- old of Korla fragrant pear in low yield orchard was low.The order of nutrient requirement was P>N>Ca>K>Zn>Fe>Mg>Mn>Cu.
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备注/Memo
第一作者简介:柴仲平(1974- ),男,甘肃永昌人,博士,副教授,研究方向为土壤质量及植物营养。E-mail:chaizhongpingth@sina.com.