摘要
采用DRIS诊断法对四川60块巨桉人工林标准地叶片养分进行诊断,筛选出N、P、Fe、B等4个叶片养分浓度指标和N/Zn、P/N、P/K、P/Ca、P/Zn、P/B、K/N、K/Zn、Ca/N、Ca/Zn、Ca/Mn、Ca/B、Mg/N、Mg/P、Mg/K、Mg/B、S/N、S/Mg、S/Zn、Cu/N、Cu/P、Cu/K、Cu/Mg、Cu/Zn、Cu/B、Zn/Mg、Fe/N、Fe/P、Fe/K、Fe/Ca、Fe/Mg、Fe/S、Fe/Cu、Fe/Zn、Fe/B、Mn/P、Mn/K、B/N、B/K等39个叶片养分浓度比值指标,并利用高产组叶片养分浓度、高产组养分诊断指数及其等级制定了相应的养分诊断标准,为指导生产提供了参考依据。
Sixty standard sample sites were set up to diagnose foliar nutrient status by DRIS. Four foliar nutrient concentration indexes including N, P, Fe, B and thirty - nine foliar nutrient concentration ratio indexes including N/Zn, P/N, P/K, P/Ca, P/Zn, P/B, K/N, K/Zn, Ca/N, Ca/Zn, Ca/Mn, Ca/B, Mg/N, Mg/P, Mg/K, Mg/B, S/N, S/Mg, S/Zn, Cu/N, Cu/P, Cu/K, Cu/Mg, Cu/Zn, Cu/B, Zn/Mg, Fe/N, Fe/P, Fe/K, Fe/Ca, Fe/Mg, Fe/S, Fe/Cu, Fe/Zn, Fe/B, Mn/P, Mn/K, B/N, B/K were chosen as diagnosis indexes, and corresponding diagnosis standards were established by using foliar nutrient concentration, nutrient diagnosis indexes and grades of high yield group.
出处
《江西农业大学学报》
CAS
CSCD
北大核心
2008年第4期661-665,719,共6页
Acta Agriculturae Universitatis Jiangxiensis
基金
国家"十一五"科技支撑项目(2006BAC01A11)
关键词
巨桉
养分诊断
DRIS
Eucalyptus grandis
nutrient diagnosis
DRIS
