YUAN Qi-feng,CHEN Shou-yi,JIANG Ting,et al.Effect of Different Concentration of Organic Nitrogen Glycine on Rhizosphere Soil Nutrient of C.Reticulata Seedling[J].Northern Horticulture,2014,38(08):156-160.
有机氮甘氨酸对牛肉红朱橘苗根际土壤养分的影响
- Title:
- Effect of Different Concentration of Organic Nitrogen Glycine on Rhizosphere Soil Nutrient of C.Reticulata Seedling
- 文章编号:
- 1001-0009(2014)08-0156-05
- Keywords:
- C.Reticulata; glycine-N concentration; dry matter; soil nutrient
- 分类号:
- S 151.9+3
- 文献标志码:
- A
- 摘要:
- 以牛肉红朱橘幼苗为试材，以清水为对照（CK），研究了不同浓度的甘氨酸（Gly）对牛肉红朱橘干物质重、根际和非根际土壤养分含量的影响。结果表明：甘氨酸态氮（Gly-N） 4 mmol/L处理下牛肉红朱橘干物质重显著高于其它处理，且土壤含水量在79.80%～83.95%，适于牛肉红朱橘苗期的正常生长需水量；根际土壤pH除Gly-N 6 mmol/L高于非根际外，其余处理均是根际土壤pH较根外土壤低；土壤有机质含量Gly-N 6 mmol/L根际土壤有机质含量较非根际土壤低，其余处理均是根际土壤高于非根际土壤；根际和非根际土壤全氮含量一致；根际土壤全磷含量CK、Gly-N 2 mmol/L较非根际土壤低，其余处理均是根际土壤较非根际土壤高；Gly-N 4 mmol/L、Gly-N 6 mmol/L全钾含量非根际土壤高于根际土壤，其余处理均是根际土壤较非根际土壤高。在该试验条件下，综合分析牛肉红朱橘干物质、有机质、全磷和全钾指标，以甘氨酸态氮Gly-N 4 mmol/L浓度处理为牛肉红朱橘苗期养分管理的最佳模式。
- Abstract:
- Taking seedlings of C.Reticulata as test materials，with water as the control (CK)，the effect of different concentrations of glycine on C.Reticulata dry weight，rhizosphere and non-rhizosphere soil nutrient content were studied.The results showed that the dry matter weigh contents at 4 mmol/L were observably higher than others，the soil moisture content in 79.80%~83.95% was requirement for the normal growth of C.Reticulata seedling，the rhizosphere soil pH，in addition to the Gly-N 6 mmol/L was higher than that of non rhizosphere soil，the others were lower.The organic matter content of the rhizosphere was lower than that of the non rhizosphere soil，only including the Gly-N 6 mmol/L.The soil total nitrogen content in rhizosphere was as well as in non rhizosphere soil.As for the soil total phosphorus content，the rhizosphere including CK，Gly-N 2 mmol/L were lower，the others were contrary.For total potassium content the Gly-N 4 mmol/L，the Gly-N 6 mmol/L was higher than that of rhizosphere soil，others were contrary.Under the conditions of this experiment，it was suggested that Gly-N 4 mmol/L treatment was better on C.Reticulata seedling.
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备注/Memo
第一作者简介：袁启凤(1983-)，女，硕士研究生，助理研究员，现主要从事园艺植物栽培技术等研究工作。E-mail:yuanqifeng1983@21cn.com.