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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)4mmol/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 6mmol/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 6mmol/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 2mmol/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 4mmol/L、Gly-N 6mmol/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-N4mmol/L浓度处理为牛肉红朱橘苗期养分管理的最佳模式。
The effects of different concentrations of Gly on the dry matter weight, rhizosphere and non-rhizosphere soil nutrient contents of Beauveria cogoniflora were studied using freshwater red as seedlings and fresh water as CK. The results showed that the dry matter weight of Beauveria coggyganda under 4mmol / L Gly-N treatment was significantly higher than that of other treatments, and the soil water content was 79.80% -83.95% The rhizosphere pH was higher than that of rhizosphere soil except that the pH value of rhizosphere soil was higher than that of non-rhizosphere soil except Gly-N 6mmol / L. The content of soil organic matter in rhizosphere soil was higher than that in rhizosphere soil (Gly-N 6mmol / L) Rhizosphere soil is low, the other treatments are rhizosphere soil higher than non-rhizosphere soil; Rhizosphere and non-rhizosphere soil total nitrogen content is consistent; rhizosphere soil total phosphorus content CK, Gly-N 2mmol / L than non-rhizosphere soil The content of Gly-N 4mmol / L, Gly-N 6mmol / L total potassium in non-rhizosphere soil was higher than that in rhizosphere soil, while the rest treatments were more rhizosphere soil than rhizosphere soil Non-rhizosphere soil is high. Under this experimental condition, the best method of nutrient management for Beauveria bracteatum was determined by comprehensive analysis of the dry matter, organic matter, total phosphorus and total potassium of Beauveria coggygatus and Gly-N4mmol / L of Glycine nitrogen.