摘要
大田条件下,以花育22号和花育20号为试验材料,设控释肥(T1)、控释肥减施(T2)、普通肥料(T3)和不施肥(T4)处理,研究了控释肥对花生氮代谢相关酶活性的影响。结果表明,与不施肥处理相比,施肥处理花生结荚期和成熟期根系和叶片的可溶性蛋白含量、NRase、GDH、GS、GPT等活性显著增加。各施肥处理间比较,与普通肥料相比,控释肥可有效提高花生结荚期和成熟期根、叶可溶性蛋白质含量,增加氮代谢相关酶NRase、GDH、GS、GPT等活性;控释肥减施处理花生根叶可溶性蛋白含量和相关酶活性花生生育前期低于控释肥处理和普通肥料处理,但成熟期和普通肥料处理差异不显著。总之,控释肥比普通无机肥更有利于花生生育后期氮素同化和蛋白质的合成,延缓根系和叶片衰老。
Under field condition, field experiments were carried out to study the effects of con- trolled-release fertilizers on correlating enzyme activity of nitrogen metabolism in peanut varieties Hu- ayu22 and Huayu20 with four treatments： controlled-release fertilizer （T1）, 25% reduced controlled- release fertilizer application amount （T2）, ordinary fertilizer （T3） and without fertilization （T4）. Compared with no fertilization, fertilization significantly increased the soluble protein content and ni- trogen metabolism correlating enzyme such as NRase, GDH, GS and GPT activity of root and leaf in peanut at pod filling stage and mature stage. Controlled-release fertilizer could increase the protein content in plant root and leaf after pod setting stage, and improve the activity of nitrogen metabolism correlating enzyme including NRase, GDH, GS, GPT and so on; Reducing controlled-release fertilizer application decreased the protein content and nitrogen metabolism correlating enzyme activity in con- trast to chemical fertilizer treatment, but was similar to chemical fertilizer during peanut mature stage. In conclusion, controlled-release fertilizer was more benefit to nitrogen assimilation and protein synthesis, as well as delayed root and leaf senescence.
出处
《花生学报》
北大核心
2017年第2期32-39,共8页
Journal of Peanut Science
基金
山东省2015年农业重大应用技术创新课题
山东省农科院创新工程(CXGC2016B05)
山东省农业科学院科技创新重点项目(2014CXZ11-2
2014CXZ06-2)
国家科技支撑计划(2014BAD11B04)
国家花生产业技术体系(CARS-14)
关键词
花生
控释肥
氮代谢
酶活性
peanut
controlled release fertilizer
nitrogen metabolism
enzyme activity
