CAJ | 학술논문

[目的]研究不同施氮水平和施氮方式对水稻植株不同形态氮素含量的影响。[方法]以桂朝2号和叠加占为试验材料,以总氮、蛋白氮、叶绿素氮、可溶性蛋白氮、Rubisco-N、游离氨基态氮为指标,研究施氮对水稻植株不同形态氮素含量的影响。[结果]水稻抽穗期和成熟期植株总氮、蛋白氮、叶绿素氮、可溶性蛋白氮、Rubisco-N、游离氨基态氮含量均随施氮水平提高而提高。在相同施氮量条件下,重施穗肥时其含量较高。但施氮对不同形态氮素的影响程度不同,对Rubisco-N和游离氨基态氮影响明显。不同施氮水平下两个品种早晚季无论是抽穗期还是成熟期Rubisco-N和游离氨基态氮含量差异均达到显著或极显著水平。相关分析表明,水稻植株早晚季抽穗期和成熟期水稻植株总氮含量与蛋白氮含量均呈极显著相关。[结论]该研究为阐明氮肥运筹对水稻氮素吸收与利用的调节作用提供了理论依据。
[목적]연구불동시담수평화시담방식대수도식주불동형태담소함량적영향。[방법]이계조2호화첩가점위시험재료,이총담、단백담、협록소담、가용성단백담、Rubisco-N、유리안기태담위지표,연구시담대수도식주불동형태담소함량적영향。[결과]수도추수기화성숙기식주총담、단백담、협록소담、가용성단백담、Rubisco-N、유리안기태담함량균수시담수평제고이제고。재상동시담량조건하,중시수비시기함량교고。단시담대불동형태담소적영향정도불동,대Rubisco-N화유리안기태담영향명현。불동시담수평하량개품충조만계무론시추수기환시성숙기Rubisco-N화유리안기태담함량차이균체도현저혹겁현저수평。상관분석표명,수도식주조만계추수기화성숙기수도식주총담함량여단백담함량균정겁현저상관。[결론]해연구위천명담비운주대수도담소흡수여이용적조절작용제공료이론의거。
[Objective]The paper was to study the effect of different nitrogen application levels and modes on contents of different forms of nitrogen in rice plants.[Method] Using Guichao 2 and Diejiazhan as test materials,with total nitrogen,protein nitrogen,chlorophyll nitrogen,soluble protein nitrogen,Rubisco nitrogen,free amino acid nitrogen as indicators,the effect of nitrogen application on contents of different forms of nitrogen in rice plants were studied.[Result] The contents of total nitrogen,protein nitrogen,chlorophyll nitrogen,soluble protein nitrogen,Rubisco-N,free amino nitrogen of rice plant during heading and maturity stage increased with the increasing application amount of nitrogen,and their contents would be high under heavy application of spike fertilizer when the application amount of nitrogen was the same.However,application of nitrogen had different impact on different forms of nitrogen,which showed obvious impact on the contents of Rubisco-N and free amino nitrogen.The differences of Rubisco-N and free amino nitrogen content of two varieties during heading and maturity stage under different nitrogen application modes all reached significant or extremely significant level.Correlation analysis showed that total nitrogen content of rice plant had extremely significant correlation with protein nitrogen content during heading and maturity stage in both early and late seasons.[Conclusion] The study provided a theoretical basis for clarifying the regulatory role of nitrogen application on nitrogen absorption and utilization.