CAJ | 학술논문

[目的]研究澳洲坚果叶片的营养特性，掌握其营养规律和特点，为科学合理施肥提供依据，也为今后选育营养高效的澳洲坚果品种提供参考。研究澳洲坚果叶片中9种矿质元素含量的周年变化。[方法]选取6年生桂热1号澳洲坚果健康植株，2011年每月15日在所选20株树的东南西北4个方向，采集枝条顶部往下第2轮叶1片，分别测定 N、P、K、Ca、Mg、Zn、Cu、Fe、Mn 等9种矿质元素的含量。[结果]叶片 N、P、K含量在4月均出现高峰，之后随时间推移 N含量缓慢下降，P含量保持稳定，而 K含量略有升高；Ca、Fe含量在4月时均有不同程度降低，之后缓慢升高， Mg周年含量保持基本稳定，而 Mn含量周年缓慢降低；Cu、Zn含量4月达高峰，之后含量先减后增。[结论]生产实践中应及时补充 N、K、Ca和Fe等元素。
[목적]연구오주견과협편적영양특성，장악기영양규률화특점，위과학합리시비제공의거，야위금후선육영양고효적오주견과품충제공삼고。연구오주견과협편중9충광질원소함량적주년변화。[방법]선취6년생계열1호오주견과건강식주，2011년매월15일재소선20주수적동남서북4개방향，채집지조정부왕하제2륜협1편，분별측정 N、P、K、Ca、Mg、Zn、Cu、Fe、Mn 등9충광질원소적함량。[결과]협편 N、P、K함량재4월균출현고봉，지후수시간추이 N함량완만하강，P함량보지은정，이 K함량략유승고；Ca、Fe함량재4월시균유불동정도강저，지후완만승고， Mg주년함량보지기본은정，이 Mn함량주년완만강저；Cu、Zn함량4월체고봉，지후함량선감후증。[결론]생산실천중응급시보충 N、K、Ca화Fe등원소。
[Objective] To investigate the annual variation of 9 mineral nutrition ele-ments content in Macadamia integrifolia leaves. [Method] Twenty 6-year-old "Guire No. 1" healthy plants were selected. On the 15th of every month in 2011, 1 leaf in the second round from top-branch in 4 directions of the 20 trees was col ected. The content of 9 mineral elements of N, P, K, Ca, Mg, Zn, Cu, Fe and Mn were deter-mined. [Result] The results showed that the N, P, K content in leaves reached a peak in April, then N content decreased slowly, P content stayed stable, and K con-tent increased slightly; Ca, Fe content decreased in April to different degrees and then increased slowly. Mg content was consistent al year round, meanwhile Mn content decreased slightly. Cu and Zn content reached a peak in April, and then presented a rise-fal trend. [Conclusion] N, K, Ca, Mg should be supplemented in time in practice.